typescript: error TS2693: 'Promise' only refers to a type, but is being used as a value here

Question

I am trying to use Typescript for my AWS Lambda and i am getting the following errors where ever I use promises.

error TS2693: \'Promise\' only refers to a type,          


        

Answer 1

npm i --save-dev @types/es6-promise

after up command, you'd better check tsconfig.json make sure the "target" must great than "es6". maybe tsc not support es5 yet.