This problem might arise due to version mismatch. To solve your problem you need to do following changes in your package.json file.
Step 1 : Go to package.json
and modify "rxjs": "^6.0.0"
to "rxjs": "6.0.0"
Step 2 Run npm install
in your project.
There is no need to change the typescript version. (Mine: "typescript": "~2.7.2"
)
Edit: If you are using rxjs-compat
then you also need to do following in order to fixed the issue. change the rxjs-compat
version from "rxjs-compat": "^6.2.2"
to "rxjs-compat": "6.2.2"
Hope this will help!
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