尝试构建apk，然后失败。但只有警告。如何开始调试？
[I] ➜ flutter build appbundle -v
[ +26 ms] executing: [/home/tknv/src/flutter/] git log -n 1 --pretty=format:%H
[ +48 ms] Exit code 0 from: git log -n 1 --pretty=format:%H
[ ] cc949a8e8b9cf394b9290a8e80f87af3e207dce5
...
[ ] Artifact Instance of 'FlutterRunnerSDKArtifacts' is not required, skipping update.
[ +80 ms] Found plugin cloud_firestore at
/home/tknv/src/flutter/.pub-cache/hosted/pub.dartlang.org/cloud_firestore-0.12.9+5/
[ +6 ms] Found plugin firebase_core at
/home/tknv/src/flutter/.pub-cache/hosted/pub.dartlang.org/firebase_core-0.4.0+9/
[ +25 ms] Found plugin geoflutterfire at
/home/tknv/src/flutter/.pub-cache/hosted/pub.dartlang.org/geoflutterfire-2.0.3+5/
[ +2 ms] Found plugin geolocator at
/home/tknv/src/flutter/.pub-cache/hosted/pub.dartlang.org/geolocator-5.1.4+1/
[ +2 ms] Found plugin google_api_availability at
/home/tknv/src/flutter/.pub-cache/hosted/pub.dartlang.org/google_api_availability-2.0.1/
[ +2 ms] Found plugin location_permissions at
/home/tknv/src/flutter/.pub-cache/hosted/pub.dartlang.org/location_permissions-2.0.3/
[ +4 ms] Found plugin path_provider at
/home/tknv/src/flutter/.pub-cache/hosted/pub.dartlang.org/path_provider-1.3.0/
[ +15 ms] Found plugin workmanager at
/home/tknv/src/flutter/.pub-cache/hosted/pub.dartlang.org/workmanager-0.1.2/
[ +31 ms] Found plugin cloud_firestore at
/home/tknv/src/flutter/.pub-cache/hosted/pub.dartlang.org/cloud_firestore-0.12.9+5/
[ +2 ms] Found plugin firebase_core at
/home/tknv/src/flutter/.pub-cache/hosted/pub.dartlang.org/firebase_core-0.4.0+9/
[ +7 ms] Found plugin geoflutterfire at
/home/tknv/src/flutter/.pub-cache/hosted/pub.dartlang.org/geoflutterfire-2.0.3+5/
[ +1 ms] Found plugin geolocator at
/home/tknv/src/flutter/.pub-cache/hosted/pub.dartlang.org/geolocator-5.1.4+1/
[ +1 ms] Found plugin google_api_availability at
/home/tknv/src/flutter/.pub-cache/hosted/pub.dartlang.org/google_api_availability-2.0.1/
[ +1 ms] Found plugin location_permissions at
/home/tknv/src/flutter/.pub-cache/hosted/pub.dartlang.org/location_permissions-2.0.3/
[ +3 ms] Found plugin path_provider at
/home/tknv/src/flutter/.pub-cache/hosted/pub.dartlang.org/path_provider-1.3.0/
[ +11 ms] Found plugin workmanager at
/home/tknv/src/flutter/.pub-cache/hosted/pub.dartlang.org/workmanager-0.1.2/
[ +51 ms] Initializing gradle...
[ +16 ms] Using gradle from /home/tknv/src/mana/mana/android/gradlew.
[ +68 ms] executing: /home/tknv/src/mana/mana/android/gradlew -v
[ +417 ms]
------------------------------------------------------------
Gradle 5.4.1
------------------------------------------------------------
Build time: 2019-04-26 08:14:42 UTC
Revision: 261d171646b36a6a28d5a19a69676cd098a4c19d
Kotlin: 1.3.21
Groovy: 2.5.4
Ant: Apache Ant(TM) version 1.9.13 compiled on July 10 2018
JVM: 1.8.0_202-release (JetBrains s.r.o 25.202-b49-5587405)
OS: Linux 5.0.0-31-generic amd64
[ +7 ms] Initializing gradle... (completed in 0.5s)
[ +11 ms] Resolving dependencies...
[ ] executing: [/home/tknv/src/mana/mana/android/]
/home/tknv/src/mana/mana/android/gradlew app:properties
...
[ +1 ms] Running Gradle task 'bundleRelease'...
[ +3 ms] executing: [/home/tknv/src/mana/mana/android/]
/home/tknv/src/mana/mana/android/gradlew -Pverbose=true -Ptarget=lib/main.dart
-Ptrack-widget-creation=false -Ptarget-platform=android-arm,android-arm64 bundleRelease
[ +651 ms] > Configure project :app
[ ] WARNING: API 'variant.getMergeAssets()' is obsolete and has been replaced with
'variant.getMergeAssetsProvider()'.
[ ] It will be removed at the end of 2019.
[ ] For more information, see https://d.android.com/r/tools/task-configuration-avoidance.
[ ] To determine what is calling variant.getMergeAssets(), use
-Pandroid.debug.obsoleteApi=true on the command line to display more information.
[ ] WARNING: API 'variantOutput.getProcessResources()' is obsolete and has been replaced
with 'variantOutput.getProcessResourcesProvider()'.
[ ] It will be removed at the end of 2019.
[ ] For more information, see https://d.android.com/r/tools/task-configuration-avoidance.
[ ] To determine what is calling variantOutput.getProcessResources(), use
-Pandroid.debug.obsoleteApi=true on the command line to display more information.
[ +174 ms] *********************************************************
[ ] WARNING: This version of cloud_firestore will break your Android build if it or its
dependencies aren't compatible with AndroidX.
[ ] See xxx for more information on the problem and how to fix
it.
[ ] This warning prints for all Android build failures. The real root cause of
the error may be unrelated.
[ ] *********************************************************
[ +327 ms] Running Gradle task 'bundleRelease'... (completed in 1.2s)
[ +2 ms] "flutter appbundle" took 3,624ms.
Gradle task bundleRelease failed with exit code 1
#0 throwToolExit (package:flutter_tools/src/base/common.dart:28:3)
#1 _buildGradleProjectV2 (package:flutter_tools/src/android/gradle.dart:751:5)
<asynchronous suspension>
#2 buildGradleProject (package:flutter_tools/src/android/gradle.dart:494:14)
<asynchronous suspension>
#3 buildAppBundle (package:flutter_tools/src/android/app_bundle.dart:43:10)
<asynchronous suspension>
#4 BuildAppBundleCommand.runCommand
(package:flutter_tools/src/commands/build_appbundle.dart:47:11)
<asynchronous suspension>
#5 FlutterCommand.verifyThenRunCommand
(package:flutter_tools/src/runner/flutter_command.dart:490:18)
#6 _asyncThenWrapperHelper.<anonymous closure> (dart:async-patch/async_patch.dart:71:64)
#7 _rootRunUnary (dart:async/zone.dart:1132:38)
#8 _CustomZone.runUnary (dart:async/zone.dart:1029:19)
#9 _FutureListener.handleValue (dart:async/future_impl.dart:137:18)
#10 Future._propagateToListeners.handleValueCallback (dart:async/future_impl.dart:678:45)
#11 Future._propagateToListeners (dart:async/future_impl.dart:707:32)
#12 Future._completeWithValue (dart:async/future_impl.dart:522:5)
#13 Future._asyncComplete.<anonymous closure> (dart:async/future_impl.dart:552:7)
#14 _rootRun (dart:async/zone.dart:1124:13)
#15 _CustomZone.run (dart:async/zone.dart:1021:19)
#16 _CustomZone.runGuarded (dart:async/zone.dart:923:7)
#17 _CustomZone.bindCallbackGuarded.<anonymous closure> (dart:async/zone.dart:963:23)
#18 _microtaskLoop (dart:async/schedule_microtask.dart:41:21)
#19 _startMicrotaskLoop (dart:async/schedule_microtask.dart:50:5)
#20 _runPendingImmediateCallback (dart:isolate-patch/isolate_patch.dart:116:13)
#21 _RawReceivePortImpl._handleMessage (dart:isolate-patch/isolate_patch.dart:173:5)
如果尝试flutter run。没有错误，但无法在手机上运行应用程序。
[I] ➜ flutter run
Launching lib/main.dart on 501SO in debug mode...
Initializing gradle... 0.5s
Resolving dependencies... 1.7s
Running Gradle task 'assembleDebug'... 1.3s
Gradle task assembleDebug failed with exit code 1