Java Flatter android应用程序在签署发布后尝试调试时崩溃

我是新来的颤振和建设一个颤振应用程序作为学校项目的一部分。我的团队和我正在构建ios、android和web应用程序版本，我的任务是生成并签署我的应用程序包，以便在google play中发布。我成功地签署了捆绑包并上传了项目。我无法在模拟器上测试发布版本，但这是另一个可能相关的问题

说到这里，我现在在调试我的应用程序时遇到了一个问题。在重命名和配置构建类型之前没有问题，我只是使用默认的应用程序ID并在VScode中运行调试器。我的应用程序似乎构建成功（我想是因为我没有收到错误），但它没有正确安装在模拟器上。我在模拟中收到一个弹出通知，不幸的是应用程序一直关闭。在捕获日志中，我看到“等待天文台端口可用…”

我已重置模拟器，清理并重建颤振。我曾尝试在android studio中运行/清理/构建（调试），但没有效果

以下是捕获日志。我没有把它们全部包括在内，因为看起来应用程序正在正确构建

                   A: android:name(0x01010003)="com.google.android.gms.measurement.AppMeasurementReceiver" (Raw: "com.google.android.gms.measurement.AppMeasurementReceiver")
                   A: android:enabled(0x0101000e)=(type 0x12)0xffffffff
                   A: android:exported(0x01010010)=(type 0x12)0x0
                 E: receiver (line=177)
                   A: android:name(0x01010003)="com.google.android.gms.measurement.AppMeasurementInstallReferrerReceiver" (Raw: "com.google.android.gms.measurement.AppMeasurementInstallReferrerReceiver")
                   A: android:permission(0x01010006)="android.permission.INSTALL_PACKAGES" (Raw: "android.permission.INSTALL_PACKAGES")
                   A: android:enabled(0x0101000e)=(type 0x12)0xffffffff
                   A: android:exported(0x01010010)=(type 0x12)0xffffffff
                   E: intent-filter (line=182)
                     E: action (line=183)
                       A: android:name(0x01010003)="com.android.vending.INSTALL_REFERRER" (Raw: "com.android.vending.INSTALL_REFERRER")
                 E: service (line=187)
                   A: android:name(0x01010003)="com.google.android.gms.measurement.AppMeasurementService" (Raw: "com.google.android.gms.measurement.AppMeasurementService")
                   A: android:enabled(0x0101000e)=(type 0x12)0xffffffff
                   A: android:exported(0x01010010)=(type 0x12)0x0
                 E: service (line=191)
                   A: android:name(0x01010003)="com.google.android.gms.measurement.AppMeasurementJobService" (Raw: "com.google.android.gms.measurement.AppMeasurementJobService")
                   A: android:permission(0x01010006)="android.permission.BIND_JOB_SERVICE" (Raw: "android.permission.BIND_JOB_SERVICE")
                   A: android:enabled(0x0101000e)=(type 0x12)0xffffffff
                   A: android:exported(0x01010010)=(type 0x12)0x0
                 E: provider (line=197)
                   A: android:name(0x01010003)="com.google.firebase.provider.FirebaseInitProvider" (Raw: "com.google.firebase.provider.FirebaseInitProvider")
                   A: android:exported(0x01010010)=(type 0x12)0x0
                   A: android:authorities(0x01010018)="com.sensationalscience.sensational_science.firebaseinitprovider" (Raw: "com.sensationalscience.sensational_science.firebaseinitprovider")
                   A: android:initOrder(0x0101001a)=(type 0x10)0x64
                 E: meta-data (line=203)
                   A: android:name(0x01010003)="com.google.android.gms.version" (Raw: "com.google.android.gms.version")
                   A: android:value(0x01010024)=@0x7f080004
[12:19:52 PM] [FlutterRun] [Info] [Flutter] <== [   +6 ms] Stopping app 'app.apk' on Android SDK built for x86.
[12:19:52 PM] [FlutterRun] [Info] [Flutter] <== [        ] executing: C:\Users\Lauren\AppData\Local\Android\sdk\platform-tools\adb.exe -s emulator-5554 shell am force-stop com.sensationalscience.sensational_science
[12:19:52 PM] [FlutterRun] [Info] [Flutter] <== [  +44 ms] executing: C:\Users\Lauren\AppData\Local\Android\sdk\platform-tools\adb.exe -s emulator-5554 shell pm list packages com.sensationalscience.sensational_science
[12:19:52 PM] [FlutterRun] [Info] [Flutter] <== [ +215 ms] package:com.sensationalscience.sensational_science
[12:19:52 PM] [FlutterRun] [Info] [Flutter] <== [   +2 ms] executing: C:\Users\Lauren\AppData\Local\Android\sdk\platform-tools\adb.exe -s emulator-5554 shell cat /data/local/tmp/sky.com.sensationalscience.sensational_science.sha1
[12:19:52 PM] [FlutterRun] [Info] [Flutter] <== [  +24 ms] 2ef7da51e6c1f4f4170671be4372471e59f61ee6
[12:19:52 PM] [FlutterRun] [Info] [Flutter] <== [        ] Installing APK.
[12:19:52 PM] [FlutterRun] [Info] [Flutter] <== [   +1 ms] executing: C:\Users\Lauren\AppData\Local\Android\sdk\platform-tools\adb.exe version
[12:19:52 PM] [FlutterRun] [Info] [Flutter] <== [  +16 ms] Android Debug Bridge version 1.0.41
[12:19:52 PM] [FlutterRun] [Info] [Flutter] <==            Version 29.0.6-6198805
[12:19:52 PM] [FlutterRun] [Info] [Flutter] <==            Installed as C:\Users\Lauren\AppData\Local\Android\sdk\platform-tools\adb.exe
[12:19:52 PM] [FlutterRun] [Info] [Flutter] <== [        ] executing: C:\Users\Lauren\AppData\Local\Android\sdk\platform-tools\adb.exe start-server
[12:19:52 PM] [FlutterRun] [Info] [Flutter] <== [{"event":"app.progress","params":{"appId":"bc8e3997-0174-4387-ae07-3b6f69cdc04d","id":"1","progressId":null,"message":"Installing build\\app\\outputs\\apk\\app.apk..."}}]
[12:19:52 PM] [FlutterRun] [Info] [Flutter] <== [  +17 ms] executing: C:\Users\Lauren\AppData\Local\Android\sdk\platform-tools\adb.exe -s emulator-5554 install -t -r C:\Users\Lauren\Documents\School\467\sensational_science\build\app\outputs\apk\app.apk
[12:19:56 PM] [FlutterRun] [Info] [Flutter] <== [+3493 ms] Performing Streamed Install
[12:19:56 PM] [FlutterRun] [Info] [Flutter] <==            Success
[12:19:56 PM] [FlutterRun] [Info] [Flutter] <== [{"event":"app.progress","params":{"appId":"bc8e3997-0174-4387-ae07-3b6f69cdc04d","id":"1","progressId":null,"finished":true}}]
[12:19:56 PM] [FlutterRun] [Info] [Flutter] <== [   +1 ms] executing: C:\Users\Lauren\AppData\Local\Android\sdk\platform-tools\adb.exe -s emulator-5554 shell echo -n cc0ff10c7a448e68c958b5ace7858fca4554ee4e > /data/local/tmp/sky.com.sensationalscience.sensational_science.sha1
[12:19:56 PM] [FlutterRun] [Info] [Flutter] <== [  +31 ms] Android SDK built for x86 startApp
[12:19:56 PM] [FlutterRun] [Info] [Flutter] <== [   +2 ms] executing: C:\Users\Lauren\AppData\Local\Android\sdk\platform-tools\adb.exe -s emulator-5554 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 --ez start-paused true com.sensationalscience.sensational_science/com.sensationalscience.sensational_science.MainActivity
[12:19:56 PM] [FlutterRun] [Info] [Flutter] <== [  +95 ms] Starting: Intent { act=android.intent.action.RUN flg=0x20000000 cmp=com.sensationalscience.sensational_science/.MainActivity (has extras) }
[12:19:56 PM] [FlutterRun] [Info] [Flutter] <== [        ] Waiting for observatory port to be available...
Tue May 05 2020 [12:23:20 GMT-0600 (Mountain Daylight Time)] Log file ended

这是我的android清单。我想知道主要问题是否在这里。我不太清楚该文件的确切位置/内容，在捕获日志的末尾，有一个起始意图处的引用。 `` 编辑：我添加到捕获日志中

编辑：添加android studio崩溃详细信息：

  --------- beginning of crash
2020-05-05 13:37:49.148 13524-13524/com.sensationalscience.sensational_science E/AndroidRuntime: FATAL EXCEPTION: main
    Process: com.sensationalscience.sensational_science, PID: 13524
    java.lang.RuntimeException: Unable to instantiate activity ComponentInfo{com.sensationalscience.sensational_science/com.sensationalscience.sensational_science.MainActivity}: java.lang.ClassNotFoundException: Didn't find class "com.sensationalscience.sensational_science.MainActivity" on path: DexPathList[[zip file "/data/app/com.sensationalscience.sensational_science-TWyC0kIWuswGoy1G-VAtCQ==/base.apk"],nativeLibraryDirectories=[/data/app/com.sensationalscience.sensational_science-TWyC0kIWuswGoy1G-VAtCQ==/lib/x86, /data/app/com.sensationalscience.sensational_science-TWyC0kIWuswGoy1G-VAtCQ==/base.apk!/lib/x86, /system/lib, /vendor/lib]]
        at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2718)
        at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2892)
        at android.app.ActivityThread.-wrap11(Unknown Source:0)
        at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1593)
        at android.os.Handler.dispatchMessage(Handler.java:105)
        at android.os.Looper.loop(Looper.java:164)
        at android.app.ActivityThread.main(ActivityThread.java:6541)
        at java.lang.reflect.Method.invoke(Native Method)
        at com.android.internal.os.Zygote$MethodAndArgsCaller.run(Zygote.java:240)
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:767)
     Caused by: java.lang.ClassNotFoundException: Didn't find class "com.sensationalscience.sensational_science.MainActivity" on path: DexPathList[[zip file "/data/app/com.sensationalscience.sensational_science-TWyC0kIWuswGoy1G-VAtCQ==/base.apk"],nativeLibraryDirectories=[/data/app/com.sensationalscience.sensational_science-TWyC0kIWuswGoy1G-VAtCQ==/lib/x86, /data/app/com.sensationalscience.sensational_science-TWyC0kIWuswGoy1G-VAtCQ==/base.apk!/lib/x86, /system/lib, /vendor/lib]]
        at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:93)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:379)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:312)
        at android.app.Instrumentation.newActivity(Instrumentation.java:1173)
        at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2708)
        at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2892) 
        at android.app.ActivityThread.-wrap11(Unknown Source:0) 
        at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1593) 
        at android.os.Handler.dispatchMessage(Handler.java:105) 
        at android.os.Looper.loop(Looper.java:164) 
        at android.app.ActivityThread.main(ActivityThread.java:6541) 
        at java.lang.reflect.Method.invoke(Native Method) 
        at com.android.internal.os.Zygote$MethodAndArgsCaller.run(Zygote.java:240) 
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:767) 

---

我已经解决了这个问题。当我更改应用程序名称/ID时，我意外地更改了MainActivity.java类名。我把班级名称从“感觉科学”改为“主要活动”

package com.sensationalscience.sensational_science

import io.flutter.embedding.android.FlutterActivity

class MainActivity: FlutterActivity() {
}

---

我已经解决了这个问题。当我更改应用程序名称/ID时，我意外地更改了MainActivity.java类名。我把班级名称从“感觉科学”改为“主要活动”

package com.sensationalscience.sensational_science

import io.flutter.embedding.android.FlutterActivity

class MainActivity: FlutterActivity() {
}

---

尝试在清单文件中添加

。遇到相同问题。我在android studio中进行了调试，得到了更有用的响应。我将用它编辑我的帖子。这样更好，即时运行可能是问题所在，请查看此帖子：我在该页面上找不到解决方案，但我确实注意到build build\app\outputs\apk\debug\app-debug.apk。与它安装的内容无关。注意它是一个apk而不是调试apk安装build\app\outputs\apk\app.apk…当我在主分支上运行调试（尚未合并更改）时，它正确地生成调试apk，然后安装调试apk。我想知道为什么它没有安装调试apk？尝试在清单文件中添加

。遇到同样的问题。我在android studio中进行了调试，得到了更有用的响应。我将用它编辑我的帖子。这样更好，即时运行可能是问题所在，请查看此帖子：我在该页面上找不到解决方案，但我确实注意到build build\app\outputs\apk\debug\app-debug.apk。与它安装的内容无关。注意它是一个apk而不是调试apk安装build\app\outputs\apk\app.apk…当我在主分支上运行调试（尚未合并更改）时，它正确地生成调试apk，然后安装调试apk。我想知道为什么它没有安装调试apk？

  --------- beginning of crash
2020-05-05 13:37:49.148 13524-13524/com.sensationalscience.sensational_science E/AndroidRuntime: FATAL EXCEPTION: main
    Process: com.sensationalscience.sensational_science, PID: 13524
    java.lang.RuntimeException: Unable to instantiate activity ComponentInfo{com.sensationalscience.sensational_science/com.sensationalscience.sensational_science.MainActivity}: java.lang.ClassNotFoundException: Didn't find class "com.sensationalscience.sensational_science.MainActivity" on path: DexPathList[[zip file "/data/app/com.sensationalscience.sensational_science-TWyC0kIWuswGoy1G-VAtCQ==/base.apk"],nativeLibraryDirectories=[/data/app/com.sensationalscience.sensational_science-TWyC0kIWuswGoy1G-VAtCQ==/lib/x86, /data/app/com.sensationalscience.sensational_science-TWyC0kIWuswGoy1G-VAtCQ==/base.apk!/lib/x86, /system/lib, /vendor/lib]]
        at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2718)
        at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2892)
        at android.app.ActivityThread.-wrap11(Unknown Source:0)
        at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1593)
        at android.os.Handler.dispatchMessage(Handler.java:105)
        at android.os.Looper.loop(Looper.java:164)
        at android.app.ActivityThread.main(ActivityThread.java:6541)
        at java.lang.reflect.Method.invoke(Native Method)
        at com.android.internal.os.Zygote$MethodAndArgsCaller.run(Zygote.java:240)
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:767)
     Caused by: java.lang.ClassNotFoundException: Didn't find class "com.sensationalscience.sensational_science.MainActivity" on path: DexPathList[[zip file "/data/app/com.sensationalscience.sensational_science-TWyC0kIWuswGoy1G-VAtCQ==/base.apk"],nativeLibraryDirectories=[/data/app/com.sensationalscience.sensational_science-TWyC0kIWuswGoy1G-VAtCQ==/lib/x86, /data/app/com.sensationalscience.sensational_science-TWyC0kIWuswGoy1G-VAtCQ==/base.apk!/lib/x86, /system/lib, /vendor/lib]]
        at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:93)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:379)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:312)
        at android.app.Instrumentation.newActivity(Instrumentation.java:1173)
        at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2708)
        at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2892) 
        at android.app.ActivityThread.-wrap11(Unknown Source:0) 
        at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1593) 
        at android.os.Handler.dispatchMessage(Handler.java:105) 
        at android.os.Looper.loop(Looper.java:164) 
        at android.app.ActivityThread.main(ActivityThread.java:6541) 
        at java.lang.reflect.Method.invoke(Native Method) 
        at com.android.internal.os.Zygote$MethodAndArgsCaller.run(Zygote.java:240) 
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:767) 

package com.sensationalscience.sensational_science

import io.flutter.embedding.android.FlutterActivity

class MainActivity: FlutterActivity() {
}