message: Use same rxjs version that AngularCLI is using (6.4.0)
diff: "ngx-cookie": "^4.1.2",
  "ngx-spinner": "~7.0.0",
  "node-sass": "^4.12.0",
  - "rxjs": "6.5.2",
  + "rxjs": "6.4.0",
  "snarkdown": "^1.2.2",
  "socket.io-client": "^2.2.0",
  "typescript": "~3.4.5",
  