(Guard) metatype is not a constructor

[hallow tiger]

i seem to encounter some issue with guards i never had seen before where i get metatype is not a constructor

@Injectable()
export class SessionGuard implements CanActivate {
  private readonly logger = new Logger(SessionGuard.name)
  async canActivate(context: ExecutionContext) {
    const req = context.switchToHttp().getRequest()
    this.logger.debug(req.user)
    this.logger.debug(req.isAuthenticated())
    return true
  }
}

PLZ somebody tell me why this could happen or what this means 😭

[hallow tiger]

Guard; metatype is not a constructor

(Guard) metatype is not a constructor

[tough needle]

Usually when there's an error like that it's because the guard is coming in as undefined

[hallow tiger]

strange the import is correct
and all the guard does is returning a hard true