ERROR: While executing gem … (Zlib::GzipFile::Error) not in gzip format

Question

I am developing a Sencha touch 2 application. I have been following the \"Styling the user interface of a Sencha Touch application\" tutorial on theming of secha touch appli

Answer 1

I assume the ERROR occurs since the web sense at my workplace blocks these downloads.

Solution: I downloaded the required gems: chunky_png, fssm, compass, sass, haml etc.. directly from http://rubygems.org/gems and placed these gems in my local directory.

After this I tried gem install compass. This first searches your local directory. On finding the required gems, installation takes place. Does not require connection to the ruby website.

Note: Run the command from the path where the gems are located

eg: I have placed the gems in C:\Ruby193\lib\ruby\gems\1.9.1\gems

So I run the following command :

C:\Ruby193\lib\ruby\gems\1.9.1\gems>gem install compass

Answer 2

I had a similar problem, it worked on my own private laptop, but failed while using a virtual server at work (running Ubuntu 12.10) that used a proxy.

Following the suggestion I found here, from the command line I defined:

export HTTPS_PROXY=proxy-address:proxy-port-number

export HTTP_PROXY=proxy-address:proxy-port-number

and then my gem install package worked fine.