I got an error of
node_modules/rxjs/internal/types.d.ts(81,44): error TS1005: \';\' expected.
after the installation of Angular
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"
This works for me