Non-nullable property 'QQSocialID' must contain a non-null value when exiting constructor. Consider adding the 'required' modifier or declaring the property as nullable.

Non-nullable property 'RegTime' must contain a non-null value when exiting constructor. Consider adding the 'required' modifier or declaring the property as nullable.

Non-nullable property 'Email' must contain a non-null value when exiting constructor. Consider adding the 'required' modifier or declaring the property as nullable.

Non-nullable property 'Avatar' must contain a non-null value when exiting constructor. Consider adding the 'required' modifier or declaring the property as nullable.

Non-nullable property 'Username' must contain a non-null value when exiting constructor. Consider adding the 'required' modifier or declaring the property as nullable.

Non-nullable property 'Token' must contain a non-null value when exiting constructor. Consider adding the 'required' modifier or declaring the property as nullable.

Non-nullable property 'FrpToken' must contain a non-null value when exiting constructor. Consider adding the 'required' modifier or declaring the property as nullable.

Non-nullable field 'UserInfo' must contain a non-null value when exiting constructor. Consider adding the 'required' modifier or declaring the field as nullable.

The variable 'InterruptReason' is assigned but its value is never used

The variable 'isProgramHasNewerVersion' is assigned but its value is never used

Non-nullable field 'UserInfo' must contain a non-null value when exiting constructor. Consider adding the 'required' modifier or declaring the field as nullable.

Converting null literal or possible null value to non-nullable type.

Dereference of a possibly null reference.

Unreachable code detected

Because this call is not awaited, execution of the current method continues before the call is completed. Consider applying the 'await' operator to the result of the call.

This async method lacks 'await' operators and will run synchronously. Consider using the 'await' operator to await non-blocking API calls, or 'await Task.Run(...)' to do CPU-bound work on a background thread.

Because this call is not awaited, execution of the current method continues before the call is completed. Consider applying the 'await' operator to the result of the call.

Dereference of a possibly null reference.

Possible null reference argument for parameter 'RefreshToken' in 'Task<bool> MainWindow.Login(string RefreshToken)'.

Dereference of a possibly null reference.

Because this call is not awaited, execution of the current method continues before the call is completed. Consider applying the 'await' operator to the result of the call.

Dereference of a possibly null reference.

Possible null reference argument for parameter 'RefreshToken' in 'Task<bool> MainWindow.Login(string RefreshToken)'.

The variable 'InterruptReason' is assigned but its value is never used

The variable 'isProgramHasNewerVersion' is assigned but its value is never used

Dereference of a possibly null reference.

The variable 'ex' is declared but never used

Dereference of a possibly null reference.

Dereference of a possibly null reference.

The variable 'e' is declared but never used

The variable 'InterruptReason' is assigned but its value is never used

The variable 'isProgramHasNewerVersion' is assigned but its value is never used

Because this call is not awaited, execution of the current method continues before the call is completed. Consider applying the 'await' operator to the result of the call.

Dereference of a possibly null reference.

Possible null reference argument for parameter 'RefreshToken' in 'Task<bool> MainWindow.Login(string RefreshToken)'.

Because this call is not awaited, execution of the current method continues before the call is completed. Consider applying the 'await' operator to the result of the call.

Dereference of a possibly null reference.

Dereference of a possibly null reference.

Possible null reference argument for parameter 'value' in 'JToken.explicit operator bool(JToken value)'.