E/MethodChannel#samples.flutter.dev/battery( 9049): Failed to handle method call E/MethodChannel#samples.flutter.dev/battery( 9049): java.lang.NullPointerException: Attempt to invoke virtual method 'boolean android.content.Context.isUiContext()' on a null object reference E/MethodChannel#samples.flu...
Process:com.lwp.justtest,PID:17152java.lang.RuntimeException:Unableto instantiate activity ComponentInfo{com.lwp.justtest/com.lwp.justtest.next}:java.lang.NullPointerException:Attemptto invokevirtualmethod'int android.content.Intent.getIntExtra(java.lang.String, int)'on anullobjectreference at android....
Here is a system based on the Android platform, which throws theNullPointerExceptionwith theattempt to invoke virtual method on a null object referencedescription. This example has three different Java classes. Main_Player.java: packagedelftstack;importjavax.naming.Context;publicclassMain_Player{private...
java.lang.NullPointerException: Attempt to invoke virtual method 'int android.view.View.getImportant,程序员大本营,技术文章内容聚合第一站。
AF_CALLBACK_CHANNEL); mCallbackChannel.setMethodCallHandler(callbacksHandler); }If we try to get it from the application, we get the following error:Attempt to invoke virtual method 'void android.content.Context.sendBroadcast(android.content.Intent)' on a null object reference ...
做了一个listview,安卓一直报错Attempttoinvokevirtualmethod‘voidandroid.widget.ListView.setAdapter(android.widget.ListAdapter)’ on a null object reference 最后才发现是在mainactivity里忘了调用初始化。 Android- XML 生成失败android.view.InflateException: Binary XML file line #28: Binary XML file inflating...
at org.springframework.test.context.junit4.SpringJUnit4ClassRunner$1.runReflectiveCall(SpringJUnit4ClassRunner.java:251)at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.methodBlock(SpringJUnit4ClassRunner...
Error log to show any unexpected error that occurred during executing deploy step TypeScript 复制 errorLog: string Property Value string hasStarted Specifies whether deployment has started or not. TypeScript 复制 hasStarted: boolean Property Value boolean ...
public static Object coerceToObject(Object pValue, Class pClass, Logger pLogger) throws ELException { if (pValue == null) { return null; } if (pClass.isAssignableFrom(pValue.getClass())) { return pValue; } if ((pValue instanceof String)) { ...
I am getting "java.lang.NullPointerException: Attempt to invoke interface method 'java.util.Iterator java.util.List.iterator()' on a null object reference" error and I am having trouble solving the issue. Can somebody help me? this is the error ...