I've installed Eclipse 4.2 Juno. Now I want to install aptana for developing ruby, but I get the following error,
Unable to read repository at http://download.aptana.com/studio3/plugin/install/content.jar.
Unable to read repository at http://download.aptana.com/studio3/plugin/install/content.jar. Read timed out
I assume that by now you have probably solved the problem, but I had exactly the same problem and found the solution after many searches, so for the sake of any others searching here...
The URL you need to enter in the 'Install New Software' dialog is
http://download.aptana.com/studio3/plugin/install