Firebase self sign-in issue-CodePudding

I am building an android based mobile application using flutter. When I want to add firebase to my app, I am facing an issue on Debug signing certificate SHA-1. I need to enter this command keytool -list -v \-alias androiddebugkey -keystore %USERPROFILE%\.android\debug.keystore. When I enter this command in my vscode terminal as I am building using the IDE, I get this error message.

Error message: -alias : The term '-alias' is not recognized as the 
name of a cmdlet, function, script file, or operable program. Check 
the spelling of the name, or if a path was 
included, verify that the path is correct, and try again.
At line:2 char:1
  -alias androiddebugkey -keystore %USERPROFILE%\.android\debug.keystor ...
  ~~~~~~
  CategoryInfo          : ObjectNotFound: (-alias:String) [], CommandNotFoundException
  FullyQualifiedErrorId : CommandNotFoundException

PS D:\puvan\Desktop\Food Donation App(Food2Gather)\food2gather> --help
At line:1 char:3
  --help
    ~
Missing expression after unary operator '--'.
At line:1 char:3
  --help
    ~~~~
Unexpected token 'help' in expression or statement.
      CategoryInfo          : ParserError: (:) [], 
ParentContainsErrorRecordException
      FullyQualifiedErrorId : MissingExpressionAfterOperator

I am not sure why this error message occurs and I am quite new to flutter and firebase. Still in the learning process. Can you help to tell which part I am doing wrong and how to solve it?

CodePudding user response：

I'm not a Flutter programmer, but I believe that this was already asked and answered here.

If it is, please remember to search in stack overflow the non-case-specific part of the error, to improve your chances of finding help, without needing to ask a question and wait for an answer