Flutter应用程序在启动时崩溃

Question

我有一个正在开发的应用程序，该应用程序已在商店中发布。一直运行良好，直到最近对flutter，gradle，dart和android studio进行了一些更新。这整个星​​期都在解决这个问题，试图让它再次运行我的应用程序。目前，它似乎尝试运行该应用程序，该应用程序立即在电话上关闭。本身没有错误，但是这些是flutter运行-v的最新行：

                 E: meta-data (line=181)
                   A: android:name(0x01010003)="com.google.android.gms.version" (Raw: "com.google.android.gms.version")
                   A: android:value(0x01010024)=@0x7f060001
[  +13 ms] Stopping app 'app.apk' on SM G970F.
[  +23 ms] executing: C:\Installations\AndroidSDK\platform-tools\adb.exe -s RF8M33L3WLK shell am force-stop app.appname
[ +120 ms] executing: C:\Installations\AndroidSDK\platform-tools\adb.exe -s RF8M33L3WLK shell pm list packages app.appname
[ +222 ms] Installing APK.
[   +4 ms] executing: C:\Installations\AndroidSDK\platform-tools\adb.exe version
[  +60 ms] Android Debug Bridge version 1.0.41
           Version 29.0.4-5871666
           Installed as C:\Installations\AndroidSDK\platform-tools\adb.exe
[   +2 ms] executing: C:\Installations\AndroidSDK\platform-tools\adb.exe start-server
[  +41 ms] Installing android\build\app\outputs\apk\app.apk...
[   +1 ms] executing: C:\Installations\AndroidSDK\platform-tools\adb.exe -s RF8M33L3WLK install -t -r C:\Projects\Apps\app.appname\android\build\app\outputs\apk\app.apk
[+23392 ms] Performing Streamed Install
                     Success
[   +2 ms] Installing android\build\app\outputs\apk\app.apk... (completed in 23.4s)
[   +6 ms] executing: C:\Installations\AndroidSDK\platform-tools\adb.exe -s RF8M33L3WLK shell echo -n 0d4daf35397951507aa469d3eecceb6e826a3f62 > /data/local/tmp/sky.app.appname.sha1
[  +88 ms] SM G970F startApp
[   +3 ms] executing: C:\Installations\AndroidSDK\platform-tools\adb.exe -s RF8M33L3WLK shell am start -a android.intent.action.RUN -f 0x20000000 --ez enable-background-compilation true --ez
enable-dart-profiling true --ez enable-checked-mode true --ez verify-entry-points true app.appname/app.appname.MainActivity
[ +125 ms] Starting: Intent { act=android.intent.action.RUN flg=0x20000000 cmp=app.appname/.MainActivity (has extras) }
[   +1 ms] Waiting for observatory port to be available...

应用程序似乎在最后一行（等待观测站端口）出现的同一瞬间崩溃。不知道我应该在这里寻找什么，或者它可能跌落到哪里。

编辑：

Flutter Doctor -v输出：

[√] Flutter (Channel beta, v1.10.7, on Microsoft Windows [Version 10.0.17763.805], locale en-AU)
    • Flutter version 1.10.7 at c:\flutter
    • Framework revision e70236e36c (2 weeks ago), 2019-10-02 09:32:30 -0700
    • Engine revision 9e6314d348
    • Dart version 2.6.0 (build 2.6.0-dev.4.0 1103600280)


[√] Android toolchain - develop for Android devices (Android SDK version 29.0.2)
    • Android SDK at C:\Installations\AndroidSDK\
    • Android NDK location not configured (optional; useful for native profiling support)
    • Platform android-29, build-tools 29.0.2
    • ANDROID_HOME = C:\Installations\AndroidSDK\
    • Java binary at: C:\Installations\Android Studio\jre\bin\java
    • Java version OpenJDK Runtime Environment (build 1.8.0_202-release-1483-b03)
    • All Android licenses accepted.

[√] Android Studio (version 3.5)
    • Android Studio at C:\Installations\Android Studio
    • Flutter plugin version 40.2.2
    • Dart plugin version 191.8580
    • Java version OpenJDK Runtime Environment (build 1.8.0_202-release-1483-b03)

[√] Connected device (1 available)
    • SM G970F • [xxxxx] • android-arm64 • Android 9 (API 28)

• No issues found!

Edit2：