我正在尝试在Ubuntu 14.10上安装gollum。
当我尝试使用gem install gollum时，我看到下面的错误:
/usr/bin/ruby2.1 extconf.rb
mkmf.rb can't find header files for ruby at /usr/lib/ruby/include/ruby.h
ERROR: Error installing gollum:
ERROR: Failed to build gem native extension.
Building has failed. See above output for more information on the failure.
extconf failed, exit code 1
Gem files will remain installed in /var/lib/gems/2.1.0/gems/charlock_holmes-0.7.3 for inspection.
Results logged to /var/lib/gems/2.1.0/extensions/x86_64-linux/2.1.0/charlock_holmes-0.7.3/gem_make.out
我发现libicu-dev是必需的。
所以我使用sudo apt-get install libicu-dev，但收到这个错误:
$ sudo apt-get install libicu-dev
Reading package lists... Done
Building dependency tree
Reading state information... Done
Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved out of Incoming.
The following information may help to resolve the situation:
The following packages have unmet dependencies:
libicu-dev : Depends: libicu52 (= 52.1-6) but 52.1-6ubuntu0.3 is to be installed
E: Unable to correct problems, you have held broken packages.
我尝试了apt-get install -f，但错误仍然存在。
我该如何解决这个问题?谢谢你！
sudo apt install libicu52=52.1-6
sudo apt-get install libicu-dev
安装所需版本。会有一个降级警告，你需要确认它看起来像这样:
The following packages will be DOWNGRADED:
libicu52
0 upgraded, 0 newly installed, 1 downgraded, 0 to remove and 0 not upgraded.
Need to get 7,643 kB of archives.
After this operation, 0 B of additional disk space will be used.
Do you want to continue? [Y/n]
你必须重新安装这个libicu，我在ubuntu 22上解决了这个问题:
- apt purge libicu-dev libicu
- apt更新
- apt install libicu-dev libicu