Cannot find type definition file for 'chai'.

[tarlepp]

OS?

Ubuntu 16.04

Versions.

angular-cli: 1.0.0-beta.19-3
node: 6.7.0
os: linux x64

Repro steps.

• clone https://github.com/tarlepp/angular2-firebase-material-demo
• run npm install
• create config.ts (as mentioned in readme.md)
• run npm start

The log given by the failure.

wunder@Code-VirtualBox:~/projects/angular2-firebase-material-demo$ npm start

> angular2-firebase-material-demo@0.0.0 start /home/wunder/projects/angular2-firebase-material-demo
> ng serve --host 0.0.0.0

** NG Live Development Server is running on http://0.0.0.0:4200. **                                   12923ms building modules                                                               6ms add04101ms2195ms asse117ms emitting
Hash: af987254a406091fbfc8
Version: webpack 2.1.0-beta.25
Time: 20388ms
           Asset     Size  Chunks             Chunk Names
  main.bundle.js  4.71 MB    0, 2  [emitted]  main
styles.bundle.js  28.5 kB    1, 2  [emitted]  styles
       inline.js  5.53 kB       2  [emitted]  inline
        main.map  5.05 MB    0, 2  [emitted]  main
      styles.map  36.8 kB    1, 2  [emitted]  styles
      inline.map  5.59 kB       2  [emitted]  inline
      index.html  1.42 kB          [emitted]  

ERROR in [default] /home/wunder/projects/angular2-firebase-material-demo/node_modules/rxjs/observable/PairsObservable.d.ts:1:0 
Cannot find type definition file for 'chai'.

ERROR in [default] /home/wunder/projects/angular2-firebase-material-demo/node_modules/rxjs/observable/dom/AjaxObservable.d.ts:1:0 
Cannot find type definition file for 'chai'.
Child html-webpack-plugin for "index.html":
         Asset    Size  Chunks       Chunk Names
    index.html  3.8 kB       0       
webpack: bundle is now VALID.`

[clydin]

Did you change the rxjs version? It should be beta12.

[tarlepp]

Actually I did update that to newest one, because ncu told me there was newer version available...

So how should users know which packages to update and which not? Although it seems to work just fine if I just remove "rxjs": "5.0.0-rc.2" from my package.json and rm -rf node_modules + npm install

[tmtk75]

@tarlepp It seems rxjs requires @types/chai somehow.
I also ran into the same error message and I could solve with this in my case. Hope this helps you as a workaround to suppress the error messages.

npm i --save-dev @types/chai

I think chai is a test framework, so hope rxjs should not include the dependency in the released module.

[wulfsberg]

It is ReactiveX/rxjs#2112 (Which in turn apparently is a TypeScript compiler issue), so it is on the radar.

Manually adding chai types as dev dependency as @tmtk75 says is an easy workaround for now.

[clydin]

Angular has a fixed peerDep version of 5.0.0-beta.12. I wouldn't update until angular does as well.

[jayphelps]

We believe we have fixed this in RxJS 5.0.0-rc3, which was just published. ReactiveX/rxjs#2120

Edit: we accidentally didn't include the fix in that release..so it's not fixed. Sorry folks! 😞

[cuongutd]

still getting error with RxJS 5.0.0-rc3

[jayphelps]

😢

[prafsoni]

just upgraded to rc3, still there.

[ezzkht]

same issue here with rc3

[MarkPieszak]

The above comment npm i --save-dev @types/chai should fix it. Is there an open issue for Rxjs somewhere about this?

[jmesa-sistel]

@MarkPieszak
Read 5 comments above yours

[MarkPieszak]

Missed that, thank you! Perfect. @jmesa-sistel

[windgaucho]

The solution of @tmtk75 worked for me on RxJS RC5

[tarlepp]

Yeah installing @types/chai fixes this, and the problem is still with latest RxJS