Cannot find name 'Promise' after updating to RC.0

[reedrichards]

Did you updated typescript to version 2?

@grabtasker solved it like this

RC.0 doesn't recognize Promise

Thanks reedrichards, I resolved it by installing again typescript to version > 2 (2.0.3), it doesn’t notify more. But other headaches in migration to RC.0 happens (nothing works)

RC0 - error TS2339: Property 'map' does not exist on type 'Promise<{}>'

my code below, it’s giving error in RC0, previously it’s working fine… this.dataService.getCategories().map(res => res.json()) .subscribe( results => { if(results.success) { this.mycategories = results.categories; } } );