Windows 7 64-bit: Could not find a valid gem 'compass' (>= 0), here is why: Unable to download data from https://rubygems.org/

Question

I cannot install compass. I want to install compass on my project so when I try to update, I get this:

c:\\wamp\\www\\danjasnowski.com>gem install com

Answer 1

Just an additional option for lazy people who don't want to deal with the SSL certificates, you can just uninstall and re-install the latest ruby environment. I used to have 1.8 something and reinstalling to 2.2.1 did the trick.

link for windows

Answer 2

If there are still guys like me that can't find solution in any of the comments before mine, here's how I found my working way:

I went to rubygems.org/pages/download and downloaded zipped file. Then I unpacked it somewhere on my C: partition and opened it once I unpacked it. Find a file "setup.rb" and double click on it, it will install something, I don't remember. I guess ruby gems. Then close everything, go again and open cmd on windows and try typing "gem install sass". It worked for me. Sass installed. :)

Hope I will help someone, because I lost my mind looking for solution to this problem whole day today. :)

Answer 3

My solution was this: I uninstalled my current ruby installation which is for x64 system and replaced it with ruby x86/32bit installer and followed the steps given by @joelparkerhenderson.

Though I have x64 system, this is the only solution that worked for me.

Answer 4

Try upgrading your SSL certificates.

1. Download http://curl.haxx.se/ca/cacert.pem

2. Save this file anywhere you want, such as:

   C:\cacert.pem
   

3. On the command line, tell Ruby where to find the cert file, such as:

   set SSL_CERT_FILE=C:\cacert.pem
   

4. Try again.

   gem install compass
   

5. If it works, you can make the cert file permanent by adding it in your control panel.

Credit and more info: https://gist.github.com/fnichol/867550