message: Pin flex-layout to beta.17
diff: "@angular/compiler": "^6.0.0",
  "@angular/compiler-cli": "^6.0.0",
  "@angular/core": "^6.0.0",
  - "@angular/flex-layout": "^6.0.0-beta",
  + "@angular/flex-layout": "6.0.0-beta.17",
  "@angular/forms": "^6.0.0",
  "@angular/http": "^6.0.0",
  "@angular/material": "^6.0.1",
  