问题
I am getting:
[!] The `master` repo requires CocoaPods 0.18.1 -
Update Cocoapods, or checkout the appropriate tag in the repo.
How to checkout cocoapods?
回答1:
To update CocoaPods you can run:
$ [sudo] gem update cocoapods
If you would like to try a pre-release version of CocoaPods you can run:
$ [sudo] gem update cocoapods --pre
from here
回答2:
I had a similar problem and upgrading to cocoapods 0.18.1 is not an option for me (at the moment).
In my case I wanted to stick with cocoapods 0.16.4. So, I double checked to make sure I was not using version 0.18.1.
$ pod --version
0.16.4
If you need to: uninstall any new version of cocoapods (when prompted select which version of cocoapods you want to uninstall):
$ sudo gem uninstall cocoapods
I then switch my local repository from the 'master' to the '0.16' tag. I will be downgrading to repo '0.16' because that is more inline with my version of cocoapods (0.16.4).
$ cd ~/.cocoapods/master/
$ git checkout 0.16
You should now be using repo '0.16' instead of the 'master'.
$ cd ~/.cocoapods/master && git branch
* 0.16
master
Finally, I had to clean up my XCode project workspace by completely re-installing my Pods.
$ cd to/your/project
$ rm -rf Pods/
$ rm Podfile.lock
$ pod install
Now, my cocoapod version matches my repo version. Note: You switched your local repository from the 'master'. You can always switch back to the 'master' repo using git checkout master.
回答3:
All the other answers didn't help here. I'm no ruby expert, but I think my problem was, that I had 2 Ruby versions installed:
the one that comes with OS X
and one I had installed with rvm (Ruby Version Manager).
When I updated the gems, the wrong gems got updated. The symptom was, that the after the update the command line told me cocoapods was version 0.20.2, but when I did pod --version I got 0.16.0 back.
I guess this could have been corrected with a symlink cleanup at the wright place, but I decided to get rid of the second Ruby installation instead. I found a way to do it here - the answer of Erick.
After that I updated the cocoapod gem with sudo gem update --system, the the cocoapods with sudo gem install cocoapods. Now the pod install worked :-)
I hope the above makes sense. Please edit, if I'm wrong.
回答4:
Try gem install cocoapods:1.1.1 --user-install where replace 1.1.1 to your desired virsion
来源：https://stackoverflow.com/questions/16511705/the-master-repo-requires-cocoapods-0-18-1