问题
Here is the deal.
$ gem --version
1.1.0
$ sudo gem install mysql -- --with-mysql-config=/usr/local/mysql/bin/mysql_config
Bulk updating Gem source index for: http://gems.rubyforge.org/ ERROR: could not find mysql locally or in a repository
$ sudo gem update
Updating installed gems Bulk updating Gem source index for: http://gems.rubyforge.org/
Updating RedCloth ERROR: While executing gem ... (Gem::GemNotFoundException) could not find RedCloth locally or in a repository
I've tried this, this, this, this, and a ton of others.
None of them have worked for me. Is anyone else having this problem? If so what did you do to fix it that is not mentioned above?
回答1:
First of all as Orion Edwards said make sure you have rubygems 1.2. Unfortunately,
gem update --system
did not work for me.
Instead I had to:
- Manually download rubygems-update-1.2.0 from rubyforge.
- $ sudo gem install /path/to/rubygems-update-1.2.0.gem
- $ update_rubygems
Now that I had rubygems 1.2 I ran
$ sudo gem install mysql -- --with-mysql-config=/usr/local/mysql/bin/mysql_config
Everything is working. Thanks Orion Edwards for steering me in the right direction.
回答2:
Step 1
gem update --system
It probably won't provide the fix itself, but You really want rubygems 1.2. It will save you about 8 days waiting as it doesn't need to do the 'Bulk updating 102304 gems' rubbish any more
It actually looks like it can't find the mysql gem at all, let alone download or install it. You're not behind a proxy server or something weird like that?
If it's something to do with your rubygems or the net, rather than mysql specifically, then the gem update --system should reveal it too
回答3:
Do you have different ruby versions on your system? If you're running the Darwin-supplied ruby binary, but installed ruby gems under /usr/local, then you'll get errors like this. Even if you've aliased ruby to point to /usr/local, the gem command may fail if the proper ruby binary is not resolved correctly by your shell's $PATH. Also, if /usr/local/bin is located physically after /usr/bin in your path, gem will use /usr/bin/ruby to load the gems from /Library/Ruby/Gems/1.8/gems/. You may want to symlink /usr/lib/ruby/gems/1.8/gems to /Library/Ruby/Gems/1.8/gems/ to prevent this sort of thing.
回答4:
Ryan Grove has a blog post with the answer:
sudo env ARCHFLAGS="-arch i386" gem install mysql -- \
--with-mysql-dir=/usr/local/mysql --with-mysql-lib=/usr/local/mysql/lib \
--with-mysql-include=/usr/local/mysql/include
回答5:
Installing XCode solved this problem for me.
This is because it includes the make and gcc tools, which are required by the gem.
来源：https://stackoverflow.com/questions/41134/how-do-i-install-the-mysql-ruby-gem-under-os-x-10-5-4