Question

不要安装这个gem，我得到了这个回复。

greg@greg-VirtualBox:~$ gem install tweetstream
Building native extensions.  This could take a while...
ERROR:  Error installing tweetstream:
ERROR: Failed to build gem native extension.

/home/greg/.rvm/rubies/ruby-1.9.3-p362/bin/ruby extconf.rb
checking for main() in -lssl... yes
checking for main() in -lcrypto... yes
checking for openssl/ssl.h... yes
checking for openssl/err.h... yes
checking for rb_trap_immediate in ruby.h,rubysig.h... no
checking for rb_thread_blocking_region()... yes
checking for inotify_init() in sys/inotify.h... yes
checking for writev() in sys/uio.h... yes
checking for rb_wait_for_single_fd()... yes
checking for rb_enable_interrupt()... yes
checking for rb_time_new()... yes
checking for sys/event.h... no
checking for epoll_create() in sys/epoll.h... yes
creating Makefile

make
compiling ssl.cpp
make: g++: Command not found
make: *** [ssl.o] Error 127


Gem files will remain installed in /home/greg/.rvm/gems/ruby-1.9.3-       p362/gems/eventmachine-1.0.3 for inspection.
Results logged to /home/greg/.rvm/gems/ruby-1.9.3-p362/gems/eventmachine-      1.0.3/ext/gem_make.out

Answer 1

make：g ++：找不到命令阅读输出应该是你应该学会做的事情。特别是当事情没有按计划进行时。

取决于您的Linux风格。使用包管理器并安装gcc包。

Arch Linux ：pacman -Syu gcc

Ubuntu / Debian / Mint ：apt-get install gcc（您可能还需要安装build-essential）

Fedora ：yum install gcc gcc-c++或yum groupinstall "Development Tools"（适用于所有开发工具）

安装编译器后重新运行gem安装，除非你缺少其他依赖项，否则应该没问题

Answer 2

您需要安装gcc。运行此行：

sudo apt-get install build-essential

它适用于我（使用ubuntu）

Answer 3

刚刚看到构建在tweetstream的github上失败了。

sudo install g++

固定

Answer 4

对于Amazon Linux：sudo yum install gcc-c++

宝石安装错误

4 个答案: