Error: Cannot find module 'commander'

[eng618]

When changing into a directory with a .node-version file I get the following error.

11:26:36 ▶ cd kibana
module.js:549
    throw err;
    ^

Error: Cannot find module 'commander'
    at Function.Module._resolveFilename (module.js:547:15)
    at Function.Module._load (module.js:474:25)
    at Module.require (module.js:596:17)
    at require (internal/module.js:11:18)
    at Object.<anonymous> (/Users/engarcia/.avn/bin/_avn:5:15)
    at Module._compile (module.js:652:30)
    at Object.Module._extensions..js (module.js:663:10)
    at Module.load (module.js:565:32)
    at tryModuleLoad (module.js:505:12)
    at Function.Module._load (module.js:497:3)

I've installed avn via yarn which worked fine previously. I've tried blowing out avn with rm -r ~/.avn and reinstalling as well with yarn global add avn avn-nvm to no avail.

Details

• avn avn --version - 0.2.3
• node node --version - 8.11.1
• nvm nvm --version - 0.33.8
• n n --version - na
• zsh zsh --version - na
• bash bash --version - 4.4.19(1)-release

The output of __avn_debug in the directory with a .node-version file is:

11:24:48 ▶ __avn_debug
module.js:549
    throw err;
    ^

Error: Cannot find module 'commander'
    at Function.Module._resolveFilename (module.js:547:15)
    at Function.Module._load (module.js:474:25)
    at Module.require (module.js:596:17)
    at require (internal/module.js:11:18)
    at Object.<anonymous> (/Users/engarcia/.avn/bin/_avn:5:15)
    at Module._compile (module.js:652:30)
    at Object.Module._extensions..js (module.js:663:10)
    at Module.load (module.js:565:32)
    at tryModuleLoad (module.js:505:12)
    at Function.Module._load (module.js:497:3)

avn is loaded in my ~/.bashrc file with:

[[ -s "$HOME/.avn/bin/avn.sh" ]] && source "$HOME/.avn/bin/avn.sh" # load avn

nvm specific

• As an nvm user I am confirming that I did not install with Homebrew

[wbyoung]

Does it work when installed via npm?

[eng618]

just ran...

yarn global remove avn avn-nvm
npm i -g avn avn-nvm
avn setup

then changed into a dir with a .node-version file and got the same error:

module.js:549
    throw err;
    ^

Error: Cannot find module 'commander'
    at Function.Module._resolveFilename (module.js:547:15)
    at Function.Module._load (module.js:474:25)
    at Module.require (module.js:596:17)
    at require (internal/module.js:11:18)
    at Object.<anonymous> (/Users/engarcia/.avn/bin/_avn:5:15)
    at Module._compile (module.js:652:30)
    at Object.Module._extensions..js (module.js:663:10)
    at Module.load (module.js:565:32)
    at tryModuleLoad (module.js:505:12)
    at Function.Module._load (module.js:497:3)

and debug:

19:51:48 ▶ __avn_debug
module.js:549
    throw err;
    ^

Error: Cannot find module 'commander'
    at Function.Module._resolveFilename (module.js:547:15)
    at Function.Module._load (module.js:474:25)
    at Module.require (module.js:596:17)
    at require (internal/module.js:11:18)
    at Object.<anonymous> (/Users/engarcia/.avn/bin/_avn:5:15)
    at Module._compile (module.js:652:30)
    at Object.Module._extensions..js (module.js:663:10)
    at Module.load (module.js:565:32)
    at tryModuleLoad (module.js:505:12)
    at Function.Module._load (module.js:497:3)

and that was with node --version: v8.11.1

[clintandrewhall]

I was able to resolve this by running npm install in ~/.avn.

[rfgamaral]

I was able to resolve this by running npm install in ~/.avn.

I had a similar issue and while doing this solved the initial issue it presented a new one. I believe that using Yarn (which I used) didn't properly install avn-n and avn-nvm because they don't include any binaries.

I've since removed everything and globally installed avn, avn-n and avn-nvm with npm instead and I had no issues so far.

[JohnRDOrazio]

As @rfgamaral suggested, after having attempted to install using yarn, and running into all kinds of issues, I removed using yarn global remove avn avn-nvm avn-n. After exiting and restarting the terminal I was able to run npm install -g avn avn-nvm avn-n followed by avn setup without any trouble. Now when switching into a directory with a .node-version file I am no longer having any trouble.