If you encounter a problem, let us know by reporting a bug. We greatly appreciate your bug reports, which help us to make Android Studio better. For details of bugs fixed in each preview release, see previous entries on this blog. Issue #151317169: Missing nullability annotations on bind and inflate fields / return typesįor information on new features and changes in all preview builds of Android Studio 4.0, see the Android Studio Preview release notes.Issue #140955511: View binding build fail: Unresolved reference.

Issue #150274427: RET should be handled by the ASM jsr inliner.

Issue #151649643: coreLibraryDesugaringEnabled = true leads to ClassNotFoundException on debug builds.

Issue #150583984: ApkProvisionException: No outputs for the main artifact of variant: debug.

Issue #144274828: 'Build resource' action runs JPS builder in Android Studio.

Issue #150198810: Bug: false positive error of version check.

Issue #151409564: Lint fails to detect MotionLayout Constraints.

Issue #151964515: Endless loop when displaying JavaDoc for styles with cycles.

Issue #149891395: Kapt-generated files not recognized in IDE as sources.

Issue #151207121: Many warnings when using desugared library.

Issue #151969439: R8 raise NullException while perform :app:dexBuilderDebugAndroidTest.

Issue #150325708: Build Flavour resets itself to default each time I restart Android Studio.

Issue #152428342: Build seems to be stuck.

Issue #146869072: Task failed on mergeExtDex.

Issue #146165298: Android library projects should only apply multidex to androidTestImplementation.

Issue #147535554: Core library desugaring not applied to instrumentation tests.

This update also includes fixes for the following public issues:

Android studio beta version download