Error: type 'char' not found

[obiwanzenobi]

I cannot compile app with fusionauth-dart-client. It throws a lot of errors in terminal output.
I tested version 1.36.0 from pub.dev and also directly from tag 1.36.8

fusionauth_dart_client:
    git:
      url: https://github.com/FusionAuth/fusionauth-dart-client
      ref: 1.36.8

I'm using flutter 3.0.5, dart 2.17
Here are a couple of them:

../../.pub-cache/git/fusionauth-dart-client-090ca757b8e8b8dcbf00669f1817511e0906caef/lib/src/FusionAuthDomain.dart:7396:3: Error: Type 'char' not found.
  char separator;
  ^^^^
../../.pub-cache/git/fusionauth-dart-client-090ca757b8e8b8dcbf00669f1817511e0906caef/lib/src/FusionAuthDomain.dart:35:13: Error: The parameter 'access_token' can't have a value of 'null' because of its type 'String', but the implicit default value is 'null'.
Try adding either an explicit non-'null' default value or the 'required' modifier.
      {this.access_token,
            ^^^^^^^^^^^^
../../.pub-cache/git/fusionauth-dart-client-090ca757b8e8b8dcbf00669f1817511e0906caef/lib/src/FusionAuthDomain.dart:36:12: Error: The parameter 'expires_in' can't have a value of 'null' because of its type 'num', but the implicit default value is 'null'.
Try adding either an explicit non-'null' default value or the 'required' modifier.
      this.expires_in,
           ^^^^^^^^^^
../../.pub-cache/git/fusionauth-dart-client-090ca757b8e8b8dcbf00669f1817511e0906caef/lib/src/FusionAuthDomain.dart:37:12: Error: The parameter 'id_token' can't have a value of 'null' because of its type 'String', but the implicit default value is 'null'.
Try adding either an explicit non-'null' default value or the 'required' modifier.
      this.id_token,
           ^^^^^^^^

[mooreds]

Hmmm. Did you end up solving this?

[obiwanzenobi]

Unfortunately no. I end up integrating FusionAuth API

[mooreds]

Thanks for the follow up.