【发布时间】：2020-04-13 23:43:12
【问题描述】：
将 Flutter 从 1.9.7 升级到 v1.12.13+hotfix.5 后，我的应用程序构建失败。我遇到了以下异常：
[ +124 ms] > Task :draw:compileFossDebugSources UP-TO-DATE
[ +5 ms] > Task :draw:assembleFossDebug UP-TO-DATE
[ +136 ms] Deprecated Gradle features were used in this build, making it incompatible with Gradle 6.0.
[ ] Use '--warning-mode all' to show the individual deprecation warnings.
[ ] See https://docs.gradle.org/5.4.1/userguide/command_line_interface.html#sec:command_line_warnings
[ ] BUILD SUCCESSFUL in 5m 30s
[ ] 396 actionable tasks: 16 executed, 380 up-to-date
[ +529 ms] Running Gradle task 'assembleFossDebug'... (completed in 331.1s, longer than expected)
[ +35 ms] "flutter run" took 332,133ms.
Gradle build failed to produce an .apk file. It's likely that this file was generated under C:\flutter_projects\my_branch\iamflexi_app\build, but the tool couldn't find it.
#0 throwToolExit (package:flutter_tools/src/base/common.dart:28:3)
#1 _exitWithExpectedFileNotFound (package:flutter_tools/src/android/gradle.dart:827:3)
#2 findApkFiles (package:flutter_tools/src/android/gradle.dart:765:5)
#3 buildGradleApp (package:flutter_tools/src/android/gradle.dart:451:35)
#4 _asyncThenWrapperHelper.<anonymous closure> (dart:async-patch/async_patch.dart:73:64)
#5 _rootRunUnary (dart:async/zone.dart:1134:38)
#6 _CustomZone.runUnary (dart:async/zone.dart:1031:19)
#7 _FutureListener.handleValue (dart:async/future_impl.dart:139:18)
#8 Future._propagateToListeners.handleValueCallback (dart:async/future_impl.dart:680:45)
#9 Future._propagateToListeners (dart:async/future_impl.dart:709:32)
#10 Future._completeWithValue (dart:async/future_impl.dart:524:5)
#11 _AsyncAwaitCompleter.complete (dart:async-patch/async_patch.dart:32:15)
#12 _completeOnAsyncReturn (dart:async-patch/async_patch.dart:290:13)
#13 _DefaultProcessUtils.stream (package:flutter_tools/src/base/process.dart)
#14 _asyncThenWrapperHelper.<anonymous closure> (dart:async-patch/async_patch.dart:73:64)
#15 _rootRunUnary (dart:async/zone.dart:1134:38)
#16 _CustomZone.runUnary (dart:async/zone.dart:1031:19)
#17 _FutureListener.handleValue (dart:async/future_impl.dart:139:18)
#18 Future._propagateToListeners.handleValueCallback (dart:async/future_impl.dart:680:45)
#19 Future._propagateToListeners (dart:async/future_impl.dart:709:32)
#20 Future._completeWithValue (dart:async/future_impl.dart:524:5)
#21 Future._asyncComplete.<anonymous closure> (dart:async/future_impl.dart:554:7)
#22 _rootRun (dart:async/zone.dart:1126:13)
#23 _CustomZone.run (dart:async/zone.dart:1023:19)
#24 _CustomZone.runGuarded (dart:async/zone.dart:925:7)
#25 _CustomZone.bindCallbackGuarded.<anonymous closure> (dart:async/zone.dart:965:23)
#26 _microtaskLoop (dart:async/schedule_microtask.dart:43:21)
#27 _startMicrotaskLoop (dart:async/schedule_microtask.dart:52:5)
#28 _runPendingImmediateCallback (dart:isolate-patch/isolate_patch.dart:118:13)
#29 _RawReceivePortImpl._handleMessage (dart:isolate-patch/isolate_patch.dart:175:5)
但是，当我在 Android Studio 中的 Android 模块中打开我的应用程序时，它运行良好，但是当我尝试使用 Flutter 运行时，出现了该错误。
【问题讨论】：
-
你已经升级到 gradle 6 与其他人不匹配。要查看已弃用的内容，请使用：stackoverflow.com/questions/51610420/…
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如果你愿意，你也可以降级 gradle 版本
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distributionUrl=https\://services.gradle.org/distributions/gradle-5.4.1-all.zip 这是我在 gradle-wrapper.properties 文件中的 gradle 版本，它在Flutter 1.9.7 版，但在我升级到 Flutter 1.12 版后，我收到了这个错误。
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我不知道为什么，但看看：stackoverflow.com/a/59453116/6658129
标签： flutter