XWalkWebViewEngine is no't abstract.

[zhougonglai]

I don't know what happened, just in this happens today.!

[fujunwei]

Please update cordova crosswalk plugin

[zhougonglai]

Really useful!

[TrueGeek]

I'm getting this error but I'm already at version 2.0.0. Is there anything else that can be tried?

[TrueGeek]

Okay, got it working. Adding and removing the plugin (via the command line) gave me the same v2.0.0.

But if did these steps I got version 2.2.0:

• Removed the plugin via the command line
• Removed references to the plugin manually from config.xml and plugins/android.json
• Removed the android platform
• Readded the adroid platform
• Readded the plugin via the command line

[cadesalaberry]

For reference (and google indexing), here is the full build log before the crash I got:

cordova-custom-config: Skipping auto-restore of config file backup(s)
cordova-custom-config: Applied custom config from config.xml to /home/cadesalaberry/Apps/Cordova/customization/platforms/android/AndroidManifest.xml
ANDROID_HOME=/home/cadesalaberry/Android/Sdk
JAVA_HOME=/usr/java/latest
Reading build config file: /home/cadesalaberry/Apps/Cordova/customization/build.json
Subproject Path: CordovaLib
null
org.xwalk:xwalk_core_library:20+
Incremental java compilation is an incubating feature.
:preBuild UP-TO-DATE
:preDebugBuild UP-TO-DATE
:checkDebugManifest
:CordovaLib:preBuild UP-TO-DATE
:CordovaLib:preDebugBuild UP-TO-DATE
:CordovaLib:checkDebugManifest
:CordovaLib:prepareDebugDependencies
:CordovaLib:compileDebugAidl
:CordovaLib:compileDebugNdk UP-TO-DATE
:CordovaLib:compileLint
:CordovaLib:copyDebugLint UP-TO-DATE
:CordovaLib:mergeDebugShaders
:CordovaLib:compileDebugShaders
:CordovaLib:generateDebugAssets
:CordovaLib:mergeDebugAssets
:CordovaLib:mergeDebugProguardFiles UP-TO-DATE
:CordovaLib:packageDebugRenderscript UP-TO-DATE
:CordovaLib:compileDebugRenderscript
:CordovaLib:generateDebugResValues
:CordovaLib:generateDebugResources
:CordovaLib:packageDebugResources
:CordovaLib:processDebugManifest
:CordovaLib:generateDebugBuildConfig
:CordovaLib:processDebugResources
:CordovaLib:generateDebugSources
:CordovaLib:incrementalDebugJavaCompilationSafeguard
:CordovaLib:compileDebugJavaWithJavac
:CordovaLib:compileDebugJavaWithJavac - is not incremental (e.g. outputs have changed, no previous execution, etc.).
Note: Some input files use or override a deprecated API.
Note: Recompile with -Xlint:deprecation for details.
:CordovaLib:processDebugJavaRes UP-TO-DATE
:CordovaLib:transformResourcesWithMergeJavaResForDebug
:CordovaLib:transformClassesAndResourcesWithSyncLibJarsForDebug
:CordovaLib:mergeDebugJniLibFolders
:CordovaLib:transformNative_libsWithMergeJniLibsForDebug
:CordovaLib:transformNative_libsWithSyncJniLibsForDebug
:CordovaLib:bundleDebug
:prepareAndroidCordovaLibUnspecifiedDebugLibrary
:preReleaseBuild UP-TO-DATE
:CordovaLib:preReleaseBuild UP-TO-DATE
:CordovaLib:checkReleaseManifest
:CordovaLib:prepareReleaseDependencies
:CordovaLib:compileReleaseAidl
:CordovaLib:compileReleaseNdk UP-TO-DATE
:CordovaLib:copyReleaseLint UP-TO-DATE
:CordovaLib:mergeReleaseShaders
:CordovaLib:compileReleaseShaders
:CordovaLib:generateReleaseAssets
:CordovaLib:mergeReleaseAssets
:CordovaLib:mergeReleaseProguardFiles UP-TO-DATE
:CordovaLib:packageReleaseRenderscript UP-TO-DATE
:CordovaLib:compileReleaseRenderscript
:CordovaLib:generateReleaseResValues
:CordovaLib:generateReleaseResources
:CordovaLib:packageReleaseResources
:CordovaLib:processReleaseManifest
:CordovaLib:generateReleaseBuildConfig
:CordovaLib:processReleaseResources
:CordovaLib:generateReleaseSources
:CordovaLib:incrementalReleaseJavaCompilationSafeguard
:CordovaLib:compileReleaseJavaWithJavac
:CordovaLib:compileReleaseJavaWithJavac - is not incremental (e.g. outputs have changed, no previous execution, etc.).
Note: Some input files use or override a deprecated API.
Note: Recompile with -Xlint:deprecation for details.
:CordovaLib:processReleaseJavaRes UP-TO-DATE
:CordovaLib:transformResourcesWithMergeJavaResForRelease
:CordovaLib:transformClassesAndResourcesWithSyncLibJarsForRelease
:CordovaLib:mergeReleaseJniLibFolders
:CordovaLib:transformNative_libsWithMergeJniLibsForRelease
:CordovaLib:transformNative_libsWithSyncJniLibsForRelease
:CordovaLib:bundleRelease
:prepareComAndroidSupportSupportCompat2501Library
:prepareComAndroidSupportSupportCoreUi2501Library
:prepareComAndroidSupportSupportCoreUtils2501Library
:prepareComAndroidSupportSupportFragment2501Library
:prepareComAndroidSupportSupportMediaCompat2501Library
:prepareComAndroidSupportSupportV132340Library
:prepareComAndroidSupportSupportV42501Library
:prepareComCrashlyticsSdkAndroidAnswers136Library
:prepareComCrashlyticsSdkAndroidBeta114Library
:prepareComCrashlyticsSdkAndroidCrashlytics255Library
:prepareComCrashlyticsSdkAndroidCrashlyticsCore238Library
:prepareComGoogleAndroidGmsPlayServicesBase980Library
:prepareComGoogleAndroidGmsPlayServicesBasement980Library
:prepareComGoogleAndroidGmsPlayServicesGcm980Library
:prepareComGoogleAndroidGmsPlayServicesIid980Library
:prepareComGoogleAndroidGmsPlayServicesTasks980Library
:prepareIoFabricSdkAndroidFabric1310Library
:prepareMeLeolinShortcutBadger114Library
:prepareOrgXwalkXwalk_core_library205053312Library
:prepareDebugDependencies
:compileDebugAidl
:compileDebugRenderscript
:generateDebugBuildConfig
:mergeDebugShaders
:compileDebugShaders
:generateDebugAssets
:mergeDebugAssets
:createXwalkCommandLineFileDebug
:processDebugManifest
:fabricGenerateResourcesDebug
:generateDebugResValues
:generateDebugResources
:mergeDebugResources
:processDebugResources
:generateDebugSources
:incrementalDebugJavaCompilationSafeguard
:compileDebugJavaWithJavac
:compileDebugJavaWithJavac - is not incremental (e.g. outputs have changed, no previous execution, etc.).
/home/cadesalaberry/Apps/Cordova/customization/platforms/android/src/org/crosswalk/engine/XWalkWebViewEngine.java:55: error: XWalkWebViewEngine is not abstract and does not override abstract method evaluateJavascript(String,ValueCallback<String>) in CordovaWebViewEngine
public class XWalkWebViewEngine implements CordovaWebViewEngine {
       ^
Note: Some input files use or override a deprecated API.
Note: Recompile with -Xlint:deprecation for details.
Note: Some input files use unchecked or unsafe operations.
Note: Recompile with -Xlint:unchecked for details.
1 error
:compileDebugJavaWithJavac FAILED

BUILD FAILED

FAILURE: Build failed with an exception.

* What went wrong:
Execution failed for task ':compileDebugJavaWithJavac'.
> Compilation failed; see the compiler error output for details.

* Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output.

Total time: 54.364 secs
Error: /home/cadesalaberry/Apps/Cordova/customization/platforms/android/gradlew: Command failed with exit code 1 Error output:
Note: Some input files use or override a deprecated API.
Note: Recompile with -Xlint:deprecation for details.
Note: Some input files use or override a deprecated API.
Note: Recompile with -Xlint:deprecation for details.
/home/cadesalaberry/Apps/Cordova/customization/platforms/android/src/org/crosswalk/engine/XWalkWebViewEngine.java:55: error: XWalkWebViewEngine is not abstract and does not override abstract method evaluateJavascript(String,ValueCallback<String>) in CordovaWebViewEngine
public class XWalkWebViewEngine implements CordovaWebViewEngine {
       ^
Note: Some input files use or override a deprecated API.
Note: Recompile with -Xlint:deprecation for details.
Note: Some input files use unchecked or unsafe operations.
Note: Recompile with -Xlint:unchecked for details.
1 error

FAILURE: Build failed with an exception.

* What went wrong:
Execution failed for task ':compileDebugJavaWithJavac'.
> Compilation failed; see the compiler error output for details.

* Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output.