ERROR in node_modules/rxjs/internal/types.d.ts(90,44): error TS1005: ';' expected. node_modules/rxjs/internal/types.d.ts(90,74): error TS1005: ';' expected. node_modules/rxjs/internal/types.d.ts(90,77): error TS1109: Expression expected. node_modules/rxjs/internal/types.d.ts(91,52): error TS1005: ';' expected. node_modules/rxjs/internal/types.d.ts(91,88): error TS1005: ';' expected. node_modules/rxjs/internal/types.d.ts(91,92): error TS1109: Expression expected.
foi soulcionado na seguinte forma
no package.json mude
"rxjs": "^6.0.0", para "rxjs": "6.0.0",
apos mudar
npm i
e noavmente ng serve