RobsMacAir:~ rob$ gem uninstall my_gem -v=2.3.8 ERROR: While executing gem ... (Gem::InstallError) Unknown gem my_gem = 2.3.8
Sorry, I forgot to tell the group to e-mail me updates on the post. I'm sorry, Colin is right, what I wrote was just an example.
I expected after deinstalling rails 2.3.8 gem list local would find the other rails versions. But did this blow away all rails?
The gem command is being cautious. It doesn't want to delete anything but the absolutely necessary. I personally would not want to remove a gem and find out that the command blew away 10 other gems just because they are either required by the one I just deleted or compatible with it. What if I wanted to keep them because they serve me for other purposes?
Removing gems is a little boring but it shouldn't take you more than 10 or 15 minutes to remove all the ones you need to remove once you get the hang of it.
I admit I am in learning mode. I thought this was a place to help out beginners.
Absolutely. I have had great help in this forum from day 1.
I have been programming in Assembler, C, and tons of SQL and now some PHP and writing shell scripts since the late 70s, and the complexity and impreciseness of the books and tutorials are amazing RoR,
I can't say that I agree with you here. What _is_ confusing is that there are so many out of date tutorials and mailing list archive entries that are found when searching for data on rails. This is inevitable unfortunately if you want to experiment with fast moving technologies like Rails. All the ones you mention have been little changed for decades so the documentation is stable.
+1 with Colin here
Is there a way to just go into the file system, and delete all the directories for Rails and just do a fresh reinstall. I cannot figure out rvm,
After reading an entry on the internet I tried just that a week or so ago as the entry specified that it _might_ be possible. However, after I blew away all folders in the gem directory and asked for the gem list all the gems were still there and I had to run the commands manually anyway to make sure everything was gone as it should. I didn't want to have problems during re-installation. You're going to need to uninstall the gems manually and probably selectively I'm afraid, but if you find a way to do it all at once, please let me (us) know.