TroubleShooting [Troubleshooting]cocoapods update problem 前陣子在更新cocoapods (gem update cocoapods)時發生了些error，如下： /Users/hothero/.rvm/rubies/ruby-1.9.2-p290/bin/ruby extconf.rb checking for -std=c99 option to compiler... *** extconf.rb failed *** Could not create Makefile due to some reason, probably lack of necessary libraries and/or headers. Check
ruby Install Redmine with Nginx, RVM, MySQL on Ubuntu Server 12.04 LTS 在安裝Redmine前先去官方文件確認相關版本資訊與限制。可得知： Ruby版本支援：ruby 1.8.7, 1.9.2, 1.9.3 Rails版本需要：2.3.14 "Ruby 1.9 is not supported yet. You have to use Ruby 1.8.x as stated above."，故Ruby還是先安裝1.8.x較保險。 其他限制因此處安裝Redmine最新版不需擔心。 RVM Ruby 1.8.7
ruby Install Ruby 1.9.2（Solved error : Error running 'make '"） When you try to install ruby 1.9.2 by "rvm install 1.9.2", get the suck error "Error running 'make '". Just like this discussion. Sovled this. You can try a solution on this discussion curl -O ftp: