Problem

When I run my flutter application it shows below message

Waiting for another flutter command to release the startup lock

and not proceed further.

Solution

Run the following command in Terminal.

For Mac OS

killall -9 dart

For Windows OS

taskkill /F /IM dart.exe

After Executing the Command in Terminal, Close your VS Code and Reopen the Project and let editor to complete all things. Now run your app it will run without any issue.

That’s All.

Thanks for reading.

Keep Coding.

Solution

To change Laravel Passport Access Token length run the below command in terminal.

php artisan passport:keys --length=512 --force

where you can specify your length what you want.

That’s All.

Thanks for Reading.

Keep Coding.

Problem

A problem was found with the configuration of task ‘:google_maps_flutter:createFullJarDebug’ (type ‘ZipMergingTask’).

Launching lib\main.dart on Mi MIX 2 in debug mode...
Parameter format not correct -
Note: C:\Users\susha\AppData\Local\Pub\Cache\hosted\pub.dartlang.org\firebase_core-1.2.0\android\src\main\java\io\flutter\plugins\firebase\core\FlutterFirebaseCorePlugin.java uses or overrides a deprecated API.
Note: Recompile with -Xlint:deprecation for details.
Note: C:\Users\susha\AppData\Local\Pub\Cache\hosted\pub.dartlang.org\firebase_auth-1.2.0\android\src\main\java\io\flutter\plugins\firebase\auth\FlutterFirebaseAuthPlugin.java uses or overrides a deprecated API.
Note: Recompile with -Xlint:deprecation for details.
Note: C:\Users\susha\AppData\Local\Pub\Cache\hosted\pub.dartlang.org\flutter_local_notifications-5.0.0+1\android\src\main\java\com\dexterous\flutterlocalnotifications\FlutterLocalNotificationsPlugin.java uses or overrides a deprecated API.
Note: Recompile with -Xlint:deprecation for details.
Note: C:\Users\susha\AppData\Local\Pub\Cache\hosted\pub.dartlang.org\launch_review-3.0.1\android\src\main\java\com\iyaffle\launchreview\LaunchReviewPlugin.java uses or overrides a deprecated API.
Note: Recompile with -Xlint:deprecation for details.
Note: Some input files use or override a deprecated API.
Note: Recompile with -Xlint:deprecation for details.
Note: C:\Users\susha\AppData\Local\Pub\Cache\hosted\pub.dartlang.org\google_sign_in-4.5.9\android\src\main\java\io\flutter\plugins\googlesignin\GoogleSignInPlugin.java uses or overrides a deprecated API.
Note: Recompile with -Xlint:deprecation for details.
Note: C:\Users\susha\AppData\Local\Pub\Cache\hosted\pub.dartlang.org\google_maps_flutter-2.0.3\android\src\main\java\io\flutter\plugins\googlemaps\Convert.java uses or overrides a deprecated API.
Note: Recompile with -Xlint:deprecation for details.
Note: C:\Users\susha\AppData\Local\Pub\Cache\hosted\pub.dartlang.org\google_maps_flutter-2.0.3\android\src\main\java\io\flutter\plugins\googlemaps\TileProviderController.java uses unchecked or unsafe operations.
Note: Recompile with -Xlint:unchecked for details.

FAILURE: Build failed with an exception.

* What went wrong:
A problem was found with the configuration of task ':google_maps_flutter:createFullJarDebug' (type 'ZipMergingTask').
> File 'D:\flutter_projects\crud_app\build\google_maps_flutter\intermediates\runtime_library_classes\debug\classes.jar' specified for property 'libraryInputFile' does not exist.

* Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output. Run with --scan to get full insights.

* Get more help at https://help.gradle.org

BUILD FAILED in 35s
Exception: Gradle task assembleDebug failed with exit code 1
Exited (sigterm)

Solution

Solution for this issue is : delete the .grade file in the android folder of project file.

Problem

I’m Calling An API to update my data and I got this error, the Error Says,

E/flutter (32582): type 'int' is not a subtype of type 'String' in type cast

Solution

Step 1: use "content-type": "application/json" in header

Step 2: encode your body like jsonEncode( {"param1": 10, "param2":20,"param3": "abc","param4": true})

Example Code Like

headers: {
      "content-type": "application/json",
    },
    body:jsonEncode( {
      "qualificationId": 10,
      "year":2001,
      "instituteName": "example",
      "isActive": true
    })

That’s it.

Thanks for Reading.

Keep Coding.