Error installing using npm on OSX mavericks

[ghost]

When I tried installing the newer version of grunt-casperjs (1.4.0) using npm, I get the below error:

Casperjs not installed. Installing. Receiving 0K...

/Users/peter/Sites/node_modules/grunt-casperjs/node_modules/adm-zip/zipFile.js:66 throw Utils.Errors.INVALID_FORMAT; ^ Invalid or unsupported zip format. No END header found ...

In my package file I have: "dependencies": { ... "grunt-casperjs": "~1.4.0", ... }

So nothing fancy. Any ideas?

[ruudud]

Same issue observed occasionally on Ubuntu 13.10.

[cheets]

On my ubuntu 12.04 I solved this by running first:

sudo npm -g install casperjs 

[romamatusevich]

I have the same issue on Windows 7 Ultimate.

node -v v0.10.26 npm -v 1.4.3

[knorrium]

This is still happening randomly on grunt-casperjs 1.4.0 on Linux boxes. Any ideas on how to fix it? Thanks!