Unhandled Exception: InvalidMessageException - No valid sessions. [InvalidMessageException - Bad Mac!][0]

[PremchandGat]

Getting error while decrypting the message
/flutter ( 3857): [ERROR:flutter/runtime/dart_vm_initializer.cc(41)] Unhandled Exception: InvalidMessageException - No valid sessions. [InvalidMessageException - Bad Mac!][0]
E/flutter ( 3857): #0 SessionCipher._decrypt
session_cipher.dart:186
E/flutter ( 3857): #1 SessionCipher.decryptWithCallback
session_cipher.dart:109
E/flutter ( 3857):
E/flutter ( 3857): #2 ChatBloc._decryptMessage
chat_bloc.dart:97
E/flutter ( 3857):
E/flutter ( 3857): #3 Bloc.on..handleEvent
bloc.dart:229
E/flutter ( 3857):
E/flutter ( 3857):

[simonasposka]

Hey @PremchandGat , did you managed to solve this?

Sometimes I get this error too, however I cannot reproduce it 🤔

[PremchandGat]

Hey @simonasposka, i haven't worked again on that so i haven't solved this issu. If you want the code to reproduce this error that might i can send you

[simonasposka]

I'd be very grateful if you shared the code that causes this error 🙇‍♂️

[PremchandGat]

https://github.com/PremchandGat/lib_signal_flutter
Here the code @simonasposka

[mpweya]

Hello,

I have the same problem. I implemented a small test program which works fine but implementing the library into my larger project I get the same error message. As I cannot share my bigger project (which would be unpractical too), I would like to know

1. what this error means,
2. how I can run into this exception and
3. what is needed for a session to be the same (aka what values do I need to double-check on sender and receiver)

to hopefully debug my program. The general implementation is correct so the devil has to be in the detail.

[anisalibegic]

Was anyone successful with figuring out why this happens?