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androidflutterreleasesignformatexception

Flutter App signing Problem -- FormatException

I tried flutter doctor, clean, upgrade etc. I read everything i found but i couldn't fix this.

What I want : Sign my apk

I made a keystore file : key.jks and i did everything about this page; https://flutter.io/docs/deployment/android (just signing )

Problem is when i tried to build apk with

flutter build apk --release

I got an error

FAILURE: Build failed with an exception.

and the logfile error is

FormatException: FormatException: Bad UTF-8 encoding 0x4c (at offset 511)

So if dont change signingConfig signingConfigs.debug to this signingConfig signingConfigs.release there is no error.

Thanks for help.

Solution

  • I found the solution. In the keystore.proporties file storeFile like this :

    storeFile=D:\key.jks

    I did it like this because Windows use \. But I changed it like this :

    storeFile=D:/key.jks

    And it works like a charm.