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使用GreenDao时报NullPointerException
解决办法：在类中添加RunWith注解：
@RunWith(RobolectricGradleTestRunner.class)
@Config(constants = BuildConfig.class, sdk = 16)Multi dex installation failed
java.lang.RuntimeException: java.lang.RuntimeException: Multi dex installation failed (/Users/me/Data/Projects/my-android/myapp/. (Is a directory)).
at org.robolectric.RobolectricTestRunner$2.evaluate(RobolectricTestRunner.java:257)
at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:263)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:68)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:47)
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$1.evaluate(RobolectricTestRunner.java:194)
at org.junit.runners.ParentRunner.run(ParentRunner.java:300)
at org.gradle.api.internal.tasks.testing.junit.JUnitTestClassExecuter.runTestClass(JUnitTestClassExecuter.java:86)
at org.gradle.api.internal.tasks.testing.junit.JUnitTestClassExecuter.execute(JUnitTestClassExecuter.java:49)
at org.gradle.api.internal.tasks.testing.junit.JUnitTestClassProcessor.processTestClass(JUnitTestClassProcessor.java:69)
at org.gradle.api.internal.tasks.testing.SuiteTestClassProcessor.processTestClass(SuiteTestClassProcessor.java:48)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at org.gradle.messaging.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:35)
at org.gradle.messaging.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:24)
at org.gradle.messaging.dispatch.ContextClassLoaderDispatch.dispatch(ContextClassLoaderDispatch.java:32)
at org.gradle.messaging.dispatch.ProxyDispatchAdapter$DispatchingInvocationHandler.invoke(ProxyDispatchAdapter.java:93)
at com.sun.proxy.$Proxy2.processTestClass(Unknown Source)
at org.gradle.api.internal.tasks.testing.worker.TestWorker.processTestClass(TestWorker.java:105)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at org.gradle.messaging.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:35)
at org.gradle.messaging.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:24)
at org.gradle.messaging.remote.internal.hub.MessageHub$Handler.run(MessageHub.java:355)
at org.gradle.internal.concurrent.DefaultExecutorFactory$StoppableExecutorImpl$1.run(DefaultExecutorFactory.java:64)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at java.lang.Thread.run(Thread.java:744)解决办法：在build.gradle中添加如下依赖：
testCompile "org.robolectric:shadows-multidex:3.0"build/intermediates/bundles/debug/AndroidManifest.xml not found
Caused by: java.lang.RuntimeException: build/intermediates/bundles/debug/AndroidManifest.xml not found or not a file; it should point to your project's AndroidManifest.xml
at org.robolectric.manifest.AndroidManifest.validate(AndroidManifest.java:120)
at org.robolectric.manifest.AndroidManifest.getResourcePath(AndroidManifest.java:469)
at org.robolectric.manifest.AndroidManifest.getIncludedResourcePaths(AndroidManifest.java:475)
at org.robolectric.RobolectricTestRunner.createAppResourceLoader(RobolectricTestRunner.java:479)
at org.robolectric.RobolectricTestRunner.getAppResourceLoader(RobolectricTestRunner.java:471)
at org.robolectric.internal.ParallelUniverse.setUpApplicationState(ParallelUniverse.java:73)
at org.robolectric.RobolectricTestRunner.setUpApplicationState(RobolectricTestRunner.java:421)
at org.robolectric.RobolectricTestRunner$2.evaluate(RobolectricTestRunner.java:234)解决办法：
1、 Edit Configurations
2、 In Junit, you have to change the working directory to $MODULE_DIR$
