Hi, I inherited an old installation of Redmine that is currently running 0.9.6. Yes I realize how old that is. I would like to upgrade it, either all at once, or if that's not supported, an interim major version at a time.
I have followed the instructions on the page how to upgrade in the wiki, but always get an error when running rake generate_session_store. It says:
rake aborted!
ERROR: 'rake/rdoctask' is obsolete and no longer supported. Use 'rdoc/task' (available in RDoc 2.4.2+) instead.
Fair enough. So I run gem install -v=2.4.2 rdoc
That fails after trying to install ri documentation. So I tried it with gem install -v=2.4.2 --no-ri rdoc. That appears to finish successfully. Then I run rake generate_session_store again and get the same error as before.
I'm fairly certain this is all just a matter of failed dependencies or outdated required software but I have no idea how to fix it if doing what the error says to do doesn't make any difference.
Can someone help me understand either what I'm doing wrong in the above, or if I just need to follow a different path to go from my 0.9.6 to something current. Ultimately that's all I want.
Upgrading an old Redmine