How to Fix: failed to upload the package. flutter - flutter

Question

I am trying to publish my first package for the first time and when I use flutter packages pub publish, it give me in the end.
Uploading...
Failed to upload the package.
pub finished with exit code 1
The log for flutter packages pub publish -v is:
ERR : Failed to upload the package.
FINE: Exception type: ApplicationException
FINE: package:pub/src/utils.dart 512:5 fail
| package:pub/src/command/lish.dart 109:9 LishCommand._publish
| ===== asynchronous gap ===========================
| dart:async Future.catchError
| package:pub/src/utils.dart 113:52 captureErrors.wrappedCallback
| package:stack_trace Chain.capture
| package:pub/src/utils.dart 126:11 captureErrors
| package:pub/src/command.dart 164:13 PubCommand.run
| package:args/command_runner.dart 196:27 CommandRunner.runCommand
| package:pub/src/command_runner.dart 150:26 PubCommandRunner.runCommand
| package:pub/src/command_runner.dart 138:18 PubCommandRunner.run
| C:\b\s\w\ir\cache\builder\src\third_party\dart\third_party\pkg\pub\bin\pub.dart 9:48 main
[+15501 ms] "flutter pub" took 15,607ms.
[ +6 ms] pub finished with exit code 1
[ +2 ms]
#0 throwToolExit (package:flutter_tools/src/base/common.dart:10:3)
#1 _DefaultPub.interactively (package:flutter_tools/src/dart/pub.dart:366:7)
<asynchronous suspension>
#2 PackagesPassthroughCommand.runCommand (package:flutter_tools/src/commands/packages.dart:267:5)
<asynchronous suspension>
#3 FlutterCommand.run.<anonymous closure> (package:flutter_tools/src/runner/flutter_command.dart:1043:27)
<asynchronous suspension>
#4 AppContext.run.<anonymous closure> (package:flutter_tools/src/base/context.dart:150:19)
<asynchronous suspension>
#5 CommandRunner.runCommand (package:args/command_runner.dart:196:13)
<asynchronous suspension>
#6 FlutterCommandRunner.runCommand.<anonymous closure> (package:flutter_tools/src/runner/flutter_command_runner.dart:284:9)
<asynchronous suspension>
#7 AppContext.run.<anonymous closure> (package:flutter_tools/src/base/context.dart:150:19)
<asynchronous suspension>
#8 FlutterCommandRunner.runCommand (package:flutter_tools/src/runner/flutter_command_runner.dart:232:5)
<asynchronous suspension>
#9 run.<anonymous closure>.<anonymous closure> (package:flutter_tools/runner.dart:62:9)
<asynchronous suspension>
#10 AppContext.run.<anonymous closure> (package:flutter_tools/src/base/context.dart:150:19)
<asynchronous suspension>
#11 main (package:flutter_tools/executable.dart:91:3)
<asynchronous suspension>
[ +6 ms] ensureAnalyticsSent: 4ms
[ +3 ms] Running shutdown hooks
[ ] Shutdown hooks complete
[ ] exiting with code 1
I tried to delete credentials.json file and the auth process gave me success but it still the same problem.

Answer 1

I found it.
delete .pub-cache folder inside src/flutter and invalid cach
invalid cache and restart your IDE
in terminal flutter packages pub publish
done.