Rxjs: ERROR in node_modules/rxjs/internal/types.d.ts

[monukanyal2017]

Bug Report

Current Behavior
I am getting following errror after using npm start or ng build --prod

ERROR in node_modules/rxjs/internal/types.d.ts(81,44): error TS1005: ';' expected.
node_modules/rxjs/internal/types.d.ts(81,74): error TS1005: ';' expected.
node_modules/rxjs/internal/types.d.ts(81,77): error TS1109: Expression expected.

Expected behavior
npm start or ng build command should run without any error.

Environment

• Runtime: Node {8.9.0} NPM{6.4.0}
• RxJS version:6.4.0

[kwonoj]

What's typescript version / and is there reproducible repo?

[monukanyal2017]

"typescript": "~2.7.0"

[kwonoj]

Per this (https://github.com/ReactiveX/rxjs/pull/4405#pullrequestreview-196802187) change, it requires 2.8 version of typescript compiler.

[monukanyal2017]

@kwonoj should i change it 2.7.0 to 2.8.0? angular version is 6.0.0

[kwonoj]

@monukanyal2017 we are trying to figure out which part is actually affects this, I or @cartant will fill bit more detail here.

[cartant]

We've investigated the issue and the problem is that some versions of projects generated using Angular CLI have an RxJS dependency of ^6.0.0 and a TypeScript dependency of ~2.7.2.

RxJS version 6.4 uses a conditional type to facilitate some improvements to its types and conditional types were introduced in TypeScript 2.8. We are currently looking into the best way of addressing the problem.

[ErxrilOwl]

Same issue

[monukanyal2017]

@cartant , Please let me know , should i install lower version of Rxjs?

[cartant]

To workaround the issue, you can pin RxJS to 6.3 by changing the dependency version in your package.json for RxJS to "rxjs": "~6.3.3".

[sachin-dbox]

I am also facing the same issue . updated rxjs to 6.3.3, still getting the same issue.

[benlesh]

I've created a new issue to track this problem here https://github.com/ReactiveX/rxjs/issues/4512.

[benlesh]

@sachin-dbox, if you can create a minimum reproduction of that, please file a new issue and link in there. Happy to help if we can.

[NdumisoMthembu]

Updating type script worked for me npm install -g typescript@latest

[cartant]

Locking this. Refer to #4512