Error TS2 339: Property 'timeout' does not exist on type 'Observable<Response>'

Ionic Framework ionic-v3
1

Good day !

Since I updated my project to 4.0.0-beta.12 I have been getting the following error.

ERROR in src/app/pages/deactivate-device/deactivate-device.ts(171,53): error TS2
339: Property ‘timeout’ does not exist on type ‘Observable <Response’.

I add to page.

import {timeout} from ‘rxjs/operators’;

I use.

this.http.post(this.actions, data).timeout(40000).subscribe(serverData => {

}, err => { }

ionic info:

Ionic:

ionic (Ionic CLI) : 4.2.1 (C:\Users\anton\AppData\Roaming\npm\nod
e_modules\ionic)
Ionic Framework : @ionic/angular 4.0.0-beta.12
@angular-devkit/build-angular : 0.7.5
@angular-devkit/schematics : 0.7.5
@angular/cli : 6.1.5
@ionic/angular-toolkit : not installed

Cordova:

cordova (Cordova CLI) : 7.1.0
Cordova Platforms : not available
Cordova Plugins : not available

System:

(C:\Users\AppData\Local\Android\sdk)
NodeJS : v8.12.0 (C:\Program Files\nodejs\node.exe)
npm : 6.4.1
OS : Windows 7

2

I don’t think it’s related to the upgrade to Ionic but rather to a not correct use of rxjs timeout as of rxjs 6

Here an example of timeout pipe:

import {timeout} from 'rxjs/operators';

this.anObservable()
   .pipe(
      timeout(4000)
   ).subscribe((result: any) => {
      console.log('Cool');
   }, (err: any) => {
      console.log('Not cool');
  });
3

reedrichards, it helps … thank you very much… but project dose not build … I see strange errors … what I did wrong ?

ERROR in …/node_modules/@angular/core/src/facade/async.js
Module not found: Error: Can’t resolve ‘rxjs/Observable’ in ‘D:\tmp\ionic2\node_
modules@angular\core\src\facade’
ERROR in …/node_modules/@angular/forms/src/facade/async.js
Module not found: Error: Can’t resolve ‘rxjs/Observable’ in ‘D:\tmp\ionic2\node_
modules@angular\forms\src\facade’
ERROR in …/node_modules/@angular/http/src/backends/jsonp_backend.js
Module not found: Error: Can’t resolve ‘rxjs/Observable’ in ‘D:\tmp\ionic2\node_
modules@angular\http\src\backends’
ERROR in …/node_modules/@angular/http/src/backends/xhr_backend.js
Module not found: Error: Can’t resolve ‘rxjs/Observable’ in ‘D:\tmp\ionic2\node_
modules@angular\http\src\backends’
ERROR in …/node_modules/@angular/core/src/facade/async.js
Module not found: Error: Can’t resolve ‘rxjs/Subject’ in ‘D:\tmp\ionic2\node_mod
ules@angular\core\src\facade’
ERROR in …/node_modules/@angular/forms/src/facade/async.js
Module not found: Error: Can’t resolve ‘rxjs/Subject’ in ‘D:\tmp\ionic2\node_mod
ules@angular\forms\src\facade’
ERROR in …/node_modules/@angular/forms/src/model.js
Module not found: Error: Can’t resolve ‘rxjs/observable/fromPromise’ in ‘D:\tmp
ionic2\node_modules@angular\forms\src’
ERROR in …/node_modules/@angular/forms/src/validators.js
Module not found: Error: Can’t resolve ‘rxjs/operator/toPromise’ in ‘D:\tmp\ioni
c2\node_modules@angular\forms\src’
ERROR in …/node_modules/@angular/core/src/util/lang.js
Module not found: Error: Can’t resolve ‘rxjs/symbol/observable’ in ‘D:\tmp\ionic
2\node_modules@angular\core\src\util’

4

which rxjs version are you using aka which rxjs version is defined in your package.json?

5

I am using …

“rxjs”: “^6.3.3”,
“rxjs-compat”: “^6.3.3”,

6

You may want to either downgrade to rxjs version 5 (perhaps 5.5.12), or update your code for version 6. I had a similar issue when I upgraded to version 6, 'cos I didn’t realize that there was a lot of changes in 6, so I had to downgrade to 5.5.12.

This link might help https://www.academind.com/learn/javascript/rxjs-6-what-changed/

Good luck.

7

and @angular/...?
maybe something went bad during the installation? have you try to remove node_modules and reinstall all the libs?

8

obinnae,thanks a lot.

reedrichards, I reinstalled node_modules… it dose not help.

“@angular/cli”: “~6.1.1”,
“@angular/compiler”: “~6.1.1”,
“@angular/compiler-cli”: “~6.1.1”,
“@angular/language-service”: “~6.1.1”,
“@angular-devkit/architect”: “~0.7.2”,
“@angular-devkit/build-angular”: “~0.7.2”,
“@angular-devkit/core”: “~0.7.2”,
“@angular-devkit/schematics”: “~0.7.2”,

9

that’s super weird, you are using Ionic v4 right?

did you do a clean/force install of the dependencies?

rm -r node_modules
rm package-lock.json
npm install
10

reedrichards, it helps. Thank you very much !

11

it’s solved now doing so?