Travis build is failing, The command "yarn" exited with 1.
info fsevents@1.1.3: The platform "linux" is incompatible with this module.
info "fsevents@1.1.3" is an optional dependency and failed compatibility check. Excluding it from installation.
error upath@1.0.4: The engine "node" is incompatible with this module. Expected version ">=4 <=9".
error Found incompatible module
info Visit https://yarnpkg.com/en/docs/cli/install for documentation about this command.
Travis build is failing,
The command "yarn" exited with 1.