title: Android Error Building Signed APK: keystore.jks not found for signing config 'externalOverride'
body: <p>I get this error when I try to Build Signed APK.  I recently upgraded to API 23 but Generated APK:s successfully after that. Im confused. Asking for help and advise how to solve this problem. Here's the error</p>
  
  <pre><code>FAILURE: Build failed with an exception.
  
  * What went wrong:
  Execution failed for task ':app:validateExternalOverrideSigning'.
  &gt; Keystore file /Users/me/Desktop/final apps/keystore.jks not 
  found for signing config 'externalOverride'.
  
  * Try:
  Run with --stacktrace option to get the stack trace. Run with --info or --  
  debug option to get more log output.
  </code></pre>
  
  <p>And the log</p>
  
  <pre><code>Information:Gradle tasks [:app:assembleRelease]
  :app:preBuild UP-TO-DATE
  :app:preReleaseBuild UP-TO-DATE
  :app:checkReleaseManifest
  :app:preDebugBuild UP-TO-DATE
  :app:prepareComAndroidSupportAppcompatV72311Library UP-TO-DATE
  :app:prepareComAndroidSupportSupportV42311Library UP-TO-DATE
  :app:prepareComGoogleAndroidGmsPlayServicesAppindexing810Library UP-TO-DATE
  :app:prepareComGoogleAndroidGmsPlayServicesBasement810Library UP-TO-DATE
  :app:prepareReleaseDependencies
  :app:compileReleaseAidl UP-TO-DATE
  :app:compileReleaseRenderscript UP-TO-DATE
  :app:generateReleaseBuildConfig UP-TO-DATE
  :app:generateReleaseAssets UP-TO-DATE
  :app:mergeReleaseAssets UP-TO-DATE
  :app:generateReleaseResValues UP-TO-DATE
  :app:generateReleaseResources UP-TO-DATE
  :app:mergeReleaseResources UP-TO-DATE
  :app:processReleaseManifest UP-TO-DATE
  :app:processReleaseResources UP-TO-DATE
  :app:generateReleaseSources UP-TO-DATE
  :app:compileReleaseJavaWithJavac
  Note: Some input files use or override a deprecated API.
  Note: Recompile with -Xlint:deprecation for details.
  :app:compileReleaseNdk UP-TO-DATE
  :app:compileReleaseSources
  :app:lintVitalRelease
  :app:transformClassesWithDexForRelease
  :app:mergeReleaseJniLibFolders
  :app:transformNative_libsWithMergeJniLibsForRelease
  :app:processReleaseJavaRes UP-TO-DATE
  :app:transformResourcesWithMergeJavaResForRelease
  :app:validateExternalOverrideSigning FAILED
  Error:Execution failed for task ':app:validateExternalOverrideSigning'.
  &gt; Keystore file /Users/me/Desktop/final apps/keystore.jks not found for
  signing config 'externalOverride'. 
  </code></pre>
  
  <p>Here is my Gradle</p>
  
  <pre><code>apply plugin: 'com.android.application'
  
  android {
  compileSdkVersion 23
  buildToolsVersion "23.0.2"
  
  
  defaultConfig {
      applicationId "com.waffles.vatsandbats"
      minSdkVersion 14
      targetSdkVersion 23
  }
  
  buildTypes {
      release {
          minifyEnabled false
           proguardFiles getDefaultProguardFile('proguard-android.txt'),
  'proguard-rules.txt'     
      }
  }
  }
  
  dependencies {
  
  compile files('libs/acra-4.7.0-javadoc.jar')
  compile files('libs/acra-4.7.0-sources.jar')
  compile files('libs/acra-4.7.0.jar')
  compile 'com.google.android.gms:play-services-appindexing:8.1.0'
  compile files('libs/activation.jar')
  compile files('libs/mail.jar')
  compile files('libs/additionnal.jar')
  compile 'com.android.support:support-v4:23.1.1'
  compile 'com.android.support:appcompat-v7:23.1.1'
  
  
  }
  </code></pre>