Installed router and i'm getting a type error

[Wulgaren]

Hello, I installed tanstack router by following the process here

when i pasted the routes code i get a type error from createLazyFileRoute which says
Argument of type 'string' is not assignable to parameter of type 'never'.ts(2345)
here's how the declariation looks like

export declare function createLazyFileRoute<TFilePath extends keyof FileRoutesByPath, TRoute extends FileRoutesByPath[TFilePath]['preLoaderRoute']>(path: TFilePath): (opts: LazyRouteOptions) => LazyRoute<TRoute>;

is this normal?

[Wulgaren]

seems like i had to run the project before making the route files