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I have upgraded my project from Angular 4 to Angular 7, and I am getting the following error:

ERROR in node_modules/@ng-bootstrap/ng-bootstrap/typeahead/typeahead.d.ts(3,10): error TS2305: Module '"D:/usman/dev_area/code/physician-portal/node_modules/rxjs/Observable"' has no exported member 'Observable'

node_modules/rxjs/Observable.d.ts(1,15): error TS2307: Cannot find module 'rxjs-compat/Observable

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4 Answers 4

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5

This sounds an issue with rxjs-compat. Try running:

npm install --save rxjs-compat
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1 Comment

That is a bandaid, you are much better off investing the time to update your code to be rxjs 6 compliant. You are going to have to do it for Angular 8 so better to do it now.
2

As the message said, your project cannot find the member Observable from rxjs-compat. You can resolve that by installing the last version of rxjs-compat with the following command from your project folder : 

npm install --save rxjs-compat
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0

Angular while running is trying to search for the member Observable inside your rxjs module which is a module in "node_modules" folder, something like "node_modules/rxjs/Observable". You just need to install the missing module with the command:

npm install --save rxjs-compat
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rxjs-compat is not the answer you are looking for, it is a band-aid. You want to update your code to be rxjs 6 compliant and upgrade from ng-bootstrap to ngx-bootstrap.

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