这是我得到的输出
ionic cordova build android --stacktrace
> cordova build android
✖ Running command - failed!
[ERROR] Cordova encountered an error.
You may get more insight by running the Cordova command above directly.
[ERROR] An error occurred while running cordova build android (exit code 1):
(truncated) ... ld UP-TO-DATE
:CordovaLib:compileReleaseNdk UP-TO-DATE
:CordovaLib:copyReleaseLint UP-TO-DATE
:CordovaLib:mergeReleaseProguardFiles UP-TO-DATE
:CordovaLib:packageReleaseRenderscript UP-TO-DATE
:CordovaLib:checkReleaseManifest
:CordovaLib:prepareReleaseDependencies
:CordovaLib:compileReleaseRenderscript UP-TO-DATE
:CordovaLib:generateReleaseResValues UP-TO-DATE
:CordovaLib:generateReleaseResources UP-TO-DATE
:CordovaLib:packageReleaseResources UP-TO-DATE
:CordovaLib:compileReleaseAidl UP-TO-DATE
:CordovaLib:generateReleaseBuildConfig UP-TO-DATE
:CordovaLib:mergeReleaseShaders UP-TO-DATE
:CordovaLib:compileReleaseShaders UP-TO-DATE
:CordovaLib:generateReleaseAssets UP-TO-DATE
:CordovaLib:mergeReleaseAssets UP-TO-DATE
:CordovaLib:processReleaseManifest UP-TO-DATE
:CordovaLib:processReleaseResources UP-TO-DATE
:CordovaLib:generateReleaseSources UP-TO-DATE
:CordovaLib:incrementalReleaseJavaCompilationSafeguard UP-TO-DATE
:CordovaLib:compileReleaseJavaWithJavac UP-TO-DATE
:CordovaLib:processReleaseJavaRes UP-TO-DATE
:CordovaLib:transformResourcesWithMergeJavaResForRelease UP-TO-DATE
:CordovaLib:transformClassesAndResourcesWithSyncLibJarsForRelease UP-TO-DATE
:CordovaLib:mergeReleaseJniLibFolders UP-TO-DATE
:CordovaLib:transformNative_libsWithMergeJniLibsForRelease UP-TO-DATE
:CordovaLib:transformNative_libsWithSyncJniLibsForRelease UP-TO-DATE
:CordovaLib:bundleRelease UP-TO-DATE
:prepareComAndroidSupportSupportCompat2600Alpha1Library UP-TO-DATE
:prepareComAndroidSupportSupportCoreUi2600Alpha1Library UP-TO-DATE
:prepareComAndroidSupportSupportCoreUtils2600Alpha1Library UP-TO-DATE
:prepareComAndroidSupportSupportFragment2600Alpha1Library UP-TO-DATE
:prepareComAndroidSupportSupportMediaCompat2600Alpha1Library UP-TO-DATE
:prepareComAndroidSupportSupportV42600Alpha1Library UP-TO-DATE
:prepareComGoogleAndroidGmsPlayServicesAds1026Library UP-TO-DATE
:prepareComGoogleAndroidGmsPlayServicesAdsLite1026Library UP-TO-DATE
:prepareComGoogleAndroidGmsPlayServicesBase1026Library UP-TO-DATE
:prepareComGoogleAndroidGmsPlayServicesBasement1026Library UP-TO-DATE
:prepareComGoogleAndroidGmsPlayServicesClearcut1026Library UP-TO-DATE
:prepareComGoogleAndroidGmsPlayServicesGass1026Library UP-TO-DATE
:prepareComGoogleAndroidGmsPlayServicesTasks1026Library UP-TO-DATE
:prepareOrgXwalkXwalk_core_library22525614Library UP-TO-DATE
:prepareArmv7DebugDependencies
:compileArmv7DebugAidl UP-TO-DATE
:compileArmv7DebugRenderscript
:generateArmv7DebugBuildConfig UP-TO-DATE
:mergeArmv7DebugShaders UP-TO-DATE
:compileArmv7DebugShaders UP-TO-DATE
:generateArmv7DebugAssets UP-TO-DATE
:mergeArmv7DebugAssets UP-TO-DATE
:createXwalkCommandLineFileArmv7Debug
:generateArmv7DebugResValues UP-TO-DATE
:generateArmv7DebugResources
:mergeArmv7DebugResources
:processArmv7DebugManifest
:processArmv7DebugResources
:generateArmv7DebugSources
:incrementalArmv7DebugJavaCompilationSafeguard UP-TO-DATE
:compileArmv7DebugJavaWithJavac UP-TO-DATE
:compileArmv7DebugNdk UP-TO-DATE
:compileArmv7DebugSources UP-TO-DATE
:prePackageMarkerForArmv7Debug
:transformClassesWithDexForArmv7Debug UP-TO-DATE
:mergeArmv7DebugJniLibFolders UP-TO-DATE
:transformNative_libsWithMergeJniLibsForArmv7Debug UP-TO-DATE
:processArmv7DebugJavaRes UP-TO-DATE
:transformResourcesWithMergeJavaResForArmv7Debug FAILED
BUILD FAILED
Total time: 40.152 secs
FAILURE: Build failed with an exception.
* What went wrong:
Execution failed for task ':transformResourcesWithMergeJavaResForArmv7Debug'.
> com.android.build.api.transform.TransformException: com.android.builder.packaging.DuplicateFileException: Duplicate files copied in APK META-INF/maven/com.squareup.okhttp3/okhttp/pom.properties
File1: C:\Users\A2\.gradle\caches\modules-2\files-2.1\com.squareup.okhttp3\okhttp\3.8.0\5a11f020cce2d11eb71ba916700600e18c4547e7\okhttp-3.8.0.jar
File2: C:\Users\A2\Desktop\posApAp\posApp\platforms\android\build\intermediates\exploded-aar\com.google.android.gms\play-services-basement\10.2.6\jars\classes.jar
* Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output.
Error: cmd: Command failed with exit code 1 Error output:
FAILURE: Build failed with an exception.
* What went wrong:
Execution failed for task ':transformResourcesWithMergeJavaResForArmv7Debug'.
> com.android.build.api.transform.TransformException: com.android.builder.packaging.DuplicateFileException: Duplicate files copied in APK META-INF/maven/com.squareup.okhttp3/okhttp/pom.properties
File1: C:\Users\A2\.gradle\caches\modules-2\files-2.1\com.squareup.okhttp3\okhttp\3.8.0\5a11f020cce2d11eb71ba916700600e18c4547e7\okhttp-3.8.0.jar
File2: C:\Users\A2\Desktop\posApAp\posApp\platforms\android\build\intermediates\exploded-aar\com.google.android.gms\play-services-basement\10.2.6\jars\classes.jar
* Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output.
有人可以告诉我如何解决这个问题吗？谢谢。 它表示复制了Duplicate类。如何解决这个问题。我尝试在build.gradle中排除，但它没有帮助。
答案 0 :(得分：0)
我在构建应用时遇到了同样的问题，我通过
解决了这个问题使用正确的命令
删除平台 ionic cordova platform remove android（如果您使用的是最新的CLI）
然后再次添加android平台并构建它。
如果它仍然不起作用，请尝试将nodejs降级到以前的版本并构建。
答案 1 :(得分：0)
解决了这个问题。 我需要排除META-INF