https://github.com/Microsoft/TypeScript/issues/4948#issuecomment-279109510 (Sounds like issue with isomorphic-fetch also) The entry ``` "@types/whatwg-fetch": "0.0.28", ``` Needs to be removed from in fex. [ReactReduxSpa/package.json](https://github.com/aspnet/JavaScriptServices/blob/dev/templates/ReactReduxSpa/package.json#L14) But then [domain-task](https://github.com/aspnet/JavaScriptServices/blob/dev/src/Microsoft.AspNetCore.SpaServices/npm/domain-task/package.json) doesn't like it as its a dependency 😞 [Breaking-Changes#typescript-22](https://github.com/Microsoft/TypeScript/wiki/Breaking-Changes#typescript-22)
microsoft/TypeScript#4948 (comment) (Sounds like issue with isomorphic-fetch also)
The entry
Needs to be removed from in fex. ReactReduxSpa/package.json
But then domain-task doesn't like it as its a dependency 😞
Breaking-Changes#typescript-22