exp installation error: Unexpected end of JSON input

[gustavovaliati]

Hello!

I have been unable to install exp on my machine due to an error while running the npm install command.

Error:

$ sudo npm install -g exp
npm ERR! Unexpected end of JSON input while parsing near '...","istanbul":"0.3.22"'

npm ERR! A complete log of this run can be found in:
npm ERR!     /home/$USER/.npm/_logs/2018-07-15T14_40_56_204Z-debug.log

Machine:

• Ubuntu 16.04
• Nodejs: v8.11.3
• NPM: 5.6.0

Ps:

• Creating a project with 'create-react-native-app' does fine. I can work with expo.io from it.
• I have tried to rollback one exp version by sudo npm install -g exp@55.0.4 but got the same error.
• Before opening an issue here I have looked up for a solution in: forums.expo.io/ ; github.com/expo/expo/issues/

Thank you very much.

[gustavovaliati]

Solved with:
npm cache clean --force
and
npm audit fix --force