fix: java.lang.ClassNotFoundException: Didn't find class "com.example.verygoodcore.MainActivity"

[ketulrastogi]

Description
A newly created app doesn't run for Development, Staging, or Production environment. It always returns ClassNotFoundException

Steps To Reproduce

1. Generate a new app using Very_Good_Cli version 0.4.4 and run it in any environment.

Outputs

1. Flutter Doctor
   `Doctor summary (to see all details, run flutter doctor -v):
   [✓] Flutter (Channel stable, 2.5.1, on Microsoft Windows [Version 10.0.19043.1237], locale en-IN)
   [✓] Android toolchain - develop for Android devices (Android SDK version 30.0.3)
   [✓] Chrome - develop for the web
   [✓] Android Studio (version 4.1)
   [✓] VS Code
   [✓] VS Code, 64-bit edition (version 1.60.2)
   [✓] Connected device (3 available)

• No issues found!`

2. Very Good Cli Version: 0.4.4

3. Flutter Run
   [ +156 ms] executing: [C:\flutter/] git -c log.showSignature=false log -n 1 --pretty=format:%H
   [+1149 ms] Exit code 0 from: git -c log.showSignature=false log -n 1 --pretty=format:%H
   [ ] ffb2ecea5223acdd139a5039be2f9c796962833d
   [ +1 ms] executing: [C:\flutter/] git tag --points-at ffb2ecea5223acdd139a5039be2f9c796962833d
   [ +221 ms] Exit code 0 from: git tag --points-at ffb2ecea5223acdd139a5039be2f9c796962833d
   [ ] 2.5.1
   [ +19 ms] executing: [C:\flutter/] git rev-parse --abbrev-ref --symbolic @{u}
   [ +91 ms] Exit code 0 from: git rev-parse --abbrev-ref --symbolic @{u}
   [ ] origin/stable
   [ ] executing: [C:\flutter/] git ls-remote --get-url origin
   [ +75 ms] Exit code 0 from: git ls-remote --get-url origin
   [ ] https://github.com/flutter/flutter.git
   [ +227 ms] executing: [C:\flutter/] git rev-parse --abbrev-ref HEAD
   [ +82 ms] Exit code 0 from: git rev-parse --abbrev-ref HEAD
   [ ] stable
   [ +128 ms] Artifact Instance of 'AndroidGenSnapshotArtifacts' is not required, skipping update.
   [ ] Artifact Instance of 'AndroidInternalBuildArtifacts' is not required, skipping update.
   [ ] Artifact Instance of 'IOSEngineArtifacts' is not required, skipping update.
   [ ] Artifact Instance of 'FlutterWebSdk' is not required, skipping update.
   [ +9 ms] Artifact Instance of 'WindowsEngineArtifacts' is not required, skipping update.
   [ ] Artifact Instance of 'WindowsUwpEngineArtifacts' is not required, skipping update.
   [ ] Artifact Instance of 'MacOSEngineArtifacts' is not required, skipping update.
   [ ] Artifact Instance of 'LinuxEngineArtifacts' is not required, skipping update.
   [ ] Artifact Instance of 'LinuxFuchsiaSDKArtifacts' is not required, skipping update.
   [ ] Artifact Instance of 'MacOSFuchsiaSDKArtifacts' is not required, skipping update.
   [ ] Artifact Instance of 'FlutterRunnerSDKArtifacts' is not required, skipping update.
   [ ] Artifact Instance of 'FlutterRunnerDebugSymbols' is not required, skipping update.
   [ +142 ms] executing: C:\Users\KetulRastogi\AppData\Local\Android\sdk\platform-tools\adb.exe devices -l
   [ +100 ms] List of devices attached
   HS1202017111448 device product:HS117 model:Capture_ device:rimoB transport_id:3
   [ +14 ms] C:\Users\KetulRastogi\AppData\Local\Android\sdk\platform-tools\adb.exe -s HS1202017111448 shell getprop
   [ +108 ms] Artifact Instance of 'AndroidInternalBuildArtifacts' is not required, skipping update.
   [ ] Artifact Instance of 'IOSEngineArtifacts' is not required, skipping update.
   [ ] Artifact Instance of 'FlutterWebSdk' is not required, skipping update.
   [ +5 ms] Artifact Instance of 'WindowsEngineArtifacts' is not required, skipping update.
   [ ] Artifact Instance of 'WindowsUwpEngineArtifacts' is not required, skipping update.
   [ ] Artifact Instance of 'MacOSEngineArtifacts' is not required, skipping update.
   [ ] Artifact Instance of 'LinuxEngineArtifacts' is not required, skipping update.
   [ ] Artifact Instance of 'LinuxFuchsiaSDKArtifacts' is not required, skipping update.
   [ ] Artifact Instance of 'MacOSFuchsiaSDKArtifacts' is not required, skipping update.
   [ ] Artifact Instance of 'FlutterRunnerSDKArtifacts' is not required, skipping update.
   [ ] Artifact Instance of 'FlutterRunnerDebugSymbols' is not required, skipping update.
   [ +191 ms] Initializing file store
   [ +22 ms] Done initializing file store
   [ +56 ms] Skipping target: gen_localizations
   [ +3 ms] Persisting file store
   [ +9 ms] Done persisting file store
   [ +18 ms] Skipping pub get: version match.
   [ +418 ms] Generating D:\KetulRastogi\Samples\sampleapp\android\app\src\main\java\io\flutter\plugins\GeneratedPluginRegistrant.java
   [ +128 ms] ro.hardware = qcom
   [ +114 ms] Initializing file store
   [ ] Done initializing file store
   [ +12 ms] gen_localizations: Starting due to {InvalidatedReasonKind.inputChanged: The following inputs have updated contents: C:\flutter\packages\flutter_tools\lib\src\build_system\targets\localizations.dart,D:\KetulRastogi\Samples\sampleapp\l10n.yaml,D:\KetulRastogi\Samples\sampleapp\lib/l10n/arb\app_en.arb,D:\KetulRastogi\Samples\sampleapp\lib/l10n/arb\app_es.arb,D:\KetulRastogi\Samples\sampleapp.dart_tool\flutter_gen\gen_l10n\app_localizations_en.dart,D:\KetulRastogi\Samples\sampleapp.dart_tool\flutter_gen\gen_l10n\app_localizations_es.dart,D:\KetulRastogi\Samples\sampleapp.dart_tool\flutter_gen\gen_l10n\app_localizations.dart}
   [ +234 ms] Skipping target: gen_dart_plugin_registrant
   [ +2 ms] gen_localizations: Complete
   [ +5 ms] Skipping target: _composite
   [ +4 ms] complete
   [ +10 ms] Launching lib/main_production.dart on Capture in debug mode...
   [ +12 ms] C:\flutter\bin\cache\dart-sdk\bin\dart.exe --disable-dart-dev C:\flutter\bin\cache\artifacts\engine\windows-x64\frontend_server.dart.snapshot --sdk-root C:\flutter\bin\cache\artifacts\engine\common\flutter_patched_sdk/ --incremental --target=flutter --debugger-module-names --experimental-emit-debug-metadata -Dflutter.inspector.structuredErrors=true -DFLUTTER_WEB_AUTO_DETECT=true --output-dill C:\Users\KETULR~1\AppData\Local\Temp\flutter_tools.94ba1848\flutter_tool.b36a6705\app.dill --packages D:\KetulRastogi\Samples\sampleapp.dart_tool\package_config.json -Ddart.vm.profile=false -Ddart.vm.product=false --enable-asserts --track-widget-creation --filesystem-scheme org-dartlang-root --initialize-from-dill build\4f2a58af27abc49ecf55570043bbf938.cache.dill.track.dill --enable-experiment=alternative-invalidation-strategy
   [ +17 ms] executing: C:\Users\KetulRastogi\AppData\Local\Android\sdk\build-tools\30.0.3\aapt dump xmltree D:\KetulRastogi\Samples\sampleapp\build\app\outputs\flutter-apk\app.apk AndroidManifest.xml
   [ +171 ms] Exit code 0 from: C:\Users\KetulRastogi\AppData\Local\Android\sdk\build-tools\30.0.3\aapt dump xmltree D:\KetulRastogi\Samples\sampleapp\build\app\outputs\flutter-apk\app.apk AndroidManifest.xml
   [ ] N: android=http://schemas.android.com/apk/res/android
   E: manifest (line=2)
   A: android:versionCode(0x0101021b)=(type 0x10)0x1
   A: android:versionName(0x0101021c)="1.0.0" (Raw: "1.0.0")
   A: android:compileSdkVersion(0x01010572)=(type 0x10)0x1e
   A: android:compileSdkVersionCodename(0x01010573)="11" (Raw: "11")
   A: package="com.example.verygoodcore.dev" (Raw: "com.example.verygoodcore.dev")
   A: platformBuildVersionCode=(type 0x10)0x1e
   A: platformBuildVersionName=(type 0x10)0xb
   E: uses-sdk (line=7)
   A: android:minSdkVersion(0x0101020c)=(type 0x10)0x10
   A: android:targetSdkVersion(0x01010270)=(type 0x10)0x1e
   E: uses-permission (line=14)
   A: android:name(0x01010003)="android.permission.INTERNET" (Raw: "android.permission.INTERNET")
   E: application (line=16)
   A: android:label(0x01010001)="Sampleapp" (Raw: "Sampleapp")
   A: android:icon(0x01010002)=@0x7f080000
   A: android:debuggable(0x0101000f)=(type 0x12)0xffffffff
   A: android:appComponentFactory(0x0101057a)="androidx.core.app.CoreComponentFactory" (Raw: "androidx.core.app.CoreComponentFactory")
   E: activity (line=21)
   A: android:theme(0x01010000)=@0x7f0a0000
   A: android:name(0x01010003)="com.example.verygoodcore.MainActivity" (Raw: "com.example.verygoodcore.MainActivity")
   A: android:launchMode(0x0101001d)=(type 0x10)0x1
   A: android:configChanges(0x0101001f)=(type 0x11)0x40003fb4
   A: android:windowSoftInputMode(0x0101022b)=(type 0x11)0x10
   A: android:hardwareAccelerated(0x010102d3)=(type 0x12)0xffffffff
   E: meta-data (line=35)
   A: android:name(0x01010003)="io.flutter.embedding.android.NormalTheme" (Raw: "io.flutter.embedding.android.NormalTheme")
   A: android:resource(0x01010025)=@0x7f0a0001
   E: meta-data (line=45)
   A: android:name(0x01010003)="io.flutter.embedding.android.SplashScreenDrawable" (Raw: "io.flutter.embedding.android.SplashScreenDrawable")
   A: android:resource(0x01010025)=@0x7f040003
   E: intent-filter (line=49)
   E: action (line=50)
   A: android:name(0x01010003)="android.intent.action.MAIN" (Raw: "android.intent.action.MAIN")
   E: category (line=52)
   A: android:name(0x01010003)="android.intent.category.LAUNCHER" (Raw: "android.intent.category.LAUNCHER")
   E: meta-data (line=59)
   A: android:name(0x01010003)="flutterEmbedding" (Raw: "flutterEmbedding")
   A: android:value(0x01010024)=(type 0x10)0x2
   [ +13 ms] executing: C:\Users\KetulRastogi\AppData\Local\Android\sdk\platform-tools\adb.exe -s HS1202017111448 shell -x logcat -v time -t 1
   [ +24 ms] <- compile package:sampleapp/main_production.dart
   [ +238 ms] --------- beginning of main
   09-30 11:55:47.370 D/KeyguardUpdateMonitor( 2030): handleBatteryUpdate
   [ +22 ms] executing: C:\Users\KetulRastogi\AppData\Local\Android\sdk\platform-tools\adb.exe version
   [ +51 ms] Android Debug Bridge version 1.0.41
   Version 30.0.4-6686687
   Installed as C:\Users\KetulRastogi\AppData\Local\Android\sdk\platform-tools\adb.exe
   [ +4 ms] executing: C:\Users\KetulRastogi\AppData\Local\Android\sdk\platform-tools\adb.exe start-server
   [ +108 ms] Building APK
   [ +41 ms] Using gradle from D:\KetulRastogi\Samples\sampleapp\android\gradlew.bat.
   [ +12 ms] executing: C:\Program Files\Android\Android Studio\jre\bin\java -version
   [+2381 ms] Exit code 0 from: C:\Program Files\Android\Android Studio\jre\bin\java -version
   [ ] openjdk version "1.8.0_242-release"
   OpenJDK Runtime Environment (build 1.8.0_242-release-1644-b01)
   OpenJDK 64-Bit Server VM (build 25.242-b01, mixed mode)
   [ +2 ms] executing: [D:\KetulRastogi\Samples\sampleapp\android/] D:\KetulRastogi\Samples\sampleapp\android\gradlew.bat -Pverbose=true -Ptarget-platform=android-arm64 -Ptarget=D:\KetulRastogi\Samples\sampleapp\lib/main_production.dart -Pdart-defines=Zmx1dHRlci5pbnNwZWN0b3Iuc3RydWN0dXJlZEVycm9ycz10cnVl,RkxVVFRFUl9XRUJfQVVUT19ERVRFQ1Q9dHJ1ZQ== -Pdart-obfuscation=false -Ptrack-widget-creation=true -Ptree-shake-icons=false -Pfilesystem-scheme=org-dartlang-root assembleProductionDebug
   [+3759 ms] > Configure project :app
   [ ] WARNING: DSL element 'useProguard' is obsolete.
   [ ] It will be removed in version 5.0 of the Android Gradle plugin.
   [ ] Use 'android.enableR8' in gradle.properties to switch between R8 and Proguard.
   [+4781 ms] > Task :app:compileFlutterBuildProductionDebug
   [ ] [ +195 ms] executing: [C:\flutter/] git -c log.showSignature=false log -n 1 --pretty=format:%H
   [+1298 ms] [+1294 ms] Exit code 0 from: git -c log.showSignature=false log -n 1 --pretty=format:%H
   [ ] [ ] ffb2ecea5223acdd139a5039be2f9c796962833d
   [ ] [ +1 ms] executing: [C:\flutter/] git tag --points-at ffb2ecea5223acdd139a5039be2f9c796962833d
   [ +93 ms] [ +107 ms] Exit code 0 from: git tag --points-at ffb2ecea5223acdd139a5039be2f9c796962833d
   [ ] [ ] 2.5.1
   [ ] [ +17 ms] executing: [C:\flutter/] git rev-parse --abbrev-ref --symbolic @{u}
   [ +110 ms] [ +97 ms] Exit code 0 from: git rev-parse --abbrev-ref --symbolic @{u}
   [ ] [ ] origin/stable
   [ ] [ ] executing: [C:\flutter/] git ls-remote --get-url origin
   [ +95 ms] [ +79 ms] Exit code 0 from: git ls-remote --get-url origin
   [ ] [ ] https://github.com/flutter/flutter.git
   [ +203 ms] [ +134 ms] executing: [C:\flutter/] git rev-parse --abbrev-ref HEAD
   [ ] [ +94 ms] Exit code 0 from: git rev-parse --abbrev-ref HEAD
   [ ] [ ] stable
   [ +191 ms] [ +116 ms] Artifact Instance of 'AndroidGenSnapshotArtifacts' is not required, skipping update.
   [ ] [ ] Artifact Instance of 'AndroidInternalBuildArtifacts' is not required, skipping update.
   [ ] [ ] Artifact Instance of 'IOSEngineArtifacts' is not required, skipping update.
   [ ] [ ] Artifact Instance of 'FlutterWebSdk' is not required, skipping update.
   [ ] [ +7 ms] Artifact Instance of 'WindowsEngineArtifacts' is not required, skipping update.
   [ ] [ ] Artifact Instance of 'WindowsUwpEngineArtifacts' is not required, skipping update.
   [ ] [ ] Artifact Instance of 'MacOSEngineArtifacts' is not required, skipping update.
   [ ] [ ] Artifact Instance of 'LinuxEngineArtifacts' is not required, skipping update.
   [ ] [ ] Artifact Instance of 'LinuxFuchsiaSDKArtifacts' is not required, skipping update.
   [ ] [ ] Artifact Instance of 'MacOSFuchsiaSDKArtifacts' is not required, skipping update.
   [ ] [ ] Artifact Instance of 'FlutterRunnerSDKArtifacts' is not required, skipping update.
   [ ] [ ] Artifact Instance of 'FlutterRunnerDebugSymbols' is not required, skipping update.
   [ +202 ms] [ +249 ms] Artifact Instance of 'MaterialFonts' is not required, skipping update.
   [ ] [ ] Artifact Instance of 'GradleWrapper' is not required, skipping update.
   [ ] [ +9 ms] Artifact Instance of 'AndroidInternalBuildArtifacts' is not required, skipping update.
   [ ] [ ] Artifact Instance of 'IOSEngineArtifacts' is not required, skipping update.
   [ ] [ ] Artifact Instance of 'FlutterWebSdk' is not required, skipping update.
   [ ] [ ] Artifact Instance of 'FlutterSdk' is not required, skipping update.
   [ ] [ ] Artifact Instance of 'WindowsEngineArtifacts' is not required, skipping update.
   [ ] [ ] Artifact Instance of 'WindowsUwpEngineArtifacts' is not required, skipping update.
   [ ] [ ] Artifact Instance of 'MacOSEngineArtifacts' is not required, skipping update.
   [ ] [ ] Artifact Instance of 'LinuxEngineArtifacts' is not required, skipping update.
   [ ] [ ] Artifact Instance of 'LinuxFuchsiaSDKArtifacts' is not required, skipping update.
   [ ] [ ] Artifact Instance of 'MacOSFuchsiaSDKArtifacts' is not required, skipping update.
   [ ] [ ] Artifact Instance of 'FlutterRunnerSDKArtifacts' is not required, skipping update.
   [ ] [ ] Artifact Instance of 'FlutterRunnerDebugSymbols' is not required, skipping update.
   [ ] [ ] Artifact Instance of 'IosUsbArtifacts' is not required, skipping update.
   [ ] [ ] Artifact Instance of 'IosUsbArtifacts' is not required, skipping update.
   [ ] [ ] Artifact Instance of 'IosUsbArtifacts' is not required, skipping update.
   [ ] [ ] Artifact Instance of 'IosUsbArtifacts' is not required, skipping update.
   [ ] [ ] Artifact Instance of 'IosUsbArtifacts' is not required, skipping update.
   [ ] [ ] Artifact Instance of 'FontSubsetArtifacts' is not required, skipping update.
   [ ] [ ] Artifact Instance of 'PubDependencies' is not required, skipping update.
   [ +91 ms] [ +107 ms] Initializing file store
   [ +95 ms] [ +50 ms] gen_localizations: Starting due to {}
   [ +300 ms] [ +297 ms] Skipping target: gen_dart_plugin_registrant
   [ ] [ +5 ms] gen_localizations: Complete
   [ ] [ +15 ms] kernel_snapshot: Starting due to {}
   [ ] [ +29 ms] C:\flutter\bin\cache\dart-sdk\bin\dart.exe --disable-dart-dev C:\flutter\bin\cache\artifacts\engine\windows-x64\frontend_server.dart.snapshot --sdk-root C:\flutter\bin\cache\artifacts\engine\common\flutter_patched_sdk/ --target=flutter --no-print-incremental-dependencies -Dflutter.inspector.structuredErrors=true -DFLUTTER_WEB_AUTO_DETECT=true -Ddart.vm.profile=false -Ddart.vm.product=false --enable-asserts --track-widget-creation --no-link-platform --packages D:\KetulRastogi\Samples\sampleapp.dart_tool\package_config.json --output-dill D:\KetulRastogi\Samples\sampleapp.dart_tool\flutter_build\c7f665df265046e023a120a3c3419db5\app.dill --depfile D:\KetulRastogi\Samples\sampleapp.dart_tool\flutter_build\c7f665df265046e023a120a3c3419db5\kernel_snapshot.d package:sampleapp/main_production.dart
   [+25300 ms] [+25298 ms] kernel_snapshot: Complete
   [+1795 ms] [+1738 ms] debug_android_application: Starting due to {}
   [ +507 ms] [ +518 ms] debug_android_application: Complete
   [+1497 ms] [+1544 ms] Persisting file store
   [ +95 ms] [ +19 ms] Done persisting file store
   [ ] [ +24 ms] build succeeded.
   [ ] [ +31 ms] "flutter assemble" took 29,966ms.
   [ +311 ms] [ +260 ms] ensureAnalyticsSent: 254ms
   [ ] [ +2 ms] Running shutdown hooks
   [ ] [ ] Shutdown hooks complete
   [ ] [ ] exiting with code 0
   [ +790 ms] > Task :app:packLibsflutterBuildProductionDebug
   [ ] > Task :app:preBuild UP-TO-DATE
   [ ] > Task :app:preProductionDebugBuild UP-TO-DATE
   [ ] > Task :app:compileProductionDebugAidl NO-SOURCE
   [ ] > Task :app:compileProductionDebugRenderscript NO-SOURCE
   [ +108 ms] > Task :app:generateProductionDebugBuildConfig
   [ +95 ms] > Task :app:checkProductionDebugAarMetadata
   [ ] > Task :app:cleanMergeProductionDebugAssets UP-TO-DATE
   [ ] > Task :app:mergeProductionDebugShaders
   [ ] > Task :app:compileProductionDebugShaders NO-SOURCE
   [ ] > Task :app:generateProductionDebugAssets UP-TO-DATE
   [ ] > Task :app:mergeProductionDebugAssets
   [ +689 ms] > Task :app:copyFlutterAssetsProductionDebug
   [ ] > Task :app:generateProductionDebugResValues
   [ ] > Task :app:generateProductionDebugResources
   [+3705 ms] > Task :app:createProductionDebugCompatibleScreenManifests
   [ ] > Task :app:extractDeepLinksProductionDebug
   [ +107 ms] > Task :app:processProductionDebugMainManifest
   [ ] > Task :app:processProductionDebugManifest
   [ ] > Task :app:mergeProductionDebugNativeDebugMetadata NO-SOURCE
   [ ] > Task :app:javaPreCompileProductionDebug
   [ +284 ms] > Task :app:checkProductionDebugDuplicateClasses
   [ ] > Task :app:processProductionDebugJavaRes NO-SOURCE
   [ ] > Task :app:mergeProductionDebugJniLibFolders
   [ +109 ms] > Task :app:mergeProductionDebugResources
   [ ] > Task :app:validateSigningProductionDebug
   [ ] > Task :app:processProductionDebugManifestForPackage
   [ ] > Task :app:desugarProductionDebugFileDependencies
   [+1292 ms] > Task :app:compressProductionDebugAssets
   [ +510 ms] > Task :app:processProductionDebugResources
   [ ] > Task :app:compileProductionDebugKotlin
   [ +189 ms] > Task :app:compileProductionDebugJavaWithJavac
   [ ] > Task :app:compileProductionDebugSources
   [ +302 ms] > Task :app:dexBuilderProductionDebug
   [ +899 ms] > Task :app:mergeExtDexProductionDebug
   [ +493 ms] > Task :app:mergeProductionDebugJavaResource
   [ +300 ms] > Task :app:mergeDexProductionDebug
   [+2202 ms] > Task :app:mergeProductionDebugNativeLibs
   [ +600 ms] > Task :app:stripProductionDebugDebugSymbols
   [ ] Unable to strip the following libraries, packaging them as they are: libflutter.so.
   [+3906 ms] > Task :app:packageProductionDebug
   [ +393 ms] > Task :app:assembleProductionDebug
   [ +96 ms] Deprecated Gradle features were used in this build, making it incompatible with Gradle 7.0.
   [ ] Use '--warning-mode all' to show the individual deprecation warnings.
   [ ] See https://docs.gradle.org/6.7/userguide/command_line_interface.html#sec:command_line_warnings
   [ ] BUILD SUCCESSFUL in 57s
   [ +1 ms] 32 actionable tasks: 31 executed, 1 up-to-date
   [+1199 ms] calculateSha: LocalDirectory: 'D:\KetulRastogi\Samples\sampleapp\build\app\outputs\flutter-apk'/app.apk
   [+1669 ms] ✓ Built build\app\outputs\flutter-apk\app-production-debug.apk.
   [ +21 ms] executing: C:\Users\KetulRastogi\AppData\Local\Android\sdk\build-tools\30.0.3\aapt dump xmltree D:\KetulRastogi\Samples\sampleapp\build\app\outputs\flutter-apk\app.apk AndroidManifest.xml
   [ +246 ms] Exit code 0 from: C:\Users\KetulRastogi\AppData\Local\Android\sdk\build-tools\30.0.3\aapt dump xmltree D:\KetulRastogi\Samples\sampleapp\build\app\outputs\flutter-apk\app.apk AndroidManifest.xml
   [ ] N: android=http://schemas.android.com/apk/res/android
   E: manifest (line=2)
   A: android:versionCode(0x0101021b)=(type 0x10)0x1
   A: android:versionName(0x0101021c)="1.0.0" (Raw: "1.0.0")
   A: android:compileSdkVersion(0x01010572)=(type 0x10)0x1e
   A: android:compileSdkVersionCodename(0x01010573)="11" (Raw: "11")
   A: package="com.example.verygoodcore" (Raw: "com.example.verygoodcore")
   A: platformBuildVersionCode=(type 0x10)0x1e
   A: platformBuildVersionName=(type 0x10)0xb
   E: uses-sdk (line=7)
   A: android:minSdkVersion(0x0101020c)=(type 0x10)0x10
   A: android:targetSdkVersion(0x01010270)=(type 0x10)0x1e
   E: uses-permission (line=14)
   A: android:name(0x01010003)="android.permission.INTERNET" (Raw: "android.permission.INTERNET")
   E: application (line=16)
   A: android:label(0x01010001)="Sampleapp" (Raw: "Sampleapp")
   A: android:icon(0x01010002)=@0x7f080000
   A: android:debuggable(0x0101000f)=(type 0x12)0xffffffff
   A: android:appComponentFactory(0x0101057a)="androidx.core.app.CoreComponentFactory" (Raw: "androidx.core.app.CoreComponentFactory")
   E: activity (line=21)
   A: android:theme(0x01010000)=@0x7f0a0000
   A: android:name(0x01010003)="com.example.verygoodcore.MainActivity" (Raw: "com.example.verygoodcore.MainActivity")
   A: android:launchMode(0x0101001d)=(type 0x10)0x1
   A: android:configChanges(0x0101001f)=(type 0x11)0x40003fb4
   A: android:windowSoftInputMode(0x0101022b)=(type 0x11)0x10
   A: android:hardwareAccelerated(0x010102d3)=(type 0x12)0xffffffff
   E: meta-data (line=35)
   A: android:name(0x01010003)="io.flutter.embedding.android.NormalTheme" (Raw: "io.flutter.embedding.android.NormalTheme")
   A: android:resource(0x01010025)=@0x7f0a0001
   E: meta-data (line=45)
   A: android:name(0x01010003)="io.flutter.embedding.android.SplashScreenDrawable" (Raw: "io.flutter.embedding.android.SplashScreenDrawable")
   A: android:resource(0x01010025)=@0x7f040003
   E: intent-filter (line=49)
   E: action (line=50)
   A: android:name(0x01010003)="android.intent.action.MAIN" (Raw: "android.intent.action.MAIN")
   E: category (line=52)
   A: android:name(0x01010003)="android.intent.category.LAUNCHER" (Raw: "android.intent.category.LAUNCHER")
   E: meta-data (line=59)
   A: android:name(0x01010003)="flutterEmbedding" (Raw: "flutterEmbedding")
   A: android:value(0x01010024)=(type 0x10)0x2
   [ +1 ms] Stopping app 'app.apk' on Capture.
   [ ] executing: C:\Users\KetulRastogi\AppData\Local\Android\sdk\platform-tools\adb.exe -s HS1202017111448 shell am force-stop com.example.verygoodcore
   [ +127 ms] executing: C:\Users\KetulRastogi\AppData\Local\Android\sdk\platform-tools\adb.exe -s HS1202017111448 shell pm list packages com.example.verygoodcore
   [ +954 ms] package:com.example.verygoodcore
   package:com.example.verygoodcore.dev
   [ +2 ms] executing: C:\Users\KetulRastogi\AppData\Local\Android\sdk\platform-tools\adb.exe -s HS1202017111448 shell cat /data/local/tmp/sky.com.example.verygoodcore.sha1
   [ +80 ms] 75d512dfc08711a79c2eb218acf30f14f14dd96d
   [ +1 ms] Installing APK.
   [ +2 ms] executing: C:\Users\KetulRastogi\AppData\Local\Android\sdk\platform-tools\adb.exe -s HS1202017111448 install -t -r D:\KetulRastogi\Samples\sampleapp\build\app\outputs\flutter-apk\app.apk
   [+12953 ms] Performing Streamed Install
   Success
   [ +3 ms] executing: C:\Users\KetulRastogi\AppData\Local\Android\sdk\platform-tools\adb.exe -s HS1202017111448 shell echo -n 4eca204772fe8a0c32a45ed47b097aaa5932e773 > /data/local/tmp/sky.com.example.verygoodcore.sha1
   [ +73 ms] executing: C:\Users\KetulRastogi\AppData\Local\Android\sdk\platform-tools\adb.exe -s HS1202017111448 shell -x logcat -v time -t 1
   [ +337 ms] --------- beginning of main
   09-30 11:57:05.660 I/zygote64(27269): The ClassLoaderContext is a special shared library.
   [ +18 ms] executing: C:\Users\KetulRastogi\AppData\Local\Android\sdk\platform-tools\adb.exe -s HS1202017111448 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.example.verygoodcore/com.example.verygoodcore.MainActivity
   [ +217 ms] Starting: Intent { act=android.intent.action.RUN flg=0x20000000 cmp=com.example.verygoodcore/.MainActivity (has extras) }
   [ ] Waiting for observatory port to be available...
   [ +236 ms] E/AndroidRuntime(27337): FATAL EXCEPTION: main
   [ ] E/AndroidRuntime(27337): Process: com.example.verygoodcore, PID: 27337
   [ ] E/AndroidRuntime(27337): java.lang.RuntimeException: Unable to instantiate activity ComponentInfo{com.example.verygoodcore/com.example.verygoodcore.MainActivity}: java.lang.ClassNotFoundException: Didn't find class "com.example.verygoodcore.MainActivity" on path: DexPathList[[zip file "/data/app/com.example.verygoodcore-zlP3FKLF-ydFu_R3b3uM3w==/base.apk"],nativeLibraryDirectories=[/data/app/com.example.verygoodcore-zlP3FKLF-ydFu_R3b3uM3w==/lib/arm64, /data/app/com.example.verygoodcore-zlP3FKLF-ydFu_R3b3uM3w==/base.apk!/lib/arm64-v8a, /system/lib64, /system/vendor/lib64]]
   [ ] E/AndroidRuntime(27337): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2679)
   [ ] E/AndroidRuntime(27337): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2856)
   [ ] E/AndroidRuntime(27337): at android.app.ActivityThread.-wrap11(Unknown Source:0)
   [ ] E/AndroidRuntime(27337): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1589)
   [ ] E/AndroidRuntime(27337): at android.os.Handler.dispatchMessage(Handler.java:106)
   [ ] E/AndroidRuntime(27337): at android.os.Looper.loop(Looper.java:164)
   [ ] E/AndroidRuntime(27337): at android.app.ActivityThread.main(ActivityThread.java:6501)
   [ ] E/AndroidRuntime(27337): at java.lang.reflect.Method.invoke(Native Method)
   [ ] E/AndroidRuntime(27337): at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:438)
   [ ] E/AndroidRuntime(27337): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:807)
   [ ] E/AndroidRuntime(27337): Caused by: java.lang.ClassNotFoundException: Didn't find class "com.example.verygoodcore.MainActivity" on path: DexPathList[[zip file "/data/app/com.example.verygoodcore-zlP3FKLF-ydFu_R3b3uM3w==/base.apk"],nativeLibraryDirectories=[/data/app/com.example.verygoodcore-zlP3FKLF-ydFu_R3b3uM3w==/lib/arm64, /data/app/com.example.verygoodcore-zlP3FKLF-ydFu_R3b3uM3w==/base.apk!/lib/arm64-v8a, /system/lib64, /system/vendor/lib64]]
   [ ] E/AndroidRuntime(27337): at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:125)
   [ ] E/AndroidRuntime(27337): at java.lang.ClassLoader.loadClass(ClassLoader.java:379)
   [ ] E/AndroidRuntime(27337): at java.lang.ClassLoader.loadClass(ClassLoader.java:312)
   [ ] E/AndroidRuntime(27337): at android.app.Instrumentation.newActivity(Instrumentation.java:1175)
   [ ] E/AndroidRuntime(27337): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2669)
   [ ] E/AndroidRuntime(27337): ... 9 more
   Exited (1)

I am not able to run the app. Please help me to fix this.

Thanks
Ketul

[ketulrastogi]

The same happens for Flutter (Channel stable, 2.5.0).

[marcossevilla]

hi @ketulrastogi! The problem is that the CLI isn't generating the MainActivity.kt file, you can add it to android/app/src/main/kotlin/com/example/veryGoodCore/MainActivity.kt with the following content:

package com.example.veryGoodCore

import io.flutter.embedding.android.FlutterActivity

class MainActivity: FlutterActivity() {

}

We're working on a fix so I'll keep you posted on this issue. Thanks for the heads up!

[ketulrastogi]

This fixes it for now.
Please add functionality to create MainActivity.kt using the CLI

Thanks

[marcossevilla]

hi @ketulrastogi, you can update to v0.4.5 to have the fixes for your issue. Thanks again for reporting! 💯

[ketulrastogi]

@felangel @marcossevilla Thanks for the superfast fix for the issue.