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 still facing the problem, go to package.json
remove rxjs and add rxjs-compat also, "rxjs-compat": "^6.4.0" to "rxjs-compat": "6.4.0",
change the typscript version to 2.8
This will work for you!