Angular-8 Cannot find module [Module Error]

Question

I'm using angular 8 and when I'm running the code these errors are appear. how to solve this ?

why these error are appear? Can anyone explain this?

** ERROR in Debug Failure. False expression.

ERROR in node_modules/rxjs/Subject.d.ts:1:15 - error TS2307: Cannot find module 'rxjs-compat/Subject' or its corresponding type declarations.

1 export * from 'rxjs-compat/Subject';
                ~~~~~~~~~~~~~~~~~~~~~
node_modules/@angular/material/core/typings/common-behaviors/error-state.d.ts:11:10 - error TS2305: Module '"../../../../../rxjs/Subject"' has no exported member 'Subject'.

11 import { Subject } from 'rxjs/Subject';
            ~~~~~~~
node_modules/rxjs/Observable.d.ts:1:15 - error TS2307: Cannot find module 'rxjs-compat/Observable' or its corresponding type declarations.

1 export * from 'rxjs-compat/Observable';
                ~~~~~~~~~~~~~~~~~~~~~~~~
node_modules/@angular/material/core/typings/common-behaviors/initialized.d.ts:9:10 - error TS2305: Module '"../../../../../rxjs/Observable"' has no exported member 'Observable'.

9 import { Observable } from 'rxjs/Observable';
           ~~~~~~~~~~
node_modules/@angular/material/core/typings/datetime/date-adapter.d.ts:9:10 - error TS2305: Module '"../../../../../rxjs/Observable"' has no exported member 'Observable'.

9 import { Observable } from 'rxjs/Observable';
           ~~~~~~~~~~
node_modules/@angular/material/core/typings/datetime/date-adapter.d.ts:10:10 - error TS2305: Module '"../../../../../rxjs/Subject"' has no exported member 'Subject'.

10 import { Subject } from 'rxjs/Subject';
            ~~~~~~~
node_modules/@angular/material/core/typings/option/option.d.ts:1:10 - error TS2305: Module '"../../../../../rxjs/Subject"' has no exported member 'Subject'.

1 import { Subject } from 'rxjs/Subject';
           ~~~~~~~
node_modules/@angular/material/form-field/typings/form-field-control.d.ts:8:10 - error TS2305: Module '"../../../../rxjs/Observable"' has no exported member 'Observable'.

8 import { Observable } from 'rxjs/Observable';
           ~~~~~~~~~~
node_modules/@angular/material/input/typings/input.d.ts:6:10 - error TS2305: Module '"../../../../rxjs/Subject"' has no exported member 'Subject'.

6 import { Subject } from 'rxjs/Subject';
           ~~~~~~~
node_modules/@angular/material/select/typings/select.d.ts:16:10 - error TS2305: Module '"../../../../rxjs/Observable"' has no exported member 'Observable'.   

16 import { Observable } from 'rxjs/Observable';
            ~~~~~~~~~~

Does this answer your question? Cannot find module 'rxjs-compat/Observable' — Harun Yilmaz
– Harun Yilmaz, Commented Oct 5, 2020 at 8:52
yes I tried but not working . is this issue related to version?? — RANA 04
– RANA 04, Commented Oct 5, 2020 at 11:05
rxjs-compat is used as a workaround for migration from v5 to newer. I think you should consider refactoring your code to use rxjs instead of rxjs-compat. This article might help — Harun Yilmaz
– Harun Yilmaz, Commented Oct 5, 2020 at 11:52

Gem · Accepted Answer · 2020-12-11 07:24:24Z

1

It is due to mismatching of the version you downloaded and the angular version. You have to choose whether it is suitable or not to the angular version you use..

answered Dec 11, 2020 at 7:24

Gem

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IRSHAD · Accepted Answer · 2020-10-05 08:48:37Z

0

Try this

npm install rxjs-compat --save

answered Oct 5, 2020 at 8:48

IRSHAD

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3 Comments

IRSHAD Over a year ago

Try - import { Observable } from 'rxjs'

RANA 04 Over a year ago

yes I tried but still same error .. is this error related to version ?

Nico Haase Over a year ago

Please add some explanation to your answer such that others can learn from it

Andrew Knackstedt · Accepted Answer · 2022-01-19 19:46:23Z

0

You need to import classes from rxjs like so:

import { Observable, Subject } from "rxjs";

Why? rxjs changed their export layout to use a single export file instead of using paths to specify dependency locations.

answered Jan 19, 2022 at 19:46

Andrew Knackstedt

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