title: Where to exactly add Okhttp and retrofit proguard rules in android?
body: <p>I got this, but don't find where to add? And also should I have to use curly braces{} or something?</p>
  
  <p><a href="https://github.com/krschultz/android-proguard-snippets/blob/master/libraries/proguard-square-okhttp3.pro" rel="nofollow noreferrer">https://github.com/krschultz/android-proguard-snippets/blob/master/libraries/proguard-square-okhttp3.pro</a></p>
  
  <pre><code># OkHttp
  -keepattributes Signature
  -keepattributes *Annotation*
  -keep class okhttp3.** { *; }
  -keep interface okhttp3.** { *; }
  -dontwarn okhttp3.**
  </code></pre>
  
  <p>Code:</p>
  
  <pre><code>dependencies {
      /*TODO:-&gt; Android default libraries*/
      implementation fileTree(dir: 'libs', include: ['*.jar'])
      implementation 'androidx.appcompat:appcompat:1.1.0-alpha04'
      implementation 'androidx.constraintlayout:constraintlayout:1.1.3'
      implementation 'com.google.android.material:material:1.0.0'
      implementation 'androidx.legacy:legacy-support-v4:1.0.0'
      implementation 'androidx.cardview:cardview:1.0.0'
      testImplementation 'junit:junit:4.12'
      androidTestImplementation 'androidx.test.ext:junit:1.1.0'
      androidTestImplementation 'androidx.test.espresso:espresso-core:3.1.0'
  
      /*TODO:-&gt; For shows Database on Google Chrome*/
      implementation 'com.facebook.stetho:stetho:1.5.0'
      implementation('com.crashlytics.sdk.android:crashlytics:2.9.8@aar') {
          transitive = true
      }
  
      /*TODO:-&gt; For View binding*/
      implementation 'com.jakewharton:butterknife:10.1.0'
      annotationProcessor 'com.jakewharton:butterknife-compiler:10.1.0'
  
      /*TODO:-&gt; Server side libraries*/
      implementation 'com.squareup.retrofit2:retrofit:2.5.0'
      implementation 'com.squareup.retrofit2:converter-gson:2.5.0'
      implementation 'org.apache.httpcomponents:httpclient-android:4.3.3'
      implementation 'com.squareup.retrofit2:converter-scalars:2.5.0'
      implementation 'com.squareup.okhttp3:okhttp-urlconnection:3.13.0'
      implementation 'com.squareup.okhttp3:logging-interceptor:3.13.0'
  
  }
  </code></pre>
  
  <p>EDIT (I edited but compiler error of this below line):</p>
  
  <pre><code>buildTypes {
          release {
              minifyEnabled true
              /*TODO:-&gt; minifyEnabled should be true to use 'shrinkResources'*/
              //shrinkResources true
              proguardFiles getDefaultProguardFile('proguard-android.txt'),
  
  
  
  
              # OkHttp
              -keepattributes Signature
              -keepattributes *Annotation*
                      -keep class com.squareup.okhttp.** { *; }
              -keep interface com.squareup.okhttp.** { *; }
              -dontwarn com.squareup.okhttp.**
  
  
                      'proguard-rules.pro'
          }
  
          customDebugType {
              debuggable true
          }
      }
  </code></pre>
  
  <p>Link of my proguard file: <a href="https://drive.google.com/open?id=167PUIaBExfWtd_Q1IRSpRZ8WvD0rm8z8" rel="nofollow noreferrer">https://drive.google.com/open?id=167PUIaBExfWtd_Q1IRSpRZ8WvD0rm8z8</a></p>
  
  <p><strong>Exception (I also edited proguard file, but still exception):</strong></p>
  
  <pre><code>org.gradle.api.InvalidUserDataException: Keystore file '/root/Desktop/Remind Me.jks' not found for signing config 'externalOverride'.
      at com.android.build.gradle.internal.tasks.ValidateSigningTask.doTaskAction(ValidateSigningTask.kt:75)
      at com.android.build.gradle.internal.tasks.NonIncrementalTask$taskAction$$inlined$recordTaskAction$1.invoke(AndroidVariantTask.kt:51)
      at com.android.build.gradle.internal.tasks.NonIncrementalTask$taskAction$$inlined$recordTaskAction$1.invoke(AndroidVariantTask.kt:31)
      at com.android.build.gradle.internal.tasks.Blocks.recordSpan(Blocks.java:91)
      at com.android.build.gradle.internal.tasks.NonIncrementalTask.taskAction(NonIncrementalTask.kt:34)
      at sun.reflect.GeneratedMethodAccessor823.invoke(Unknown Source)
      at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
      at java.lang.reflect.Method.invoke(Method.java:498)
      at org.gradle.internal.reflect.JavaMethod.invoke(JavaMethod.java:103)
      at org.gradle.api.internal.project.taskfactory.StandardTaskAction.doExecute(StandardTaskAction.java:48)
      at org.gradle.api.internal.project.taskfactory.StandardTaskAction.execute(StandardTaskAction.java:41)
      at org.gradle.api.internal.project.taskfactory.StandardTaskAction.execute(StandardTaskAction.java:28)
      at org.gradle.api.internal.AbstractTask$TaskActionWrapper.execute(AbstractTask.java:702)
      at org.gradle.api.internal.AbstractTask$TaskActionWrapper.execute(AbstractTask.java:669)
      at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter$5.run(ExecuteActionsTaskExecuter.java:404)
      at org.gradle.internal.operations.DefaultBuildOperationExecutor$RunnableBuildOperationWorker.execute(DefaultBuildOperationExecutor.java:402)
      at org.gradle.internal.operations.DefaultBuildOperationExecutor$RunnableBuildOperationWorker.execute(DefaultBuildOperationExecutor.java:394)
      at org.gradle.internal.operations.DefaultBuildOperationExecutor$1.execute(DefaultBuildOperationExecutor.java:165)
      at org.gradle.internal.operations.DefaultBuildOperationExecutor.execute(DefaultBuildOperationExecutor.java:250)
      at org.gradle.internal.operations.DefaultBuildOperationExecutor.execute(DefaultBuildOperationExecutor.java:158)
      at org.gradle.internal.operations.DefaultBuildOperationExecutor.run(DefaultBuildOperationExecutor.java:92)
      at org.gradle.internal.operations.DelegatingBuildOperationExecutor.run(DelegatingBuildOperationExecutor.java:31)
      at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.executeAction(ExecuteActionsTaskExecuter.java:393)
      at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.executeActions(ExecuteActionsTaskExecuter.java:376)
      at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.access$200(ExecuteActionsTaskExecuter.java:80)
      at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter$TaskExecution.execute(ExecuteActionsTaskExecuter.java:213)
      at org.gradle.internal.execution.steps.ExecuteStep.lambda$execute$1(ExecuteStep.java:33)
      at java.util.Optional.orElseGet(Optional.java:267)
      at org.gradle.internal.execution.steps.ExecuteStep.execute(ExecuteStep.java:33)
      at org.gradle.internal.execution.steps.ExecuteStep.execute(ExecuteStep.java:26)
      at org.gradle.internal.execution.steps.CleanupOutputsStep.execute(CleanupOutputsStep.java:58)
      at org.gradle.internal.execution.steps.CleanupOutputsStep.execute(CleanupOutputsStep.java:35)
      at org.gradle.internal.execution.steps.ResolveInputChangesStep.execute(ResolveInputChangesStep.java:48)
      at org.gradle.internal.execution.steps.ResolveInputChangesStep.execute(ResolveInputChangesStep.java:33)
      at org.gradle.internal.execution.steps.CancelExecutionStep.execute(CancelExecutionStep.java:39)
      at org.gradle.internal.execution.steps.TimeoutStep.executeWithoutTimeout(TimeoutStep.java:73)
      at org.gradle.internal.execution.steps.TimeoutStep.execute(TimeoutStep.java:54)
      at org.gradle.internal.execution.steps.CatchExceptionStep.execute(CatchExceptionStep.java:35)
      at org.gradle.internal.execution.steps.CreateOutputsStep.execute(CreateOutputsStep.java:51)
      at org.gradle.internal.execution.steps.SnapshotOutputsStep.execute(SnapshotOutputsStep.java:45)
      at org.gradle.internal.execution.steps.SnapshotOutputsStep.execute(SnapshotOutputsStep.java:31)
      at org.gradle.internal.execution.steps.CacheStep.executeWithoutCache(CacheStep.java:201)
      at org.gradle.internal.execution.steps.CacheStep.execute(CacheStep.java:70)
      at org.gradle.internal.execution.steps.CacheStep.execute(CacheStep.java:45)
      at org.gradle.internal.execution.steps.BroadcastChangingOutputsStep.execute(BroadcastChangingOutputsStep.java:49)
      at org.gradle.internal.execution.steps.StoreSnapshotsStep.execute(StoreSnapshotsStep.java:43)
      at org.gradle.internal.execution.steps.StoreSnapshotsStep.execute(StoreSnapshotsStep.java:32)
      at org.gradle.internal.execution.steps.RecordOutputsStep.execute(RecordOutputsStep.java:38)
      at org.gradle.internal.execution.steps.RecordOutputsStep.execute(RecordOutputsStep.java:24)
      at org.gradle.internal.execution.steps.SkipUpToDateStep.executeBecause(SkipUpToDateStep.java:96)
      at org.gradle.internal.execution.steps.SkipUpToDateStep.lambda$execute$0(SkipUpToDateStep.java:89)
      at java.util.Optional.map(Optional.java:215)
      at org.gradle.internal.execution.steps.SkipUpToDateStep.execute(SkipUpToDateStep.java:54)
      at org.gradle.internal.execution.steps.SkipUpToDateStep.execute(SkipUpToDateStep.java:38)
      at org.gradle.internal.execution.steps.ResolveChangesStep.execute(ResolveChangesStep.java:77)
      at org.gradle.internal.execution.steps.ResolveChangesStep.execute(ResolveChangesStep.java:37)
      at org.gradle.internal.execution.steps.legacy.MarkSnapshottingInputsFinishedStep.execute(MarkSnapshottingInputsFinishedStep.java:36)
      at org.gradle.internal.execution.steps.legacy.MarkSnapshottingInputsFinishedStep.execute(MarkSnapshottingInputsFinishedStep.java:26)
      at org.gradle.internal.execution.steps.ResolveCachingStateStep.execute(ResolveCachingStateStep.java:90)
      at org.gradle.internal.execution.steps.ResolveCachingStateStep.execute(ResolveCachingStateStep.java:48)
      at org.gradle.internal.execution.impl.DefaultWorkExecutor.execute(DefaultWorkExecutor.java:33)
      at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.execute(ExecuteActionsTaskExecuter.java:120)
      at org.gradle.api.internal.tasks.execution.ResolveBeforeExecutionStateTaskExecuter.execute(ResolveBeforeExecutionStateTaskExecuter.java:75)
      at org.gradle.api.internal.tasks.execution.ValidatingTaskExecuter.execute(ValidatingTaskExecuter.java:62)
      at org.gradle.api.internal.tasks.execution.SkipEmptySourceFilesTaskExecuter.execute(SkipEmptySourceFilesTaskExecuter.java:108)
      at org.gradle.api.internal.tasks.execution.ResolveBeforeExecutionOutputsTaskExecuter.execute(ResolveBeforeExecutionOutputsTaskExecuter.java:67)
      at org.gradle.api.internal.tasks.execution.ResolveAfterPreviousExecutionStateTaskExecuter.execute(ResolveAfterPreviousExecutionStateTaskExecuter.java:46)
      at org.gradle.api.internal.tasks.execution.CleanupStaleOutputsExecuter.execute(CleanupStaleOutputsExecuter.java:94)
      at org.gradle.api.internal.tasks.execution.FinalizePropertiesTaskExecuter.execute(FinalizePropertiesTaskExecuter.java:46)
      at org.gradle.api.internal.tasks.execution.ResolveTaskExecutionModeExecuter.execute(ResolveTaskExecutionModeExecuter.java:95)
      at org.gradle.api.internal.tasks.execution.SkipTaskWithNoActionsExecuter.execute(SkipTaskWithNoActionsExecuter.java:57)
      at org.gradle.api.internal.tasks.execution.SkipOnlyIfTaskExecuter.execute(SkipOnlyIfTaskExecuter.java:56)
      at org.gradle.api.internal.tasks.execution.CatchExceptionTaskExecuter.execute(CatchExceptionTaskExecuter.java:36)
      at org.gradle.api.internal.tasks.execution.EventFiringTaskExecuter$1.executeTask(EventFiringTaskExecuter.java:73)
      at org.gradle.api.internal.tasks.execution.EventFiringTaskExecuter$1.call(EventFiringTaskExecuter.java:52)
      at org.gradle.api.internal.tasks.execution.EventFiringTaskExecuter$1.call(EventFiringTaskExecuter.java:49)
      at org.gradle.internal.operations.DefaultBuildOperationExecutor$CallableBuildOperationWorker.execute(DefaultBuildOperationExecutor.java:416)
      at org.gradle.internal.operations.DefaultBuildOperationExecutor$CallableBuildOperationWorker.execute(DefaultBuildOperationExecutor.java:406)
      at org.gradle.internal.operations.DefaultBuildOperationExecutor$1.execute(DefaultBuildOperationExecutor.java:165)
      at org.gradle.internal.operations.DefaultBuildOperationExecutor.execute(DefaultBuildOperationExecutor.java:250)
      at org.gradle.internal.operations.DefaultBuildOperationExecutor.execute(DefaultBuildOperationExecutor.java:158)
      at org.gradle.internal.operations.DefaultBuildOperationExecutor.call(DefaultBuildOperationExecutor.java:102)
      at org.gradle.internal.operations.DelegatingBuildOperationExecutor.call(DelegatingBuildOperationExecutor.java:36)
      at org.gradle.api.internal.tasks.execution.EventFiringTaskExecuter.execute(EventFiringTaskExecuter.java:49)
      at org.gradle.execution.plan.LocalTaskNodeExecutor.execute(LocalTaskNodeExecutor.java:43)
      at org.gradle.execution.taskgraph.DefaultTaskExecutionGraph$InvokeNodeExecutorsAction.execute(DefaultTaskExecutionGraph.java:355)
      at org.gradle.execution.taskgraph.DefaultTaskExecutionGraph$InvokeNodeExecutorsAction.execute(DefaultTaskExecutionGraph.java:343)
      at org.gradle.execution.taskgraph.DefaultTaskExecutionGraph$BuildOperationAwareExecutionAction.execute(DefaultTaskExecutionGraph.java:336)
      at org.gradle.execution.taskgraph.DefaultTaskExecutionGraph$BuildOperationAwareExecutionAction.execute(DefaultTaskExecutionGraph.java:322)
      at org.gradle.execution.plan.DefaultPlanExecutor$ExecutorWorker$1.execute(DefaultPlanExecutor.java:134)
      at org.gradle.execution.plan.DefaultPlanExecutor$ExecutorWorker$1.execute(DefaultPlanExecutor.java:129)
      at org.gradle.execution.plan.DefaultPlanExecutor$ExecutorWorker.execute(DefaultPlanExecutor.java:202)
      at org.gradle.execution.plan.DefaultPlanExecutor$ExecutorWorker.executeNextNode(DefaultPlanExecutor.java:193)
      at org.gradle.execution.plan.DefaultPlanExecutor$ExecutorWorker.run(DefaultPlanExecutor.java:129)
      at org.gradle.internal.concurrent.ExecutorPolicy$CatchAndRecordFailures.onExecute(ExecutorPolicy.java:63)
      at org.gradle.internal.concurrent.ManagedExecutorImpl$1.run(ManagedExecutorImpl.java:46)
      at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
      at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
      at org.gradle.internal.concurrent.ThreadFactoryImpl$ManagedThreadRunnable.run(ThreadFactoryImpl.java:55)
      at java.lang.Thread.run(Thread.java:748)
  </code></pre>