title: Gradle: Couldn't connect to Kotlin daemon on Windows
body: <p>When I try a task that involves a <code>compileKotlin</code> (or <code>compileTestKotlin</code>), then I receive this warning and the result is <em>unpleasant long duration of the build process</em>:</p>
  
  <blockquote>
    <p>Could not perform incremental compilation: Could not connect to Kotlin compile daemon</p>
    
    <p>Could not connect to kotlin daemon. Using fallback strategy.</p>
  </blockquote>
  
  <hr>
  
  <p>I'm not sure the issue is related to my OS (Windows) or not, but I have the same project (with synchronized files) on a remote machine with Linux OS and the issue doesn't exist there. See below comparison:</p>
  
  <ol>
  <li><p>The project on my remote machine (<strong>Linux</strong>) with a little change in Kotlin sources (in one module):</p>
  
  <pre><code>$ ./gradlew build
  
  Deprecated Gradle features were used in this build, making it incompatible with Gradle 6.0.
  Use '--warning-mode all' to show the individual deprecation warnings.
  See https://docs.gradle.org/5.0/userguide/command_line_interface.html#sec:command_line_warnings
  
  BUILD SUCCESSFUL in 5s
  46 actionable tasks: 17 executed, 29 up-to-date
  </code></pre></li>
  <li><p>Same project on my local machine (<strong>Windows</strong>) with same change:</p>
  
  <pre><code>&gt; gradlew build                                                                                       
  
  &gt; Task :backend:compileKotlin                                                                         
  Could not perform incremental compilation: Could not connect to Kotlin compile daemon                 
  Could not connect to kotlin daemon. Using fallback strategy.                                          
  
  warning: the '-d' option with a directory destination is ignored because '-Xbuild-file' is specified  
  
  Deprecated Gradle features were used in this build, making it incompatible with Gradle 6.0.           
  Use '--warning-mode all' to show the individual deprecation warnings.                                 
  See https://docs.gradle.org/5.0/userguide/command_line_interface.html#sec:command_line_warnings       
  
  BUILD SUCCESSFUL in 14s                                                                               
  46 actionable tasks: 17 executed, 29 up-to-date
  </code></pre></li>
  </ol>
  
  <p>Especially see build duration time in above two samples (and <em>the warning after <code>compileKotlin</code> task on Windows machine</em>). Even though my local machine (Windows) has more powerful hardware, but the result is the opposite (Gradle daemon is running on both).</p>
  
  <hr>
  
  <p>In order to further analyzability I also publish the output of <code>gradle -v</code>  and <code>java -version</code> on both machines:</p>
  
  <ol>
  <li><p><strong>Linux</strong>:</p>
  
  <pre><code>$ ./gradlew -v
  
  ------------------------------------------------------------
  Gradle 5.0
  ------------------------------------------------------------
  
  Build time:   2018-11-26 11:48:43 UTC
  Revision:     7fc6e5abf2fc5fe0824aec8a0f5462664dbcd987
  
  Kotlin DSL:   1.0.4
  Kotlin:       1.3.10
  Groovy:       2.5.4
  Ant:          Apache Ant(TM) version 1.9.13 compiled on July 10 2018
  JVM:          11.0.1 (Oracle Corporation 11.0.1+13)
  OS:           Linux 3.10.0-862.11.6.el7.x86_64 amd64
  
  
  $ java -version
  openjdk version "1.8.0_191"
  OpenJDK Runtime Environment (build 1.8.0_191-b12)
  OpenJDK 64-Bit Server VM (build 25.191-b12, mixed mode)
  </code></pre></li>
  <li><p><strong>Windows</strong>:</p>
  
  <pre><code>&gt; gradlew -v                                                           
  
  ------------------------------------------------------------           
  Gradle 5.0                                                             
  ------------------------------------------------------------           
  
  Build time:   2018-11-26 11:48:43 UTC                                  
  Revision:     7fc6e5abf2fc5fe0824aec8a0f5462664dbcd987                 
  
  Kotlin DSL:   1.0.4                                                    
  Kotlin:       1.3.10                                                   
  Groovy:       2.5.4                                                    
  Ant:          Apache Ant(TM) version 1.9.13 compiled on July 10 2018   
  JVM:          11.0.1 (Oracle Corporation 11.0.1+13)                    
  OS:           Windows 10 10.0 amd64
  
  
  &gt; java -version                                                     
  openjdk version "11.0.1" 2018-10-16                          
  OpenJDK Runtime Environment 18.9 (build 11.0.1+13)           
  OpenJDK 64-Bit Server VM 18.9 (build 11.0.1+13, mixed mode)  
  </code></pre></li>
  </ol>
  
  <hr>
  
  <p>Global <code>gradle.properties</code> files on two machines are exactly same (and there is no poject-local <code>gradle.properties</code> file for none):</p>
  
  <pre><code>org.gradle.daemon=true
  org.gradle.jvmargs=-Xmx1536m -XX:MaxPermSize=512m -XX:+HeapDumpOnOutOfMemoryError -Dfile.encoding=UTF-8
  org.gradle.parallel=true
  </code></pre>
  
  <p>(without comments)</p>
  
  <hr>
  
  <p>UPDATE 1:</p>
  
  <p>There is no problem when Gradle JVM has been set to <code>JDK 8</code>. But with <code>JDK 9+</code> you can see the issue. </p>
  
  <hr>
  
  <p>UPDATE 2:</p>
  
  <p>I updated my Kotlin plugin from <code>1.3.10</code> to <code>1.3.11</code>. Also, tested <code>1.3.20-eap-52</code>. But the issue persists.</p>
  
  <hr>
  
  <p>UPDATE 3:</p>
  
  <p>I ran Gradle's <code>compileKotlin</code> task with <code>--debug</code> option to get more information. The most important parts of the output are: </p>
  
  <p><em><sup>Note: Below tasks have been run when Gradle daemon was running, Kotlin compile daemon was stopped (if already running) and a little change has been made in a Kotlin source.</sup></em></p>
  
  <p><strong>I.</strong> When using <strong>JDK 8</strong> as Gradle's JVM (<em>OK</em>):</p>
  
  <pre><code>11:01:44 PM: Executing task 'compileKotlin --debug'...
  ...
  22:58:20.512 [DEBUG] [org.gradle.api.Project] [KOTLIN] Kotlin compiler args: -Xadd-compiler-builtins -Xbuild-file=C:\Users\I\AppData\Local\Temp\kjps3085207010700515672GradleKotlinJVM.script.xml -classpath D:\Devel\.gradle\caches\modules-2\files-2.1\org.jetbrains.kotlin\kotlin-stdlib-jdk8\1.3.10\71d0fa967493eb76648b575edf1762cb2d0c7f10\kotlin-stdlib-jdk8-1.3.10.jar;D:\Devel\.gradle\caches\modules-2\files-2.1\org.jetbrains.kotlin\kotlin-stdlib-jdk7\1.3.10\4d147bf43060dc43d61b096e24da1e67dfe0c032\kotlin-stdlib-jdk7-1.3.10.jar;D:\Devel\.gradle\caches\modules-2\files-2.1\org.jetbrains.kotlin\kotlin-stdlib\1.3.10\b178c1501609c6e4ee8be635513cb023a466457d\kotlin-stdlib-1.3.10.jar;D:\Devel\.gradle\caches\modules-2\files-2.1\org.jetbrains.kotlin\kotlin-stdlib-common\1.3.10\1b19d99229dcedad7caf50534dce38fe82845269\kotlin-stdlib-common-1.3.10.jar;D:\Devel\.gradle\caches\modules-2\files-2.1\org.jetbrains\annotations\13.0\919f0dfe192fb4e063e7dacadee7f8bb9a2672a9\annotations-13.0.jar -d D:\Devel\IdeaProjects\GradleKotlinJVM\build\classes\kotlin\main -jvm-target 1.8 -Xload-builtins-from-dependencies -module-name GradleKotlinJVM -no-reflect -no-stdlib -Xplugin=D:\Devel\.gradle\caches\modules-2\files-2.1\org.jetbrains.kotlin\kotlin-scripting-compiler-embeddable\1.3.10\e96a6125793c4ab0258119fcdce9d182f42d32b0\kotlin-scripting-compiler-embeddable-1.3.10.jar -verbose
  ...
  22:58:33.515 [INFO] [org.gradle.api.Task] i: found daemon on port 17519 (270393 ms old), trying to connect
  22:58:33.515 [INFO] [org.gradle.api.Task] i: cannot connect to registry: Connection refused: connect
  22:58:33.515 [INFO] [org.gradle.api.Task] i: found fresh run file 'C:\Users\I\AppData\Local\kotlin\daemon\kotlin-daemon.2019-01-06T19-23-50.118Z.ef9f56f7564e12d191d0ba8e50b581f8.17519.run' (270393 ms old), but no daemon, ignoring it
  22:58:33.515 [INFO] [org.gradle.api.Task] i: found daemon on port 17502 (63606 ms old), trying to connect
  22:58:33.515 [INFO] [org.gradle.api.Task] i: cannot connect to registry: Connection refused: connect
  22:58:33.515 [INFO] [org.gradle.api.Task] i: found fresh run file 'C:\Users\I\AppData\Local\kotlin\daemon\kotlin-daemon.2019-01-06T19-27-16.900Z.ef9f56f7564e12d191d0ba8e50b581f8.17502.run' (63606 ms old), but no daemon, ignoring it
  22:58:33.515 [INFO] [org.gradle.api.Task] i: starting the daemon as: C:\Program Files\Java\openjdk1.8.0_202\jre\bin\java -cp D:\Devel\.gradle\caches\modules-2\files-2.1\org.jetbrains.kotlin\kotlin-compiler-embeddable\1.3.10\adc9e577de39fba3db6d60662892118afedd713\kotlin-compiler-embeddable-1.3.10.jar;D:\Devel\.gradle\caches\modules-2\files-2.1\org.jetbrains.kotlin\kotlin-reflect\1.3.10\dd02865be0351707554b16a896b766b2396cdafa\kotlin-reflect-1.3.10.jar;D:\Devel\.gradle\caches\modules-2\files-2.1\org.jetbrains.kotlin\kotlin-stdlib\1.3.10\b178c1501609c6e4ee8be635513cb023a466457d\kotlin-stdlib-1.3.10.jar;D:\Devel\.gradle\caches\modules-2\files-2.1\org.jetbrains.kotlin\kotlin-script-runtime\1.3.10\1d2bac36f99b84e1493244f12629bc0756a3ff90\kotlin-script-runtime-1.3.10.jar;D:\Devel\.gradle\caches\modules-2\files-2.1\org.jetbrains.kotlin\kotlin-stdlib-common\1.3.10\1b19d99229dcedad7caf50534dce38fe82845269\kotlin-stdlib-common-1.3.10.jar;D:\Devel\.gradle\caches\modules-2\files-2.1\org.jetbrains\annotations\13.0\919f0dfe192fb4e063e7dacadee7f8bb9a2672a9\annotations-13.0.jar;C:\Program Files\Java\openjdk1.8.0_202\lib\tools.jar -Djava.awt.headless=true -Djava.rmi.server.hostname=127.0.0.1 -Xmx1536m -XX:MaxPermSize=512m -Dkotlin.environment.keepalive org.jetbrains.kotlin.daemon.KotlinCompileDaemon --daemon-runFilesPath C:\Users\I\AppData\Local\kotlin\daemon --daemon-autoshutdownIdleSeconds=7200 --daemon-compilerClasspath D:\Devel\.gradle\caches\modules-2\files-2.1\org.jetbrains.kotlin\kotlin-compiler-embeddable\1.3.10\adc9e577de39fba3db6d60662892118afedd713\kotlin-compiler-embeddable-1.3.10.jar;D:\Devel\.gradle\caches\modules-2\files-2.1\org.jetbrains.kotlin\kotlin-reflect\1.3.10\dd02865be0351707554b16a896b766b2396cdafa\kotlin-reflect-1.3.10.jar;D:\Devel\.gradle\caches\modules-2\files-2.1\org.jetbrains.kotlin\kotlin-stdlib\1.3.10\b178c1501609c6e4ee8be635513cb023a466457d\kotlin-stdlib-1.3.10.jar;D:\Devel\.gradle\caches\modules-2\files-2.1\org.jetbrains.kotlin\kotlin-script-runtime\1.3.10\1d2bac36f99b84e1493244f12629bc0756a3ff90\kotlin-script-runtime-1.3.10.jar;D:\Devel\.gradle\caches\modules-2\files-2.1\org.jetbrains.kotlin\kotlin-stdlib-common\1.3.10\1b19d99229dcedad7caf50534dce38fe82845269\kotlin-stdlib-common-1.3.10.jar;D:\Devel\.gradle\caches\modules-2\files-2.1\org.jetbrains\annotations\13.0\919f0dfe192fb4e063e7dacadee7f8bb9a2672a9\annotations-13.0.jar;C:\Program Files\Java\openjdk1.8.0_202\lib\tools.jar
  22:58:33.515 [INFO] [org.gradle.api.Task] i: Received the message signalling that the daemon is ready
  22:58:33.516 [INFO] [org.gradle.api.Task] i: new daemon started, trying to find it
  22:58:33.516 [INFO] [org.gradle.api.Task] i: found daemon on port 17519 (277256 ms old), trying to connect
  22:58:33.516 [INFO] [org.gradle.api.Task] i: cannot connect to registry: Connection refused: connect
  22:58:33.516 [INFO] [org.gradle.api.Task] i: found fresh run file 'C:\Users\I\AppData\Local\kotlin\daemon\kotlin-daemon.2019-01-06T19-23-50.118Z.ef9f56f7564e12d191d0ba8e50b581f8.17519.run' (277256 ms old), but no daemon, ignoring it
  22:58:33.516 [INFO] [org.gradle.api.Task] i: found daemon on port 17502 (70469 ms old), trying to connect
  22:58:33.516 [INFO] [org.gradle.api.Task] i: cannot connect to registry: Connection refused: connect
  22:58:33.516 [INFO] [org.gradle.api.Task] i: found fresh run file 'C:\Users\I\AppData\Local\kotlin\daemon\kotlin-daemon.2019-01-06T19-27-16.900Z.ef9f56f7564e12d191d0ba8e50b581f8.17502.run' (70469 ms old), but no daemon, ignoring it
  22:58:33.516 [INFO] [org.gradle.api.Task] i: found daemon on port 17507 (70 ms old), trying to connect
  22:58:33.516 [INFO] [org.gradle.api.Task] i: connected to the daemon
  22:58:33.518 [INFO] [org.gradle.api.Project] Options for KOTLIN DAEMON: IncrementalCompilationOptions(super=CompilationOptions(compilerMode=INCREMENTAL_COMPILER, targetPlatform=JVM, reportCategories=[0, 1, 2, 3, 4], reportSeverity=3, requestedCompilationResults=[0]), areFileChangesKnown=true, modifiedFiles=[D:\Devel\IdeaProjects\GradleKotlinJVM\src\main\kotlin\Main.kt], deletedFiles=[], workingDir=D:\Devel\IdeaProjects\GradleKotlinJVM\build\kotlin\compileKotlin, customCacheVersionFileName='gradle-format-version.txt', customCacheVersion=4, multiModuleICSettings=MultiModuleICSettings(buildHistoryFile=D:\Devel\IdeaProjects\GradleKotlinJVM\build\kotlin\compileKotlin\build-history.bin, useModuleDetection=false), usePreciseJavaTracking=truelocalStateDirs=[D:\Devel\IdeaProjects\GradleKotlinJVM\build\classes\kotlin\main])
  22:58:33.524 [DEBUG] [sun.rmi.transport.tcp] Daemon worker: reuse connection
  ...
  22:58:35.428 [DEBUG] [org.gradle.api.Project] [KOTLIN] [IC] compiling with args: [-Xadd-compiler-builtins, -Xbuild-file=C:\Users\I\AppData\Local\Temp\kjps6683894818132820708GradleKotlinJVM.script.xml, -classpath, D:\Devel\IdeaProjects\GradleKotlinJVM\build\classes\kotlin\main;D:\Devel\.gradle\caches\modules-2\files-2.1\org.jetbrains.kotlin\kotlin-stdlib-jdk8\1.3.10\71d0fa967493eb76648b575edf1762cb2d0c7f10\kotlin-stdlib-jdk8-1.3.10.jar;D:\Devel\.gradle\caches\modules-2\files-2.1\org.jetbrains.kotlin\kotlin-stdlib-jdk7\1.3.10\4d147bf43060dc43d61b096e24da1e67dfe0c032\kotlin-stdlib-jdk7-1.3.10.jar;D:\Devel\.gradle\caches\modules-2\files-2.1\org.jetbrains.kotlin\kotlin-stdlib\1.3.10\b178c1501609c6e4ee8be635513cb023a466457d\kotlin-stdlib-1.3.10.jar;D:\Devel\.gradle\caches\modules-2\files-2.1\org.jetbrains.kotlin\kotlin-stdlib-common\1.3.10\1b19d99229dcedad7caf50534dce38fe82845269\kotlin-stdlib-common-1.3.10.jar;D:\Devel\.gradle\caches\modules-2\files-2.1\org.jetbrains\annotations\13.0\919f0dfe192fb4e063e7dacadee7f8bb9a2672a9\annotations-13.0.jar, -jvm-target, 1.8, -Xload-builtins-from-dependencies, -module-name, GradleKotlinJVM, -no-reflect, -no-stdlib, -Xplugin=D:\Devel\.gradle\caches\modules-2\files-2.1\org.jetbrains.kotlin\kotlin-scripting-compiler-embeddable\1.3.10\e96a6125793c4ab0258119fcdce9d182f42d32b0\kotlin-scripting-compiler-embeddable-1.3.10.jar, -Xreport-output-files, -verbose]
  ...
  11:01:53 PM: Task execution finished 'compileKotlin --debug'.
  </code></pre>
  
  <p><strong>II.</strong> When using <strong>JDK 11</strong> as Gradle's JVM (<strong><em>Problem here</em></strong>):</p>
  
  <pre><code>11:01:44 PM: Executing task 'compileKotlin --debug'...
  ...
  23:01:45.888 [DEBUG] [org.gradle.api.Project] [KOTLIN] Kotlin compiler args: -Xadd-compiler-builtins -Xbuild-file=C:\Users\I\AppData\Local\Temp\kjps11452575260818015211GradleKotlinJVM.script.xml -classpath D:\Devel\.gradle\caches\modules-2\files-2.1\org.jetbrains.kotlin\kotlin-stdlib-jdk8\1.3.10\71d0fa967493eb76648b575edf1762cb2d0c7f10\kotlin-stdlib-jdk8-1.3.10.jar;D:\Devel\.gradle\caches\modules-2\files-2.1\org.jetbrains.kotlin\kotlin-stdlib-jdk7\1.3.10\4d147bf43060dc43d61b096e24da1e67dfe0c032\kotlin-stdlib-jdk7-1.3.10.jar;D:\Devel\.gradle\caches\modules-2\files-2.1\org.jetbrains.kotlin\kotlin-stdlib\1.3.10\b178c1501609c6e4ee8be635513cb023a466457d\kotlin-stdlib-1.3.10.jar;D:\Devel\.gradle\caches\modules-2\files-2.1\org.jetbrains.kotlin\kotlin-stdlib-common\1.3.10\1b19d99229dcedad7caf50534dce38fe82845269\kotlin-stdlib-common-1.3.10.jar;D:\Devel\.gradle\caches\modules-2\files-2.1\org.jetbrains\annotations\13.0\919f0dfe192fb4e063e7dacadee7f8bb9a2672a9\annotations-13.0.jar -d D:\Devel\IdeaProjects\GradleKotlinJVM\build\classes\kotlin\main -jvm-target 1.8 -Xload-builtins-from-dependencies -module-name GradleKotlinJVM -no-reflect -no-stdlib -Xplugin=D:\Devel\.gradle\caches\modules-2\files-2.1\org.jetbrains.kotlin\kotlin-scripting-compiler-embeddable\1.3.10\e96a6125793c4ab0258119fcdce9d182f42d32b0\kotlin-scripting-compiler-embeddable-1.3.10.jar -verbose
  ...
  23:01:48.134 [INFO] [org.gradle.api.Task] i: starting the daemon as: C:\Program Files\Java\openjdk-11.0.1\bin\java -cp D:\Devel\.gradle\caches\modules-2\files-2.1\org.jetbrains.kotlin\kotlin-compiler-embeddable\1.3.10\adc9e577de39fba3db6d60662892118afedd713\kotlin-compiler-embeddable-1.3.10.jar;D:\Devel\.gradle\caches\modules-2\files-2.1\org.jetbrains.kotlin\kotlin-reflect\1.3.10\dd02865be0351707554b16a896b766b2396cdafa\kotlin-reflect-1.3.10.jar;D:\Devel\.gradle\caches\modules-2\files-2.1\org.jetbrains.kotlin\kotlin-stdlib\1.3.10\b178c1501609c6e4ee8be635513cb023a466457d\kotlin-stdlib-1.3.10.jar;D:\Devel\.gradle\caches\modules-2\files-2.1\org.jetbrains.kotlin\kotlin-script-runtime\1.3.10\1d2bac36f99b84e1493244f12629bc0756a3ff90\kotlin-script-runtime-1.3.10.jar;D:\Devel\.gradle\caches\modules-2\files-2.1\org.jetbrains.kotlin\kotlin-stdlib-common\1.3.10\1b19d99229dcedad7caf50534dce38fe82845269\kotlin-stdlib-common-1.3.10.jar;D:\Devel\.gradle\caches\modules-2\files-2.1\org.jetbrains\annotations\13.0\919f0dfe192fb4e063e7dacadee7f8bb9a2672a9\annotations-13.0.jar -Djava.awt.headless=true -Djava.rmi.server.hostname=127.0.0.1 -Xmx1536m -XX:MaxPermSize=512m -Dkotlin.environment.keepalive org.jetbrains.kotlin.daemon.KotlinCompileDaemon --daemon-runFilesPath C:\Users\I\AppData\Local\kotlin\daemon --daemon-autoshutdownIdleSeconds=7200 --daemon-compilerClasspath D:\Devel\.gradle\caches\modules-2\files-2.1\org.jetbrains.kotlin\kotlin-compiler-embeddable\1.3.10\adc9e577de39fba3db6d60662892118afedd713\kotlin-compiler-embeddable-1.3.10.jar;D:\Devel\.gradle\caches\modules-2\files-2.1\org.jetbrains.kotlin\kotlin-reflect\1.3.10\dd02865be0351707554b16a896b766b2396cdafa\kotlin-reflect-1.3.10.jar;D:\Devel\.gradle\caches\modules-2\files-2.1\org.jetbrains.kotlin\kotlin-stdlib\1.3.10\b178c1501609c6e4ee8be635513cb023a466457d\kotlin-stdlib-1.3.10.jar;D:\Devel\.gradle\caches\modules-2\files-2.1\org.jetbrains.kotlin\kotlin-script-runtime\1.3.10\1d2bac36f99b84e1493244f12629bc0756a3ff90\kotlin-script-runtime-1.3.10.jar;D:\Devel\.gradle\caches\modules-2\files-2.1\org.jetbrains.kotlin\kotlin-stdlib-common\1.3.10\1b19d99229dcedad7caf50534dce38fe82845269\kotlin-stdlib-common-1.3.10.jar;D:\Devel\.gradle\caches\modules-2\files-2.1\org.jetbrains\annotations\13.0\919f0dfe192fb4e063e7dacadee7f8bb9a2672a9\annotations-13.0.jar
  23:01:48.134 [INFO] [org.gradle.api.Task] i: [daemon] OpenJDK 64-Bit Server VM warning: Ignoring option MaxPermSize; support was removed in 8.0
  23:01:48.134 [INFO] [org.gradle.api.Task] i: Received the message signalling that the daemon is ready
  23:01:48.134 [INFO] [org.gradle.api.Task] i: new daemon started, trying to find it
  23:01:48.134 [INFO] [org.gradle.api.Task] i: starting the daemon as: C:\Program Files\Java\openjdk-11.0.1\bin\java -cp D:\Devel\.gradle\caches\modules-2\files-2.1\org.jetbrains.kotlin\kotlin-compiler-embeddable\1.3.10\adc9e577de39fba3db6d60662892118afedd713\kotlin-compiler-embeddable-1.3.10.jar;D:\Devel\.gradle\caches\modules-2\files-2.1\org.jetbrains.kotlin\kotlin-reflect\1.3.10\dd02865be0351707554b16a896b766b2396cdafa\kotlin-reflect-1.3.10.jar;D:\Devel\.gradle\caches\modules-2\files-2.1\org.jetbrains.kotlin\kotlin-stdlib\1.3.10\b178c1501609c6e4ee8be635513cb023a466457d\kotlin-stdlib-1.3.10.jar;D:\Devel\.gradle\caches\modules-2\files-2.1\org.jetbrains.kotlin\kotlin-script-runtime\1.3.10\1d2bac36f99b84e1493244f12629bc0756a3ff90\kotlin-script-runtime-1.3.10.jar;D:\Devel\.gradle\caches\modules-2\files-2.1\org.jetbrains.kotlin\kotlin-stdlib-common\1.3.10\1b19d99229dcedad7caf50534dce38fe82845269\kotlin-stdlib-common-1.3.10.jar;D:\Devel\.gradle\caches\modules-2\files-2.1\org.jetbrains\annotations\13.0\919f0dfe192fb4e063e7dacadee7f8bb9a2672a9\annotations-13.0.jar -Djava.awt.headless=true -Djava.rmi.server.hostname=127.0.0.1 -Xmx1536m -XX:MaxPermSize=512m -Dkotlin.environment.keepalive org.jetbrains.kotlin.daemon.KotlinCompileDaemon --daemon-runFilesPath C:\Users\I\AppData\Local\kotlin\daemon --daemon-autoshutdownIdleSeconds=7200 --daemon-compilerClasspath D:\Devel\.gradle\caches\modules-2\files-2.1\org.jetbrains.kotlin\kotlin-compiler-embeddable\1.3.10\adc9e577de39fba3db6d60662892118afedd713\kotlin-compiler-embeddable-1.3.10.jar;D:\Devel\.gradle\caches\modules-2\files-2.1\org.jetbrains.kotlin\kotlin-reflect\1.3.10\dd02865be0351707554b16a896b766b2396cdafa\kotlin-reflect-1.3.10.jar;D:\Devel\.gradle\caches\modules-2\files-2.1\org.jetbrains.kotlin\kotlin-stdlib\1.3.10\b178c1501609c6e4ee8be635513cb023a466457d\kotlin-stdlib-1.3.10.jar;D:\Devel\.gradle\caches\modules-2\files-2.1\org.jetbrains.kotlin\kotlin-script-runtime\1.3.10\1d2bac36f99b84e1493244f12629bc0756a3ff90\kotlin-script-runtime-1.3.10.jar;D:\Devel\.gradle\caches\modules-2\files-2.1\org.jetbrains.kotlin\kotlin-stdlib-common\1.3.10\1b19d99229dcedad7caf50534dce38fe82845269\kotlin-stdlib-common-1.3.10.jar;D:\Devel\.gradle\caches\modules-2\files-2.1\org.jetbrains\annotations\13.0\919f0dfe192fb4e063e7dacadee7f8bb9a2672a9\annotations-13.0.jar
  23:01:48.134 [INFO] [org.gradle.api.Task] i: [daemon] OpenJDK 64-Bit Server VM warning: Ignoring option MaxPermSize; support was removed in 8.0
  23:01:48.134 [INFO] [org.gradle.api.Task] i: Received the message signalling that the daemon is ready
  23:01:48.134 [INFO] [org.gradle.api.Task] i: new daemon started, trying to find it
  23:01:48.137 [WARN] [org.gradle.api.Project] Could not perform incremental compilation: Could not connect to Kotlin compile daemon
  23:01:48.137 [WARN] [org.gradle.api.Project] Could not connect to kotlin daemon. Using fallback strategy.
  23:01:49.486 [LIFECYCLE] [system.err] 
  23:01:49.486 [ERROR] [system.err] logging: using Kotlin home directory &lt;no_path&gt;
  23:01:49.521 [ERROR] [system.err] logging: configuring the compilation environment
  23:01:50.538 [ERROR] [system.err] logging: loading modules: [java.se, jdk.accessibility, jdk.attach, jdk.compiler, jdk.dynalink, jdk.httpserver, jdk.jartool, jdk.javadoc, jdk.jconsole, jdk.jdi, jdk.jfr, jdk.jshell, jdk.jsobject, jdk.management, jdk.management.jfr, jdk.net, jdk.scripting.nashorn, jdk.sctp, jdk.security.auth, jdk.security.jgss, jdk.unsupported, jdk.unsupported.desktop, jdk.xml.dom, java.base, java.compiler, java.datatransfer, java.desktop, java.xml, java.instrument, java.logging, java.management, java.management.rmi, java.rmi, java.naming, java.net.http, java.prefs, java.scripting, java.security.jgss, java.security.sasl, java.sql, java.transaction.xa, java.sql.rowset, java.xml.crypto, jdk.internal.jvmstat, jdk.management.agent, jdk.jdwp.agent, jdk.internal.ed, jdk.internal.le, jdk.internal.opt]
  23:01:53.459 [ERROR] [system.err] warning: the '-d' option with a directory destination is ignored because '-Xbuild-file' is specified
  ...
  11:01:53 PM: Task execution finished 'compileKotlin --debug'.
  </code></pre>
  
  <p><strong>III.</strong> When using <strong>JDK 11</strong> as Gradle's JVM, but on <strong>Linux</strong> (<em>OK</em>):</p>
  
  <pre><code>$ ./gradlew compileKotlin --debug
  ...
  01:33:20.145 [INFO] [org.gradle.api.Task] i: starting the daemon as: /usr/local/jdk-11.0.1/bin/java -cp /usr/share/nginx/html/0xy/.gradle/caches/modules-2/files-2.1/org.jetbrains.kotlin/kotlin-compiler-embeddable/1.3.10/adc9e577de39fba3db6d60662892118afedd713/kotlin-compiler-embeddable-1.3.10.jar:/usr/share/nginx/html/0xy/.gradle/caches/modules-2/files-2.1/org.jetbrains.kotlin/kotlin-reflect/1.3.10/dd02865be0351707554b16a896b766b2396cdafa/kotlin-reflect-1.3.10.jar:/usr/share/nginx/html/0xy/.gradle/caches/modules-2/files-2.1/org.jetbrains.kotlin/kotlin-stdlib/1.3.10/b178c1501609c6e4ee8be635513cb023a466457d/kotlin-stdlib-1.3.10.jar:/usr/share/nginx/html/0xy/.gradle/caches/modules-2/files-2.1/org.jetbrains.kotlin/kotlin-script-runtime/1.3.10/1d2bac36f99b84e1493244f12629bc0756a3ff90/kotlin-script-runtime-1.3.10.jar:/usr/share/nginx/html/0xy/.gradle/caches/modules-2/files-2.1/org.jetbrains.kotlin/kotlin-stdlib-common/1.3.10/1b19d99229dcedad7caf50534dce38fe82845269/kotlin-stdlib-common-1.3.10.jar:/usr/share/nginx/html/0xy/.gradle/caches/modules-2/files-2.1/org.jetbrains/annotations/13.0/919f0dfe192fb4e063e7dacadee7f8bb9a2672a9/annotations-13.0.jar -Djava.awt.headless=true -Djava.rmi.server.hostname=127.0.0.1 -Xmx1536m -XX:MaxPermSize=512m -Dkotlin.environment.keepalive org.jetbrains.kotlin.daemon.KotlinCompileDaemon --daemon-runFilesPath /usr/share/nginx/html/0xy/.kotlin/daemon --daemon-autoshutdownIdleSeconds=7200 --daemon-compilerClasspath /usr/share/nginx/html/0xy/.gradle/caches/modules-2/files-2.1/org.jetbrains.kotlin/kotlin-compiler-embeddable/1.3.10/adc9e577de39fba3db6d60662892118afedd713/kotlin-compiler-embeddable-1.3.10.jar:/usr/share/nginx/html/0xy/.gradle/caches/modules-2/files-2.1/org.jetbrains.kotlin/kotlin-reflect/1.3.10/dd02865be0351707554b16a896b766b2396cdafa/kotlin-reflect-1.3.10.jar:/usr/share/nginx/html/0xy/.gradle/caches/modules-2/files-2.1/org.jetbrains.kotlin/kotlin-stdlib/1.3.10/b178c1501609c6e4ee8be635513cb023a466457d/kotlin-stdlib-1.3.10.jar:/usr/share/nginx/html/0xy/.gradle/caches/modules-2/files-2.1/org.jetbrains.kotlin/kotlin-script-runtime/1.3.10/1d2bac36f99b84e1493244f12629bc0756a3ff90/kotlin-script-runtime-1.3.10.jar:/usr/share/nginx/html/0xy/.gradle/caches/modules-2/files-2.1/org.jetbrains.kotlin/kotlin-stdlib-common/1.3.10/1b19d99229dcedad7caf50534dce38fe82845269/kotlin-stdlib-common-1.3.10.jar:/usr/share/nginx/html/0xy/.gradle/caches/modules-2/files-2.1/org.jetbrains/annotations/13.0/919f0dfe192fb4e063e7dacadee7f8bb9a2672a9/annotations-13.0.jar
  01:33:20.145 [INFO] [org.gradle.api.Task] i: [daemon] OpenJDK 64-Bit Server VM warning: Ignoring option MaxPermSize; support was removed in 8.0
  01:33:20.145 [INFO] [org.gradle.api.Task] i: Received the message signalling that the daemon is ready
  01:33:20.145 [INFO] [org.gradle.api.Task] i: new daemon started, trying to find it
  01:33:20.145 [INFO] [org.gradle.api.Task] i: found daemon on port 17613 (56 ms old), trying to connect
  01:33:20.145 [INFO] [org.gradle.api.Task] i: connected to the daemon
  01:33:20.145 [INFO] [org.gradle.api.Project] Options for KOTLIN DAEMON: IncrementalCompilationOptions(super=CompilationOptions(compilerMode=INCREMENTAL_COMPILER, targetPlatform=JVM, reportCategories=[0, 1, 2, 3, 4], reportSeverity=3, requestedCompilationResults=[0]), areFileChangesKnown=false, modifiedFiles=null, deletedFiles=null, workingDir=/usr/share/nginx/html/0xy/test/build/kotlin/compileKotlin, customCacheVersionFileName='gradle-format-version.txt', customCacheVersion=4, multiModuleICSettings=MultiModuleICSettings(buildHistoryFile=/usr/share/nginx/html/0xy/test/build/kotlin/compileKotlin/build-history.bin, useModuleDetection=false), usePreciseJavaTracking=truelocalStateDirs=[/usr/share/nginx/html/0xy/test/build/classes/kotlin/main])
  ...
  01:33:21.920 [DEBUG] [org.gradle.api.Project] [KOTLIN] [IC] compiling with args: [-Xadd-compiler-builtins, -Xbuild-file=/tmp/kjps15100965302804914597GradleKotlinJVM.script.xml, -classpath, /usr/share/nginx/html/0xy/.gradle/caches/modules-2/files-2.1/org.jetbrains.kotlin/kotlin-stdlib-jdk8/1.3.10/71d0fa967493eb76648b575edf1762cb2d0c7f10/kotlin-stdlib-jdk8-1.3.10.jar:/usr/share/nginx/html/0xy/.gradle/caches/modules-2/files-2.1/org.jetbrains.kotlin/kotlin-stdlib-jdk7/1.3.10/4d147bf43060dc43d61b096e24da1e67dfe0c032/kotlin-stdlib-jdk7-1.3.10.jar:/usr/share/nginx/html/0xy/.gradle/caches/modules-2/files-2.1/org.jetbrains.kotlin/kotlin-stdlib/1.3.10/b178c1501609c6e4ee8be635513cb023a466457d/kotlin-stdlib-1.3.10.jar:/usr/share/nginx/html/0xy/.gradle/caches/modules-2/files-2.1/org.jetbrains.kotlin/kotlin-stdlib-common/1.3.10/1b19d99229dcedad7caf50534dce38fe82845269/kotlin-stdlib-common-1.3.10.jar:/usr/share/nginx/html/0xy/.gradle/caches/modules-2/files-2.1/org.jetbrains/annotations/13.0/919f0dfe192fb4e063e7dacadee7f8bb9a2672a9/annotations-13.0.jar, -jvm-target, 1.8, -Xload-builtins-from-dependencies, -module-name, GradleKotlinJVM, -no-reflect, -no-stdlib, -Xplugin=/usr/share/nginx/html/0xy/.gradle/caches/modules-2/files-2.1/org.jetbrains.kotlin/kotlin-scripting-compiler-embeddable/1.3.10/e96a6125793c4ab0258119fcdce9d182f42d32b0/kotlin-scripting-compiler-embeddable-1.3.10.jar, -Xreport-output-files, -verbose]
  ...
  </code></pre>
  
  <p>There are some suspected events in the above logs (second), but I can't exactly understand the meaning of them and that they are related to my problem or not: </p>
  
  <ol>
  <li>Why two (exactly equal) tries has occurred to start <em>Kotlin compile daemon</em>?</li>
  <li>There are some errors. But they are all after warnings about Kotlin's daemon problem.</li>
  <li><p>The latest error/warning:</p>
  
  <pre><code>[ERROR] [system.err] warning: the '-d' option with a directory destination is ignored because '-Xbuild-file' is specified
  </code></pre>
  
  <p>is the most suspected thing! Because it's the only message you can't find in other logs. Also see <a href="https://github.com/arturbosch/detekt/issues/1230" rel="noreferrer">here</a>. I asked about it in <a href="https://stackoverflow.com/questions/54067016/gradle-compilekotlin-task-warning-the-d-option-with-a-directory-destinatio">another post</a>.</p></li>
  </ol>