I am developing an Android app in Ionic Angular with Firebase. yesterday i had this problem in VSC and as much as I search I can't find the solution.

This is the problem

this is the Ts from my page Register users

The problem is in the Line 41 "const id = _res.user.uid; "

models.ts

Help me please!.

I try to change const id = res.user.uid; to const id = res.user?.uid; but doesnt works

CodePudding user response：

try to initialize your variable and make sure it's not null. if it was not enough and you are sure that variable (like user) won't be null, you can try

const id = res.user!.uid;

or you can suppress the error by adding this line in the right behind the part of your code with the error:

// @ts-ignore: Object is possibly 'null'.

or you can generally disable null checking in your project in tsconfig.json file (which is not recommended) like this:

"compilerOptions": {
    ...
    "strictNullChecks": false
  },