Flutter v1.7.8+hotfix.4 报 Didn't find class "android.support.v4.content.ContextCompat"

[danieldai]

在基于Flutter v1.7.8+hotfix.4的Android app 中使用此插件报如下错误：

W/AppMonitor(30945): load ut_c_api.so failed W/LoginSDK(30945): ************************************ W/LoginSDK(30945): Debug is enabled, make sure to turn it off in the production environment W/LoginSDK(30945): ************************************ I/mtopsdk.SDKConfig(30945): [setGlobalAppVersion]set appVersion=3.1.1.210 D/mtopsdk.Mtop(30945): [init] ttid=null I/mtopsdk.MtopSDK(30945): [init]ttid=null W/SharedPreferencesImpl(30945): getSharedPreferences W/SharedPreferencesImpl(30945): org.xmlpull.v1.XmlPullParserException: Unexpected end of document W/SharedPreferencesImpl(30945): at com.android.internal.util.XmlUtils.readValueXml(XmlUtils.java:1408) W/SharedPreferencesImpl(30945): at com.android.internal.util.XmlUtils.readMapXml(XmlUtils.java:740) W/SharedPreferencesImpl(30945): at android.app.SharedPreferencesImpl.loadFromDisk(SharedPreferencesImpl.java:166) W/SharedPreferencesImpl(30945): at android.app.SharedPreferencesImpl.-wrap1(Unknown Source:0) W/SharedPreferencesImpl(30945): at android.app.SharedPreferencesImpl$1.run(SharedPreferencesImpl.java:136) I/mtopsdk.MtopSDK(30945): [init]MtopSDK init Called I/mtopsdk.MtopSDK(30945): [executeInitCoreTask]MtopSDK initcore start. ttid=null D/mtopsdk.AsyncServiceBinder(30945): [asyncBind]try to bind service for a W/mtopsdk.AsyncServiceBinder(30945): [asyncBind]service framework not exist. use intent to bind service. D/mtopsdk.AsyncServiceBinder(30945): [asyncBind]bindService ret=false D/mtopsdk.SecuritySignImpl(30945): [init]SecuritySignImpl ISign init.set GlobalAppKey=27827092 D/mtopsdk.SecuritySignImpl(30945): [init]SecuritySignImpl ISign init succeed.init time=1 I/mtopsdk.XState(30945): [setValue]Attention :User XState Local Mode: key:appKey value:27827092 I/mtopsdk.MtopSDK(30945): [executeInitCoreTask]MtopSDK initcore end I/mtopsdk.MtopSDK(30945): [executeInitExtraTask]MtopSDK initextra start I/mtopsdk.MtopSDK(30945): [executeInitExtraTask]MtopSDK initextra end E/AuthSDK_kernel(30945): timeStamp=1566912868000 E/AuthSDK_kernel(30945): time =2019-08-28 09:58:27 216 D/AuthSDK_(30945): sdk version = 1.4.3 D/AuthSDK_(30945): time =2019-08-28 09:58:27 219 E/AuthSDK_(30945): utdid = WMaJZJcFmD8DAAF0YR0d/dw6 E/AuthSDK_(30945): time =2019-08-28 09:58:27 223 D/AuthSDK_kernel(30945): registerRpc D/AuthSDK_kernel(30945): time =2019-08-28 09:58:27 228 D/mtopsdk.TBSdkLog(30945): [setTLogEnabled] tLogEnabled=false D/mtopsdk.TBSdkLog(30945): [setPrintLog] printLog=true I/mtopsdk.SDKConfig(30945): [setGlobalAppVersion]set appVersion=1.0.0 D/AuthSDK_kernel(30945): registerStorage D/AuthSDK_kernel(30945): time =2019-08-28 09:58:27 235 D/AuthSDK_kernel(30945): registerUserTrack D/AuthSDK_kernel(30945): time =2019-08-28 09:58:27 240 E/AndroidRuntime(30945): FATAL EXCEPTION: SDK Looper Thread E/AndroidRuntime(30945): Process: com.mianjiajia.smile_weather, PID: 30945 E/AndroidRuntime(30945): java.lang.NoClassDefFoundError: Failed resolution of: Landroid/support/v4/content/ContextCompat; E/AndroidRuntime(30945): at com.alimama.tunion.utils.TUnionPhoneInfoUtils.(TUnionPhoneInfoUtils.java:154) E/AndroidRuntime(30945): at com.alimama.tunion.utils.TUnionPhoneInfoUtils.getInstance(TUnionPhoneInfoUtils.java:48) E/AndroidRuntime(30945): at com.alimama.tunion.trade.net.TUnionNetworkRequest.a(TUnionNetworkRequest.java:76) E/AndroidRuntime(30945): at com.alimama.tunion.trade.net.TUnionNetworkRequest.createABTestRequest(TUnionNetworkRequest.java:113) E/AndroidRuntime(30945): at com.alimama.tunion.trade.abtest.TUnionABTestService.a(TUnionABTestService.java:184) E/AndroidRuntime(30945): at com.alimama.tunion.trade.abtest.TUnionABTestService.b(TUnionABTestService.java:238) E/AndroidRuntime(30945): at com.alimama.tunion.trade.abtest.TUnionABTestService.startInitialFetch(TUnionABTestService.java:244) E/AndroidRuntime(30945): at com.alimama.tunion.trade.TUnionTradeSDK.register(TUnionTradeSDK.java:151) E/AndroidRuntime(30945): at com.alibaba.baichuan.trade.biz.core.taoke.AlibcAidCompoment.init(Unknown Source:34) E/AndroidRuntime(30945): at com.alibaba.baichuan.trade.biz.AlibcMiniTradeBiz.init(Unknown Source:73) E/AndroidRuntime(30945): at com.alibaba.baichuan.trade.biz.AlibcTradeBiz.init(Unknown Source:26) E/AndroidRuntime(30945): at com.alibaba.baichuan.android.trade.AlibcTradeSDK.b(Unknown Source:3) E/AndroidRuntime(30945): at com.alibaba.baichuan.android.trade.AlibcTradeSDK.a(Unknown Source:0) E/AndroidRuntime(30945): at com.alibaba.baichuan.android.trade.f.run(Unknown Source:4) E/AndroidRuntime(30945): at android.os.Handler.handleCallback(Handler.java:808) E/AndroidRuntime(30945): at android.os.Handler.dispatchMessage(Handler.java:101) E/AndroidRuntime(30945): at android.os.Looper.loop(Looper.java:166) E/AndroidRuntime(30945): at android.os.HandlerThread.run(HandlerThread.java:65) E/AndroidRuntime(30945): Caused by: java.lang.ClassNotFoundException: Didn't find class "android.support.v4.content.ContextCompat" on path: DexPathList[[zip file "/system/framework/android.test.runner.jar", zip file "/data/app/com.mianjiajia.smile_weather-VNZjxvIBdH8F-EZkXEBODA==/base.apk"],nativeLibraryDirectories=[/data/app/com.mianjiajia.smile_weather-VNZjxvIBdH8F-EZkXEBODA==/lib/arm64, /data/app/com.mianjiajia.smile_weather-VNZjxvIBdH8F-EZkXEBODA==/base.apk!/lib/arm64-v8a, /system/lib64, /vendor/lib64, /product/lib64]] E/AndroidRuntime(30945): at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:93) E/AndroidRuntime(30945): at java.lang.ClassLoader.loadClass(ClassLoader.java:379) E/AndroidRuntime(30945): at java.lang.ClassLoader.loadClass(ClassLoader.java:312) E/AndroidRuntime(30945): ... 18 more D/AuthSDK_kernel(30945): register login service D/AuthSDK_kernel(30945): time =2019-08-28 09:58:27 295 D/AuthSDK_Member.LoginLifecycleAdapter(30945): LoginLifecycle init D/AuthSDK_Member.LoginLifecycleAdapter(30945): time =2019-08-28 09:58:27 299 D/AuthSDK_kernel(30945): register account link service D/AuthSDK_kernel(30945): time =2019-08-28 09:58:27 312 D/AuthSDK_Member.AccountLinkLifecycleAdapter(30945): AccountLinkLifecycleAdapter init D/AuthSDK_Member.AccountLinkLifecycleAdapter(30945): time =2019-08-28 09:58:27 316 D/AuthSDK_syncRun(30945): INIT SUCCESS D/AuthSDK_syncRun(30945): time =2019-08-28 09:58:27 321 D/AuthSDK_asyncRun(30945): SUCCESS D/AuthSDK_asyncRun(30945): time =2019-08-28 09:58:27 325 I/Process (30945): Sending signal. PID: 30945 SIG: 9 Lost connection to device.

[JarvanMo]

你用了androidx?

[danieldai]

@JarvanMo 我没有针对Androidx特别配置，可能是自动启动了AndroidX

[JarvanMo]

具体我也不清楚。

[danieldai]

我使用 Android Studio 打开flutter app的Android功能，然后执行 Migrate to AndroidX 现在工作正常了