node_modules/@angular/fire/angularfire2.d.ts(40,49): error TS2344: Type 'T[K]' does not satisfy the constraint '(...args: any) => any'. code example
Example: @angular/fire/angularfire2.d.ts:37:49 - error TS2344: Type 'T[K]' does not satisfy the constraint '(...args: any) => any
{
//...
compilerOptions: {
"skipLibCheck": true,
//...
}
}