ChangeTextBehaviorTest fails

Hello,
I am running ChangeTextBehaviorTest on an emulator and a real device, but it fails with:

> java.lang.NullPointerException: Attempt to invoke virtual method 'void android.support.test.uiautomator.UiObject2.setText(java.lang.String)' on a null object reference
> at com.example.android.testing.uiautomator.BasicSample.ChangeTextBehaviorTest.testChangeText_newActivity(ChangeTextBehaviorTest.java:104)
> at java.lang.reflect.Method.invoke(Native Method)
> at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50)
> at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
> at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47)
> at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
> at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:26)
> at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325)
> at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:78)
> at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:57)
> at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)
> at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)
> at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)
> at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58)
> at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268)
> at org.junit.runners.ParentRunner.run(ParentRunner.java:363)
> at org.junit.runners.Suite.runChild(Suite.java:128)
> at org.junit.runners.Suite.runChild(Suite.java:27)
> at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)
> at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)
> at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)
> at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58)
> at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268)
> at org.junit.runners.ParentRunner.run(ParentRunner.java:363)
> at org.junit.runner.JUnitCore.run(JUnitCore.java:137)
> at org.junit.runner.JUnitCore.run(JUnitCore.java:115)
> at android.support.test.internal.runner.TestExecutor.execute(TestExecutor.java:54)
> at android.support.test.runner.AndroidJUnitRunner.onStart(AndroidJUnitRunner.java:240)
> at android.app.Instrumentation$InstrumentationThread.run(Instrumentation.java:1879)

Please advise,
Igor

Beginne mit ChangeTextBehaviorTest.java, insbesondere mit Zeile 104, und führe ChangeTextBehaviorTest auf dem Emulator oder Gerät aus, um den Fehler mit dem null UiObject2 zu reproduzieren. Verfolge, welche Suche nach einem UI-Objekt null zurückgibt, und bestätige, dass der Test ohne die NullPointerException abgeschlossen wird und die Textänderung überprüft.

Vom Indexierungsmodell aus dem Issue-Text verfasst.