我发现崩溃报告由于混淆而变得不可读。 从crashlytics日志中发现异常
[DEBUG] (Execution worker for ':') com.crashlytics - POST file: /home/...-875c-
4f7e9d519d53.zip to URL: https://cm.crashlytics.com/api/v3/platforms/android/code_mappings
[DEBUG] (Execution worker for ':') com.crashlytics - Crashlytics using custom proxy
settings: :80
[WARN] (Execution worker for ':') com.crashlytics - Crashlytics had a problem uploading the
deobs file. Please check network connectivity and try again.
java.lang.IllegalArgumentException: Host name may not be empty
at com.crashlytics.reloc.org.apache.http.util.Args.containsNoBlanks(Args.java:84)
at com.crashlytics.reloc.org.apache.http.HttpHost.<init>(HttpHost.java:80)
at com.crashlytics.reloc.org.apache.http.HttpHost.<init>(HttpHost.java:99)
at com.crashlytics.api.net.proxy.ProxySettings.getConfig(ProxySettings.java:39)
at com.crashlytics.api.RestfulWebApi.sendFile(RestfulWebApi.java:703)
at com.crashlytics.tools.android.project.DeobsUploader.uploadDeobsFile(DeobsUploader.java:60)
at com.crashlytics.tools.android.project.DeobsUploader.uploadDeobfuscationFiles(DeobsUploader.java:37)
at com.crashlytics.tools.android.DeveloperTools.processProperties(DeveloperTools.java:629)
at com.crashlytics.tools.android.DeveloperTools.processArgsInternal(DeveloperTools.java:348)
at com.crashlytics.tools.android.DeveloperTools.gradleMain(DeveloperTools.java:292)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.codehaus.groovy.reflection.CachedMethod.invoke(CachedMethod.java:104)
at groovy.lang.MetaMethod.doMethodInvoke(MetaMethod.java:326)
at org.codehaus.groovy.runtime.callsite.StaticMetaMethodSite.invoke(StaticMetaMethodSite.java:46)
at org.codehaus.groovy.runtime.callsite.StaticMetaMethodSite.call(StaticMetaMethodSite.java:91)
at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:127)
at com.crashlytics.tools.gradle.tasks.FabricTaskBuilder.callDevtoolsWrappingRuntimeExceptions(FabricTaskBuilder.groovy:366)
at com.crashlytics.tools.gradle.tasks.FabricTaskBuilder.this$2$callDevtoolsWrappingRuntimeExceptions(FabricTaskBuilder.groovy)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.codehaus.groovy.reflection.CachedMethod.invoke(CachedMethod.java:104)
at groovy.lang.MetaMethod.doMethodInvoke(MetaMethod.java:326)
at org.codehaus.groovy.runtime.metaclass.ClosureMetaClass.invokeMethod(ClosureMetaClass.java:352)
at org.codehaus.groovy.runtime.callsite.PogoMetaClassSite.callCurrent(PogoMetaClassSite.java:68)
at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCallCurrent(CallSiteArray.java:51)
at org.codehaus.groovy.runtime.callsite.AbstractCallSite.callCurrent(AbstractCallSite.java:156)
at org.codehaus.groovy.runtime.callsite.AbstractCallSite.callCurrent(AbstractCallSite.java:168)
at com.crashlytics.tools.gradle.tasks.FabricTaskBuilder$_crashlyticsUploadDeobs_closure6.doCall(FabricTaskBuilder.groovy:179)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.codehaus.groovy.reflection.CachedMethod.invoke(CachedMethod.java:104)
at groovy.lang.MetaMethod.doMethodInvoke(MetaMethod.java:326)
at org.codehaus.groovy.runtime.metaclass.ClosureMetaClass.invokeMethod(ClosureMetaClass.java:264)
at groovy.lang.MetaClassImpl.invokeMethod(MetaClassImpl.java:1041)
at groovy.lang.Closure.call(Closure.java:411)
at groovy.lang.Closure.call(Closure.java:427)
at org.gradle.api.internal.AbstractTask$ClosureTaskAction.execute(AbstractTask.java:647)
at org.gradle.api.internal.AbstractTask$ClosureTaskAction.execute(AbstractTask.java:620)
at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter$2.run(ExecuteActionsTaskExecuter.java:284)
at org.gradle.internal.operations.DefaultBuildOperationExecutor$RunnableBuildOperationWorker.execute(DefaultBuildOperationExecutor.java:301)
at org.gradle.internal.operations.DefaultBuildOperationExecutor$RunnableBuildOperationWorker.execute(DefaultBuildOperationExecutor.java:293)
at org.gradle.internal.operations.DefaultBuildOperationExecutor.execute(DefaultBuildOperationExecutor.java:175)
at org.gradle.internal.operations.DefaultBuildOperationExecutor.run(DefaultBuildOperationExecutor.java:91)
at org.gradle.internal.operations.DelegatingBuildOperationExecutor.run(DelegatingBuildOperationExecutor.java:31)
at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.executeAction(ExecuteActionsTaskExecuter.java:273)
at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.executeActions(ExecuteActionsTaskExecuter.java:258)
at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.access$200(ExecuteActionsTaskExecuter.java:67)
at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter$TaskExecution.execute(ExecuteActionsTaskExecuter.java:145)
at org.gradle.internal.execution.impl.steps.ExecuteStep.execute(ExecuteStep.java:49)
at org.gradle.internal.execution.impl.steps.CancelExecutionStep.execute(CancelExecutionStep.java:34)
at org.gradle.internal.execution.impl.steps.TimeoutStep.executeWithoutTimeout(TimeoutStep.java:69)
at org.gradle.internal.execution.impl.steps.TimeoutStep.execute(TimeoutStep.java:49)
at org.gradle.internal.execution.impl.steps.CatchExceptionStep.execute(CatchExceptionStep.java:33)
at org.gradle.internal.execution.impl.steps.CreateOutputsStep.execute(CreateOutputsStep.java:50)
at org.gradle.internal.execution.impl.steps.SnapshotOutputStep.execute(SnapshotOutputStep.java:43)
at org.gradle.internal.execution.impl.steps.SnapshotOutputStep.execute(SnapshotOutputStep.java:29)
at org.gradle.internal.execution.impl.steps.CacheStep.executeWithoutCache(CacheStep.java:134)
at org.gradle.internal.execution.impl.steps.CacheStep.lambda$execute$3(CacheStep.java:83)
at java.util.Optional.orElseGet(Optional.java:267)
有人遇到这个问题
答案 0 :(得分：7)
我很确定当我安装了Android Studio 4的独立Canary版本时，这个问题就开始了。马丁·齐特勒（Martin Zeitler），他的回答
提示我正确的方向。问题出在根gradle属性.gradle/gradle.properties文件中。
有
#Fri Jan 24 13:51:37 EET 2020
systemProp.http.proxyHost=
systemProp.http.proxyPort=80
systemProp.https.proxyHost=
systemProp.https.proxyPort=80
并删除systemProp变量可以使上传的模糊化工作恢复正常。
答案 1 :(得分：1)
其内容为：Crashlytics using custom proxy settings: :80。虽然https://始终是端口:443。
该代理不喜欢SSL或其他方式，因为它是端到端加密。
Host name may not be empty可能来自systemProp.https.proxyHost。