Installing Prior to V6

[jdubz666]

Hi,

I'm trying to install versions prior to V6 (I'd like to self-host). I'm getting errors on "npm install".

Do you know of any reasons why I'm having issues installing previous versions?

Thank you!

Error: Failed to replace env in config: ${FONT_AWESOME}
    at /usr/local/lib/node_modules/npm/lib/config/core.js:415:13
    at String.replace (<anonymous>)
    at envReplace (/usr/local/lib/node_modules/npm/lib/config/core.js:411:12)
    at parseField (/usr/local/lib/node_modules/npm/lib/config/core.js:389:7)
    at /usr/local/lib/node_modules/npm/lib/config/core.js:330:24
    at Array.forEach (<anonymous>)
    at Conf.add (/usr/local/lib/node_modules/npm/lib/config/core.js:328:23)
    at ConfigChain.addString (/usr/local/lib/node_modules/npm/node_modules/config-chain/index.js:244:8)
    at Conf.<anonymous> (/usr/local/lib/node_modules/npm/lib/config/core.js:316:10)
    at /usr/local/lib/node_modules/npm/node_modules/graceful-fs/graceful-fs.js:115:16
/usr/local/lib/node_modules/npm/lib/npm.js:59
      throw new Error('npm.load() required')
      ^

Error: npm.load() required
    at Object.get (/usr/local/lib/node_modules/npm/lib/npm.js:59:13)
    at process.errorHandler (/usr/local/lib/node_modules/npm/lib/utils/error-handler.js:205:32)
    at process.emit (events.js:310:20)
    at process._fatalException (internal/process/execution.js:164:25)