Error while upgrading appium

Hi,

I am using mac and i tried to upgrade appium from 1.4.8 to 1.5.2
I used:
$ npm install -g appium-version-manager
$ avm 1.5.2

Now I get an error of:
npm WARN ENOENT ENOENT: no such file or directory, open ‘/usr/local/avm/versions/1.5.2/package.json’
npm WARN EPACKAGEJSON 1.5.2 No description
npm WARN EPACKAGEJSON 1.5.2 No repository field.
npm WARN EPACKAGEJSON 1.5.2 No README data
npm WARN EPACKAGEJSON 1.5.2 No license field.
module.js:339
throw err;
^

Error: Cannot find module ‘lodash._basetostring’
at Function.Module._resolveFilename (module.js:337:15)
at Function.Module._load (module.js:287:25)
at Module.require (module.js:366:17)
at require (module.js:385:17)
at Object. (/usr/local/lib/node_modules/appium/node_modules/npmlog/node_modules/gauge/node_modules/lodash.pad/index.js:9:20)
at Module._compile (module.js:425:26)
at Object.Module._extensions…js (module.js:432:10)
at Module.load (module.js:356:32)
at Function.Module._load (module.js:311:12)
at Module.require (module.js:366:17)
/usr/local/bin/avm: line 286: appium: command not found

Any idea?

thanks

Can you just try this:
npm install appium -g