I am learning Robolectric .
My project, 
My unit test codes of MainActivityTest as follows,
package com.example.activity; import android.app.Activity; import com.example.BuildConfig; import org.junit.Test; import org.junit.runner.RunWith; import org.robolectric.Robolectric; import org.robolectric.RobolectricGradleTestRunner; import org.robolectric.annotation.Config; import static org.junit.Assert.assertTrue; @RunWith(RobolectricGradleTestRunner.class) @Config(constants = BuildConfig.class) public class MainActivityTest { @Test public void titleIsCorrect() throws Exception { Activity activity = Robolectric.setupActivity(MainActivity.class); assertTrue(activity.getTitle().toString().equals("Deckard")); } }
Configuration, 
When I run the test code, 
Does not work,
/Library/Java/JavaVirtualMachines/jdk1.8.0_40.jdk/Contents/Home/bin/java -agentlib:jdwp=transport=dt_socket,address=127.0.0.1:51663,suspend=y,server=n -ea -javaagent:/Users/liren/Library/Caches/AndroidStudio1.2/groovyHotSwap/gragent.jar -Dfile.encoding=UTF-8 -classpath "/Applications/Android Studio 2.app/Contents/lib/idea_rt.jar:/Applications/Android Studio 2.app/Contents/plugins/junit/lib/junit-rt.jar:/Users/liren/Library/Android/sdk/platforms/android-19/data/res:/Users/liren/code/robolectric/RobolectricGo/android-api-19/build/intermediates/classes/test/debug:/Users/liren/code/robolectric/RobolectricGo/android-api-19/build/intermediates/classes/debug:/Users/liren/kit/gradle-2.4/caches/modules-2/files-2.1/org.apache.maven/maven-ant-tasks/2.1.3/b09be554228d66d208e5fef5266844aacf443abc/maven-ant-tasks-2.1.3.jar:/Users/liren/kit/gradle-2.4/caches/modules-2/files-2.1/org.apache.ant/ant/1.8.0/7b456ca6b93900f96e58cc8371f03d90a9c1c8d1/ant-1.8.0.jar:/Users/liren/kit/gradle-2.4/caches/modules-2/files-2.1/org.assertj/assertj-core/1.7.0/c0451c7fce61d14f9f0fa84bb2760e548221e471/assertj-core-1.7.0.jar:/Users/liren/.m2/repository/com/ibm/icu/icu4j/53.1/icu4j-53.1.jar:/Users/liren/.m2/repository/com/google/android/apps/common/testing/accessibility/framework/accessibility-test-framework/1.0/accessibility-test-framework-1.0.jar:/Users/liren/kit/gradle-2.4/caches/modules-2/files-2.1/org.robolectric/robolectric-annotations/3.0-SNAPSHOT/4e48c5059ce3fae922863f3464fa05ce6a5e08d6/robolectric-annotations-3.0-SNAPSHOT.jar:/Users/liren/kit/gradle-2.4/caches/modules-2/files-2.1/org.apache.ant/ant-launcher/1.8.0/8b53ba16fa62fb1034da8f1de200ddc407c8381/ant-launcher-1.8.0.jar:/Users/liren/kit/gradle-2.4/caches/modules-2/files-2.1/org.ow2.asm/asm-commons/5.0.1/7b7147a390a93a14d2edfdcf3f7b0e87a0939c3e/asm-commons-5.0.1.jar:/Users/liren/.m2/repository/com/almworks/sqlite4java/sqlite4java/0.282/sqlite4java-0.282.jar:/Users/liren/kit/gradle-2.4/caches/modules-2/files-2.1/org.ow2.asm/asm-tree/5.0.1/1b1e6e9d869acd704056d0a4223071a511c619e6/asm-tree-5.0.1.jar:/Users/liren/kit/gradle-2.4/caches/modules-2/files-2.1/org.ow2.asm/asm/5.0.1/2fd56467a018aafe6ec6a73ccba520be4a7e1565/asm-5.0.1.jar:/Users/liren/kit/gradle-2.4/caches/modules-2/files-2.1/org.ow2.asm/asm-analysis/5.0.1/e286fbee48efacb4e7c175f7948d9d8b2ab52352/asm-analysis-5.0.1.jar:/Users/liren/kit/gradle-2.4/caches/modules-2/files-2.1/org.robolectric/robolectric/3.0-SNAPSHOT/fde4745244f1447557b2f55030cb4fc546b53fac/robolectric-3.0-SNAPSHOT.jar:/Users/liren/.m2/repository/com/ximpleware/vtd-xml/2.11/vtd-xml-2.11.jar:/Users/liren/kit/gradle-2.4/caches/modules-2/files-2.1/org.ow2.asm/asm-util/5.0.1/7c8caddfbd0b2d7b844f8fcc75175b9cb9cf4724/asm-util-5.0.1.jar:/Users/liren/kit/gradle-2.4/caches/modules-2/files-2.1/org.hamcrest/hamcrest-core/1.1/860340562250678d1a344907ac75754e259cdb14/hamcrest-core-1.1.jar:/Users/liren/kit/gradle-2.4/caches/modules-2/files-2.1/org.bouncycastle/bcprov-jdk16/1.46/ce091790943599535cbb4de8ede84535b0c1260c/bcprov-jdk16-1.46.jar:/Users/liren/kit/gradle-2.4/caches/modules-2/files-2.1/org.robolectric/robolectric-utils/3.0-SNAPSHOT/bf446c7a07ee47a454c8db9ad10c1a8ca2515fd9/robolectric-utils-3.0-SNAPSHOT.jar:/Users/liren/kit/gradle-2.4/caches/modules-2/files-2.1/junit/junit/4.10/e4f1766ce7404a08f45d859fb9c226fc9e41a861/junit-4.10.jar:/Users/liren/kit/gradle-2.4/caches/modules-2/files-2.1/org.robolectric/robolectric-resources/3.0-SNAPSHOT/ee905e9f06d0056f8d165a9a8ba24864825baa64/robolectric-resources-3.0-SNAPSHOT.jar:/Users/liren/kit/gradle-2.4/caches/modules-2/files-2.1/org.robolectric/shadows-core/3.0-SNAPSHOT/419067a26312d0bd71b00d81fa4bc501f7ccdabd/shadows-core-3.0-SNAPSHOT.jar:/Users/liren/code/robolectric/RobolectricGo/android-api-19/build/intermediates/mockable-android-19.jar" com.intellij.rt.execution.junit.JUnitStarter -ideVersion5 com.example.activity.MainActivityTest objc[13827]: Class JavaLaunchHelper is implemented in both /Library/Java/JavaVirtualMachines/jdk1.8.0_40.jdk/Contents/Home/bin/java and /Library/Java/JavaVirtualMachines/jdk1.8.0_40.jdk/Contents/Home/jre/lib/libinstrument.dylib. One of the two will be used. Which one is undefined. Connected to the target VM, address: '127.0.0.1:51663', transport: 'socket' java.io.FileNotFoundException: build/intermediates/bundles/debug/AndroidManifest.xml (No such file or directory) at java.io.FileInputStream.open0(Native Method) at java.io.FileInputStream.open(FileInputStream.java:195) at java.io.FileInputStream.<init>(FileInputStream.java:138) at org.robolectric.res.FileFsFile.getInputStream(FileFsFile.java:78) at org.robolectric.manifest.AndroidManifest.parseAndroidManifest(AndroidManifest.java:132) at org.robolectric.manifest.AndroidManifest.getTargetSdkVersion(AndroidManifest.java:485) at org.robolectric.RobolectricTestRunner.pickSdkVersion(RobolectricTestRunner.java:430) at org.robolectric.RobolectricTestRunner.runChild(RobolectricTestRunner.java:184) at org.robolectric.RobolectricTestRunner.runChild(RobolectricTestRunner.java:54) at org.junit.runners.ParentRunner$3.run(ParentRunner.java:231) at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:60) at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:229) at org.junit.runners.ParentRunner.access$000(ParentRunner.java:50) at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:222) at org.robolectric.RobolectricTestRunner$1.evaluate(RobolectricTestRunner.java:149) at org.junit.runners.ParentRunner.run(ParentRunner.java:300) at org.junit.runner.JUnitCore.run(JUnitCore.java:157) at com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:78) at com.intellij.rt.execution.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:212) at com.intellij.rt.execution.junit.JUnitStarter.main(JUnitStarter.java:68) java.lang.UnsupportedOperationException: Robolectric does not support API level 1. at org.robolectric.internal.SdkConfig.<init>(SdkConfig.java:38) at org.robolectric.RobolectricTestRunner.runChild(RobolectricTestRunner.java:184) at org.robolectric.RobolectricTestRunner.runChild(RobolectricTestRunner.java:54) at org.junit.runners.ParentRunner$3.run(ParentRunner.java:231) at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:60) at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:229) at org.junit.runners.ParentRunner.access$000(ParentRunner.java:50) at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:222) at org.robolectric.RobolectricTestRunner$1.evaluate(RobolectricTestRunner.java:149) at org.junit.runners.ParentRunner.run(ParentRunner.java:300) at org.junit.runner.JUnitCore.run(JUnitCore.java:157) at com.intellij.rt.execution.junit.JUnitStarter.main(JUnitStarter.java:68) Disconnected from the target VM, address: '127.0.0.1:51663', transport: 'socket' Process finished with exit code 255
He says something about my java. Information about java, 
Why does he say
One of two will be used. Which one is undefined.
All code is in my github RobolectricGo .
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