Error: authentication.dart

[andoriyaprashant]

Describe the bug
There are many bugs in lib\services\authentication.dart file

Prerequisites

• I am running the latest version
• I checked the documentation and found no answer
• I checked to make sure that this issue has not already been filed
• I'm reporting the issue to the correct repository (for multi-repository projects)

To Reproduce
Steps to reproduce the behavior:

1. Go to Friday Repo
2. Click on lib\services\authentication.dart
3. See error

Expected behavior
Code without any errors successfully compiles and runs as expected.