here is screenshot 我尝试过使用最新的gradle版本和 我还将最新的android studio版本更新为2.2，但是在构建项目时一次又一次地发生错误，请建议我。
Executing tasks: [clean, :app:generateDebugSources, :app:generateDebugAndroidTestSources, :app:mockableAndroidJar, :app:prepareDebugUnitTestDependencies]
Configuration on demand is an incubating feature.
Incremental java compilation is an incubating feature.
:clean UP-TO-DATE
:app:clean
:app:preBuild UP-TO-DATE
:app:preDebugBuild UP-TO-DATE
:app:checkDebugManifest
:app:preReleaseBuild UP-TO-DATE
:app:prepareComAndroidSupportAnimatedVectorDrawable2421Library
:app:prepareComAndroidSupportAppcompatV72421Library
:app:prepareComAndroidSupportSupportCompat2421Library
:app:prepareComAndroidSupportSupportCoreUi2421Library
:app:prepareComAndroidSupportSupportCoreUtils2421Library
:app:prepareComAndroidSupportSupportFragment2421Library
:app:prepareComAndroidSupportSupportMediaCompat2421Library
:app:prepareComAndroidSupportSupportV42421Library
:app:prepareComAndroidSupportSupportVectorDrawable2421Library
:app:prepareDebugDependencies
:app:compileDebugAidl
:app:compileDebugRenderscript
:app:generateDebugBuildConfig
:app:generateDebugResValues
:app:generateDebugResources
:app:mergeDebugResources
AAPT err(Facade for 445014223): D:\projects\Intent2\app\build\intermediates\res\merged\debug\drawable-xxhdpi-v4\abc_ic_menu_selectall_mtrl_alpha.png ERROR: Unable to open PNG file
AAPT err(Facade for 445014223): D:\projects\Intent2\app\build\intermediates\res\merged\debug\drawable-xxhdpi-v4\abc_list_selector_disabled_holo_light.9.png ERROR: Unable to open PNG file
AAPT err(Facade for 445014223): D:\projects\Intent2\app\build\intermediates\res\merged\debug\drawable-mdpi-v4\abc_menu_hardkey_panel_mtrl_mult.9.png ERROR: Unable to open PNG file
AAPT err(Facade for 445014223): D:\projects\Intent2\app\build\intermediates\res\merged\debug\drawable-xxxhdpi-v4\abc_spinner_mtrl_am_alpha.9.png ERROR: Unable to open PNG file
AAPT err(Facade for 445014223): D:\projects\Intent2\app\build\intermediates\res\merged\debug\drawable-xxxhdpi-v4\abc_ic_star_half_black_36dp.png ERROR: Unable to open PNG file
AAPT err(Facade for 445014223): D:\projects\Intent2\app\build\intermediates\res\merged\debug\drawable-hdpi-v4\abc_ic_star_black_36dp.png ERROR: Unable to open PNG file
AAPT err(Facade for 445014223): D:\projects\Intent2\app\build\intermediates\res\merged\debug\drawable-hdpi-v4\abc_ic_commit_search_api_mtrl_alpha.png ERROR: Unable to open PNG file
AAPT err(Facade for 445014223): D:\projects\Intent2\app\build\intermediates\res\merged\debug\drawable-mdpi-v4\abc_text_select_handle_middle_mtrl_dark.png ERROR: Unable to open PNG file
AAPT err(Facade for 445014223): D:\projects\Intent2\app\build\intermediates\res\merged\debug\drawable-xhdpi-v4\abc_text_select_handle_left_mtrl_light.png ERROR: Unable to open PNG file
AAPT err(Facade for 445014223): D:\projects\Intent2\app\build\intermediates\res\merged\debug\drawable-ldrtl-hdpi-v17\abc_spinner_mtrl_am_alpha.9.png ERROR: Unable to open PNG file
AAPT err(Facade for 445014223): D:\projects\Intent2\app\build\intermediates\res\merged\debug\drawable-xxhdpi-v4\abc_text_select_handle_left_mtrl_light.png ERROR: Unable to open PNG file
AAPT err(Facade for 445014223): D:\projects\Intent2\app\build\intermediates\res\merged\debug\drawable-mdpi-v4\abc_list_pressed_holo_dark.9.png ERROR: Unable to open PNG file
AAPT err(Facade for 445014223): D:\projects\Intent2\app\build\intermediates\res\merged\debug\drawable-xxhdpi-v4\abc_ic_star_half_black_36dp.png ERROR: Unable to open PNG file
AAPT err(Facade for 445014223): D:\projects\Intent2\app\build\intermediates\res\merged\debug\drawable-xxhdpi-v4\abc_list_focused_holo.9.png ERROR: Unable to open PNG file
AAPT err(Facade for 445014223): D:\projects\Intent2\app\build\intermediates\res\merged\debug\drawable-xxhdpi-v4\abc_btn_switch_to_on_mtrl_00001.9.png ERROR: Unable to open PNG file
AAPT err(Facade for 445014223): D:\projects\Intent2\app\build\intermediates\res\merged\debug\drawable-xxxhdpi-v4\abc_ic_star_black_36dp.png ERROR: Unable to open PNG file
AAPT err(Facade for 445014223): D:\projects\Intent2\app\build\intermediates\res\merged\debug\drawable-xhdpi-v4\abc_ic_menu_copy_mtrl_am_alpha.png ERROR: Unable to open PNG file
Error: java.lang.RuntimeException: Some file crunching failed, see logs for details
:app:mergeDebugResources FAILED
FAILURE: Build failed with an exception.
* What went wrong:
Execution failed for task ':app:mergeDebugResources'.
> Error: java.lang.RuntimeException: Some file crunching failed, see logs for details
* Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output.
BUILD FAILED
答案 0 :(得分：0)
这是因为在drawable中添加了一个像（.jpg）这样的扩展名并且您已将其更改或保存为.png格式的图像（在不使用编辑器工具的情况下手动更改图像格式时会发生此错误） 。 Android Studio在使用AAPT（Android资产包装工具）编译资源包时会抛出错误，因此您只需使用一些图像编辑器工具（如“gimp或paint”）来相应地保存扩展。一切都完成后重建您的项目。
例如：在绘制工具中打开图片（拖放图片以将其打开） - ＆gt;档案 - ＆gt;另存为＆gt;保存为Type-＆gt; 从下拉列表中选择所需类型