小编Pra*_*M96的帖子

Building wheels for collected packages: argon2-cffi
  Building wheel for argon2-cffi (PEP 517) ... error
  ERROR: Command errored out with exit status 1:
   command: 'c:\users\prasa\appdata\local\programs\python\python39\python.exe' 'c:\users\prasa\appdata\local\programs\python\python39\lib\site-packages\pip\_vendor\pep517\_in_process.py' build_wheel 'C:\Users\prasa\AppData\Local\Temp\tmpcczeigwt'
       cwd: C:\Users\prasa\AppData\Local\Temp\pip-install-iele2h25\argon2-cffi
  Complete output (17 lines):
  running bdist_wheel
  running build
  running build_py
  creating build
  creating build\lib.win-amd64-3.9
  creating build\lib.win-amd64-3.9\argon2
  copying src\argon2\exceptions.py -> build\lib.win-amd64-3.9\argon2
  copying src\argon2\low_level.py -> build\lib.win-amd64-3.9\argon2
  copying src\argon2\_ffi_build.py -> build\lib.win-amd64-3.9\argon2
  copying src\argon2\_legacy.py -> build\lib.win-amd64-3.9\argon2
  copying src\argon2\_password_hasher.py -> build\lib.win-amd64-3.9\argon2
  copying src\argon2\_utils.py -> build\lib.win-amd64-3.9\argon2
  copying src\argon2\__init__.py -> build\lib.win-amd64-3.9\argon2
  copying src\argon2\__main__.py -> build\lib.win-amd64-3.9\argon2
  running build_clib
  building …

I am new to angular. Here I using ngrx to manage a state in my angular app. But when I'm compiling I got the following error. It says that 'Types of parameters 'action' and 'action' are incompatible'. I want to know the reason for this and how to solve this?

 
    Error: src/app/shopping-list/store/shoppingList.actions.ts:9:5 - error TS2564: Property 'payload' has no initializer and is not definitely assigned in the constructor.
    
    9     payload: Ingredient;
          ~~~~~~~
    src/app/app.module.ts:25:27 - error TS2322: Type '(state: { ingredients: …