title: Why is ./gradlew :processDebugUnitTestManifest failing?
body: <p>Running the following command in an android library that imports another library locally:</p>
  <pre><code>$ ./gradlew votepeer:processDebugUnitTestManifest --stacktrace
  </code></pre>
  <p>Produces the following result. But I am not sure why!</p>
  <p>The following snippets are salvaged from running the processDebugUnitTestManifest-command with stacktrace</p>
  <p>This could be a problem with importing another android library locally via settings.gradle.</p>
  <pre><code>&gt; Task :votepeer:processDebugUnitTestManifest FAILED
  
  FAILURE: Build failed with an exception.
  
  * What went wrong:
  Execution failed for task ':votepeer:processDebugUnitTestManifest'.
  &gt; Manifest merging exception
  
  * Try:
  Run with --info or --debug option to get more log output. Run with --scan to get full insights.
  
  * Exception is:
  org.gradle.api.tasks.TaskExecutionException: Execution failed for task ':votepeer:processDebugUnitTestManifest'.
  </code></pre>
  <pre><code>Caused by: java.lang.RuntimeException: Manifest merging exception
          at com.android.build.gradle.tasks.ProcessTestManifest.mergeManifestsForTestVariant(ProcessTestManifest.kt:305)
          at com.android.build.gradle.tasks.ProcessTestManifest.doFullTaskAction(ProcessTestManifest.kt:111)
          at com.android.build.gradle.internal.tasks.IncrementalTask.handleIncrementalInputs(IncrementalTask.kt:110)
          at com.android.build.gradle.internal.tasks.IncrementalTask.access$handleIncrementalInputs(IncrementalTask.kt:64)
          at com.android.build.gradle.internal.tasks.IncrementalTask$taskAction$$inlined$recordTaskAction$1.invoke(BaseTask.kt:62)
          at com.android.build.gradle.internal.tasks.Blocks.recordSpan(Blocks.java:51)
          at com.android.build.gradle.internal.tasks.IncrementalTask.taskAction$gradle_core(IncrementalTask.kt:141)
          at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
          at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
          at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
          at org.gradle.internal.reflect.JavaMethod.invoke(JavaMethod.java:104)
  </code></pre>
  <pre><code>Caused by: java.io.FileNotFoundException: /Users/jqrgen/dev/bu/voter/libbitcoincashkotlin/libbitcoincash/build/intermediates/navigation_json/debug/navigation.json (No such file or directory)
          at com.google.common.io.Files$FileByteSource.openStream(Files.java:130)
          at com.google.common.io.Files$FileByteSource.openStream(Files.java:120)
          at com.google.common.io.ByteSource$AsCharSource.openStream(ByteSource.java:460)
          at com.google.common.io.CharSource.readLines(CharSource.java:359)
          at com.google.common.io.Files.readLines(Files.java:558)
          at com.android.utils.FileUtils.loadFileWithUnixLineSeparators(FileUtils.java:378)
          at com.android.manifmerger.ManifestMerger2.createNavigationMap(ManifestMerger2.java:496)
          ... 232 more
  
  
  * Get more help at https://help.gradle.org
  
  BUILD FAILED in 2s
  3 actionable tasks: 1 executed, 2 up-to-date
  </code></pre>