Typescript Error, Cannot find name 'gapi', transpile failed

Question

I trying to implement google auth in my ionic2 app. I need it works in browser. So, I installed:

npm install --save @types/gapi
npm install --save @types/gap         


        

Answer 1

The current declarations for gapi and for gapi.auth2 are global declarations.

They might not be automatically with @types because looking into node_modules either requires an explicit import or adding your libraries to the types field in your tsconfig.json.

So try fixing up the following types field to your compilerOptions:

"compilerOptions": {
     "types": ["gapi", "gapi.auth2"]
}