One of my earliest gems was Mash, a useful tool for creating mocking objects as a Hash. One of the most common problems people had with Mash was a simple one: it conflicted with another class of the same name in extlib! To address this problem as well as give the project some room to grow, Mash is now part of a new toolkit called Hashie. Hashie is available now via Gemcutter and the source, as always, is available on GitHub.

Today while working on rails application I figured out that some of the gems are not configured/installed properly and it was creating strange problems and there older versions are also installed. So I decided to reinstall all installed gems.

But I wondered there is no way to automatically reinstall all the gems. What I have to do is first uninstall all the gems one by one then reinstall gems manually.