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

[edi_smooth]

After updating to RC.0 when trying to run ionic serve I have got hundreds of errors like this:

node_modules/ionic-native/dist/plugins/dbmeter.d.ts(50,22): error TS2304: Cannot find name ‘Promise’.

I did upgrade to RC.0 modifying your existing project.

[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; } } );

[edi_smooth]

No, I didn’t. Thanks for your reply:) My project doesn’t work anyway, but some problems gone.

[Daveshirman]

I’ve got the same problem, cannot find Promise, since updating to RC0.

I’ve tried npm install -g typescript but that has no effect.

What did you do specifically to solve this?

Please post the answer here as to help others:

Ionic 2: Cannot find name ‘Promise’ after updating to RC.0

Thanks

[gsoulie]

I had the same problem, but after updating my Visual Studio Code settings to work with TypeScript 2.0 all was good.

[jamminjimi]

Yes. Updating VS code worked for me!