gruntjs grunt-init grunfile throws error Fatal error: Arguments to path.join must be strings

Question

I am trying to set up a new project with gruntjs 0.4. I've uninstalled 0.3 and installed the grunt-cli and imported grunt-init gruntfile. when I run "grunt-init gruntfile" it runs the same as it did in 0.3 asking the normal questions

Please answer the following: [?] Is the DOM involved in ANY way? (Y/n) y [?] Will files be concatenated or minified? (Y/n) y [?] Will you have a package.json file? (Y/n) y [?] Do you need to make any changes to the above before continuing? (y/N) n

however after answering all the questions I get the error

Fatal error: Arguments to path.join must be strings

Has anyone else dealt with something similar or can you point me in the right direction to debug?

Answer 1

It was a bug caused by a change in Node 0.10.0, and was fixed earlier today. Will be released soon.

Answer 2

I just updated both grunt and grunt-cli

npm install grunt-cli
.
.
.
npm install grunt

and that fixed it for me

Answer 3

if you're using 'bower'(A package manager for the web), I had the same issue, It turned that its a bower library error when try to install angular. I run the bower build separately like below

bower install angular

Then I selected the correct version, and it works for me.