Namespace 'firebase.auth' has not exported member 'IdTokenResult'

When working with firestore I get this error, I'm trying to login, however, the following error comes out

ERROR in node_modules/angularfire2/auth/auth.d.ts(12,45): error TS2694: Namespace 'firebase.auth' has no exported member 'IdTokenResult'.
node_modules/angularfire2/firebase.app.module.d.ts(2,42): error TS2305: Module '"D:/proyecto/inventory/node_modules/firebase/app/index"' has no exported
member 'functions'.

I have already worked with version 4.6.0, 4.8.0, 5.3.0, and even with the latest version and the error keeps appearing