error TS2300: Duplicate identifier 'IteratorResult'.

[GasserJC]

Followed the readme directions - caused this error. I found a few similar issues elsewhere, where updating TS, or creating a files section in the tsconfig.ts will solve the issue, however, these solutions did not work in my situation. Does anyone know what this would cause? TS Version: 4.0.3

This happens after npm run build

node_modules/@types/node/index.d.ts:167:11 - error TS2300: Duplicate identifier 'IteratorResult'.

167 interface IteratorResult { }
~~~~~~~~~~~~~~

node_modules/typescript/lib/lib.es2015.iterable.d.ts:41:6
41 type IteratorResult<T, TReturn = any> = IteratorYieldResult | IteratorReturnResult;
~~~~~~~~~~~~~~
'IteratorResult' was also declared here.

node_modules/typescript/lib/lib.es2015.iterable.d.ts:41:6 - error TS2300: Duplicate identifier 'IteratorResult'.

41 type IteratorResult<T, TReturn = any> = IteratorYieldResult | IteratorReturnResult;
~~~~~~~~~~~~~~

node_modules/@types/node/index.d.ts:167:11
167 interface IteratorResult { }
~~~~~~~~~~~~~~
'IteratorResult' was also declared here.

[mochadwi]

This is fixed by upgrading typescript & node to the latest version