Summary: Bugfix Add protect when save task If local cache resource are valid, we don't create a Task .So here are crash. Pull Request resolved: https://github.com/facebook/flipper/pull/466 Reviewed By: passy Differential Revision: D15851816 Pulled By: priteshrnandgaonkar fbshipit-source-id: 753b3c5c9a6ed4c703c934a89e45fa30df99068c