title: gradlew build freezing at mergeDebugResources
body: <p>I build debug app use gradlew as in google tutorial <a href="https://developer.android.com/training/basics/firstapp/running-app.html" rel="noreferrer">https://developer.android.com/training/basics/firstapp/running-app.html</a></p>
  
  <p>I was created project use</p>
  
  <pre><code>android create project --target 2 -g -v 2.9--name myAppName --path ./MyAppDirectory --activity MyActivity --package com.mypackage
  </code></pre>
  
  <p>and this is my build.gradle file</p>
  
  <pre><code>buildscript {
  repositories {
      mavenCentral()
  }
  dependencies {
      classpath 'com.android.tools.build:gradle:1.5.0'
  }
  }
  
  apply plugin: 'android'
  
  android {
      compileSdkVersion 'Google Inc.:Google APIs:23'
      buildToolsVersion '23.0.2'
  
  buildTypes {
      release {
          //runProguard false
            //minifyEnabled true
          proguardFile getDefaultProguardFile('proguard-android.txt')
      }
  }
  }
  </code></pre>
  
  <p>I build debug app use command</p>
  
  <pre><code>$ ./gradlew assembleDebug
  </code></pre>
  
  <p>and building is freezing at 40% as</p>
  
  <pre><code>    :preBuild UP-TO-DATE
  :preDebugBuild UP-TO-DATE
  :checkDebugManifest
  :prepareDebugDependencies
  :compileDebugAidl UP-TO-DATE
  :compileDebugRenderscript UP-TO-DATE
  :generateDebugBuildConfig UP-TO-DATE
  :generateDebugAssets UP-TO-DATE
  :mergeDebugAssets UP-TO-DATE
  :generateDebugResValues UP-TO-DATE
  :generateDebugResources UP-TO-DATE
  :mergeDebugResources
  java.io.IOException: Cannot run program "/home/kanoonsantikul/android-sdk-linux/build-tools/23.0.2/aapt": error=2, No such file or directory
      at java.lang.ProcessBuilder.start(ProcessBuilder.java:1047)
      at com.android.builder.png.AaptProcess$Builder.start(AaptProcess.java:163)
      at com.android.builder.png.QueuedCruncher$1.creation(QueuedCruncher.java:106)
      at com.android.builder.tasks.WorkQueue.run(WorkQueue.java:203)
      at java.lang.Thread.run(Thread.java:745)
  Caused by: java.io.IOException: error=2, No such file or directory
      at java.lang.UNIXProcess.forkAndExec(Native Method)
      at java.lang.UNIXProcess.&lt;init&gt;(UNIXProcess.java:187)
      at java.lang.ProcessImpl.start(ProcessImpl.java:130)
      at java.lang.ProcessBuilder.start(ProcessBuilder.java:1028)
      ... 4 more
  java.io.IOException: Cannot run program "/home/kanoonsantikul/android-sdk-linux/build-tools/23.0.2/aapt": error=2, No such file or directory
      at java.lang.ProcessBuilder.start(ProcessBuilder.java:1047)
      at com.android.builder.png.AaptProcess$Builder.start(AaptProcess.java:163)
      at com.android.builder.png.QueuedCruncher$1.creation(QueuedCruncher.java:106)
      at com.android.builder.tasks.WorkQueue.run(WorkQueue.java:203)
      at java.lang.Thread.run(Thread.java:745)
  Caused by: java.io.IOException: error=2, No such file or directory
      at java.lang.UNIXProcess.forkAndExec(Native Method)
      at java.lang.UNIXProcess.&lt;init&gt;(UNIXProcess.java:187)
  Thread(png-cruncher_5) has a null payload
      at java.lang.ProcessImpl.start(ProcessImpl.java:130)
      at java.lang.ProcessBuilder.start(ProcessBuilder.java:1028)
      ... 4 more
  Thread(png-cruncher_3) has a null payload
  java.io.IOException: Cannot run program "/home/kanoonsantikul/android-sdk-linux/build-tools/23.0.2/aapt": error=2, No such file or directory
      at java.lang.ProcessBuilder.start(ProcessBuilder.java:1047)
      at com.android.builder.png.AaptProcess$Builder.start(AaptProcess.java:163)
      at com.android.builder.png.QueuedCruncher$1.creation(QueuedCruncher.java:106)
      at com.android.builder.tasks.WorkQueue.run(WorkQueue.java:203)
      at java.lang.Thread.run(Thread.java:745)
  Caused by: java.io.IOException: error=2, No such file or directory
      at java.lang.UNIXProcess.forkAndExec(Native Method)
      at java.lang.UNIXProcess.&lt;init&gt;(UNIXProcess.java:187)
      at java.lang.ProcessImpl.start(ProcessImpl.java:130)
      at java.lang.ProcessBuilder.start(ProcessBuilder.java:1028)
      ... 4 more
  Thread(png-cruncher_2) has a null payload
  java.io.IOException: Cannot run program "/home/kanoonsantikul/android-sdk-linux/build-tools/23.0.2/aapt": error=2, No such file or directory
      at java.lang.ProcessBuilder.start(ProcessBuilder.java:1047)
      at com.android.builder.png.AaptProcess$Builder.start(AaptProcess.java:163)
      at com.android.builder.png.QueuedCruncher$1.creation(QueuedCruncher.java:106)
      at com.android.builder.tasks.WorkQueue.run(WorkQueue.java:203)
      at java.lang.Thread.run(Thread.java:745)
  Caused by: java.io.IOException: error=2, No such file or directory
      at java.lang.UNIXProcess.forkAndExec(Native Method)
      at java.lang.UNIXProcess.&lt;init&gt;(UNIXProcess.java:187)
      at java.lang.ProcessImpl.start(ProcessImpl.java:130)
      at java.lang.ProcessBuilder.start(ProcessBuilder.java:1028)
      ... 4 more
  Thread(png-cruncher_1) has a null payload
  java.io.IOException: Cannot run program "/home/kanoonsantikul/android-sdk-linux/build-tools/23.0.2/aapt": error=2, No such file or directory
      at java.lang.ProcessBuilder.start(ProcessBuilder.java:1047)
      at com.android.builder.png.AaptProcess$Builder.start(AaptProcess.java:163)
      at com.android.builder.png.QueuedCruncher$1.creation(QueuedCruncher.java:106)
      at com.android.builder.tasks.WorkQueue.run(WorkQueue.java:203)
      at java.lang.Thread.run(Thread.java:745)
  Caused by: java.io.IOException: error=2, No such file or directory
      at java.lang.UNIXProcess.forkAndExec(Native Method)
      at java.lang.UNIXProcess.&lt;init&gt;(UNIXProcess.java:187)
      at java.lang.ProcessImpl.start(ProcessImpl.java:130)
      at java.lang.ProcessBuilder.start(ProcessBuilder.java:1028)
      ... 4 more
  &gt; Building 40% &gt; :mergeDebugResources
  </code></pre>
  
  <p>`</p>