Errors after installing sass


I am totally new to this. Please can somebody help.
I have installed ionic as per the ionic setup and all was working until I installed sass.
This is the error I am getting

Michelles-iMac:ezyTag michellediamond$ ionic serve
Gulp startup tasks: 0=sass, 1=watch
Running live reload server: http://localhost:35729
Watching: 0=www//*, 1=!www/lib//*
Running dev server: http://localhost:8100
Ionic server commands, enter:
restart or r to restart the client app from the root
goto or g and a url to have the app navigate to the given url
consolelogs or c to enable/disable console log output
serverlogs or s to enable/disable server log output
quit or q to shutdown the server and exit

ionic $ /Users/michellediamond/ezyTag/node_modules/bower/node_modules/configstore/index.js:56
throw err;
Error: EACCES, permission denied '/Users/michellediamond/.config/configstore/bower-github.yml’
You don’t have access to this file.

at Error (native)
at Object.fs.openSync (evalmachine.<anonymous>:500:18)
at Object.fs.readFileSync (evalmachine.<anonymous>:352:15)
at Object.create.all.get (/Users/michellediamond/ezyTag/node_modules/bower/node_modules/configstore/index.js:34:29)
at Object.Configstore (/Users/michellediamond/ezyTag/node_modules/bower/node_modules/configstore/index.js:27:44)
at readCachedConfig (/Users/michellediamond/ezyTag/node_modules/bower/lib/config.js:19:23)
at defaultConfig (/Users/michellediamond/ezyTag/node_modules/bower/lib/config.js:11:12)
at Object.<anonymous> (/Users/michellediamond/ezyTag/node_modules/bower/lib/index.js:40:32)
at Module._compile (module.js:460:26)
at Object.Module._extensions..js (module.js:478:10)

Much appreciated.

Maybe you installed node and bower using sudo, you could re-install them using nvm.

Thank you I will try that. Do you mean npm? or is nvm correct?

I really meant nvm for installing node as a non root user so that you can install multiple versions of node and other tools