I recently decided to switch from Eclipse to Android Studio. I imported a project I was working on and am now getting this error when I try to run the project. Gradle: Execution failed for task ':project:dexDebug'. > Could not call IncrementalTask.taskAction() on task ':project:dexDebug' I've been cruising this site for 2 days now and trying different suggestions to no avail. I did run gradlew compileDebug --stacktrace and this is what I got: C:\Users\adam\AndroidStudioProjects\projectProject>gradlew compileDebug --stacktrace Relying on packaging to define the extension of the main artifact has been deprecated and is scheduled to be removed in Gradle 2.0 :project:preBuild UP-TO-DATE :project:preDebugBuild UP-TO-DATE :project:preReleaseBuild UP-TO-DATE :project:prepareComAndroidSupportAppcompatV71800Library UP-TO-DATE :project:prepareComGoogleAndroidGmsPlayServices3225Library UP-TO-DATE :project:prepareDebugDependencies :project:compileDebugAidl UP-TO-DATE :project:compileDebugRenderscript UP-TO-DATE :project:generateDebugBuildConfig UP-TO-DATE :project:mergeDebugAssets UP-TO-DATE :project:mergeDebugResources UP-TO-DATE :project:processDebugManifest UP-TO-DATE :project:processDebugResources UP-TO-DATE :project:generateDebugSources UP-TO-DATE :project:compileDebug UP-TO-DATE BUILD SUCCESSFUL Total time: 10.459 secs However I am still getting that error when I try to actually run the project. Here is my build.gradle (i do have a 'libs' folder in my project with all the jars for a google maps/places app): buildscript { repositories { mavenCentral() } dependencies { classpath 'com.android.tools.build:gradle:0.6.+' } } apply plugin: 'android' repositories { mavenCentral() } android { compileSdkVersion 18 buildToolsVersion "18.1.1" defaultConfig { minSdkVersion 8 targetSdkVersion 18 } } dependencies { compile fileTree(dir: 'libs') compile 'com.google.android.gms:play-services:3.2.25' compile 'com.android.support:support-v4:18.0.0' compile 'com.android.support:appcompat-v7:+' } and my settings.gradle: include ':project', ':project:libs:android-support-v4', ':project:libs:google-api-client-1.10.3-beta', ':project:libs:google-api-client-android2-1.10.3-beta', ':project:libs:google-http-client-1.10.3-beta', ':project:libs:google-http-client-android2-1.10.3-beta', ':project:libs:google-oauth-client-1.10.1-beta', ':project:libs:gson-2.1', ':project:libs:guava-11.0.1', ':project:libs:jackson-core-asl-1.9.4', ':project:libs:jsr305-1.3.9', ':project:libs:protobuf-java-2.2.0', ':project:libs:GoogleAdMobAdsSdk-6.4.1' As I said, I've tried pretty much everything I have read on here about this error and am having no luck. Any help would be greatly appreciated.