watchman : unknown option --no-pretty error while npm start

Hi I am getting ‘unknown option --no-pretty’ error while trying to start development server of react-native android project.

I executed

npm start

Then i got this:

React packager ready.

ERROR: Unknown option --no-pretty

Watchman:  watchman--no-pretty get-sockname returned with exit code 1 ERROR: Unknown option --no-pretty

ERROR  watchman--no-pretty get-sockname returned with exit code 1 ERROR: Unknown option --no-pretty

Error: watchman--no-pretty get-sockname returned with exit code 1 ERROR: Unknown option --no-pretty

    at ChildProcess.<anonymous> (/home/sreejith/projects/sample/node_modules/react-native/node_modules/sane/node_modules/fb-watchman/index.js:194:18)
    at emitTwo (events.js:87:13)
    at ChildProcess.emit (events.js:172:7)
    at maybeClose (internal/child_process.js:817:16)
    at Socket.<anonymous> (internal/child_process.js:319:11)
    at emitOne (events.js:77:13)
    at Socket.emit (events.js:169:7)
    at Pipe._onclose (net.js:469:12)

Please help

[andruschka]

ok i fixed it this way: npm r -g watchman brew update && brew upgrade brew install watchman

[3210jr]

I have just solved an issue similar to this one by running

$ sudo chown -R $(whoami):admin /usr/local

I must have messed with the permissions at one point or the other. Hope it helps!