The following classes could not be instantiated: - android.support.v7.widget.Toolbar

本文解决了一个关于Android支持库v7中的Widget无法实例化的问题。通过详细的步骤和代码示例,帮助开发者理解并修复该错误,确保应用程序正常运行。

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06-05 05:19:55.434 8556 8556 D AndroidRuntime: Shutting down VM 06-05 05:19:55.437 8556 8556 E AndroidRuntime: FATAL EXCEPTION: main 06-05 05:19:55.437 8556 8556 E AndroidRuntime: Process: com.avatr.commonservice, PID: 8556 06-05 05:19:55.437 8556 8556 E AndroidRuntime: java.util.ServiceConfigurationError: com.avatr.common.base.modules.BusinessInterface: Provider com.avatr.commonservice.updatecountry.UpdateCountryManager could not be instantiated 06-05 05:19:55.437 8556 8556 E AndroidRuntime: at java.util.ServiceLoader.fail(ServiceLoader.java:233) 06-05 05:19:55.437 8556 8556 E AndroidRuntime: at java.util.ServiceLoader.-$$Nest$smfail(Unknown Source:0) 06-05 05:19:55.437 8556 8556 E AndroidRuntime: at java.util.ServiceLoader$LazyIterator.nextService(ServiceLoader.java:392) 06-05 05:19:55.437 8556 8556 E AndroidRuntime: at java.util.ServiceLoader$LazyIterator.next(ServiceLoader.java:416) 06-05 05:19:55.437 8556 8556 E AndroidRuntime: at java.util.ServiceLoader$1.next(ServiceLoader.java:494) 06-05 05:19:55.437 8556 8556 E AndroidRuntime: at com.avatr.common.base.BusinessImplClassFactory.next(BusinessImplClassFactory.java:41) 06-05 05:19:55.437 8556 8556 E AndroidRuntime: at com.avatr.common.base.modules.ModulesManaer.initModule(ModulesManaer.java:37) 06-05 05:19:55.437 8556 8556 E AndroidRuntime: at com.avatr.common.base.ComService.onCreate(ComService.java:39) 06-05 05:19:55.437 8556 8556 E AndroidRuntime: at android.app.ActivityThread.handleCreateService(ActivityThread.java:4736) 06-05 05:19:55.437 8556 8556 E AndroidRuntime: at android.app.ActivityThread.-$$Nest$mhandleCreateService(Unknown Source:0) 06-05 05:19:55.437 8556 8556 E AndroidRuntime: at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2333) 06-05 05:19:55.437 8556 8556 E AndroidRuntime: at android.os.Handler.dispatchMessage(Handler.java:106) 06-05 05:19:55.437 8556 8556 E AndroidRuntime: at android.os.Looper.loopOnce(Looper.java:218) 06-05 05:19:55.437 8556 8556 E AndroidRuntime: at android.os.Looper.loop(Looper.java:307) 06-05 05:19:55.437 8556 8556 E AndroidRuntime: at android.app.ActivityThread.main(ActivityThread.java:8309) 06-05 05:19:55.437 8556 8556 E AndroidRuntime: at java.lang.reflect.Method.invoke(Native Method) 06-05 05:19:55.437 8556 8556 E AndroidRuntime: at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:573) 06-05 05:19:55.437 8556 8556 E AndroidRuntime: at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1049) 06-05 05:19:55.437 8556 8556 E AndroidRuntime: Caused by: java.lang.IllegalAccessException: void com.avatr.commonservice.updatecountry.UpdateCountryManager.<init>() is not accessible from java.lang.Class<java.util.ServiceLoader$LazyIterator> 06-05 05:19:55.437 8556 8556 E AndroidRuntime: at java.lang.Class.newInstance(Native Method) 06-05 05:19:55.437 8556 8556 E AndroidRuntime: at java.util.ServiceLoader$LazyIterator.nextService(ServiceLoader.java:388) 06-05 05:19:55.437 8556 8556 E AndroidRuntime: ... 15 more
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