我读了一本书“ 使用Rails进行敏捷Web开发 ”，并在第16.1章关于Apache / Passenger停下来了。 我需要安装gem旅客和apache2模块。 gem已成功安装，但我不能告诉相同的Apache模块。
终奌站：
〜$ passenger-install-apache2-module
Checking for required software... * Checking for GNU C compiler... Found: yes Location: /usr/bin/gcc …. * Checking for Curl development headers with SSL support... Found: no Error: Cannot find the `curl-config` command. …. Location of httpd: /usr/sbin/apache2 Apache version: 2.2.22 * Checking for Apache 2 development headers... Found: no * Checking for Apache Portable Runtime (APR) development headers... Found: no * Checking for Apache Portable Runtime Utility (APU) development headers... Found: no …. Press Enter to continue,or Ctrl-C to abort. -------------------------------------------- Installation instructions for required software * To install Curl development headers with SSL support: Please run apt-get (!!!) install libcurl4-openssl-dev or libcurl4-gnutls-dev,whichever you prefer. * To install Apache 2 development headers: Please install it with apt-get install apache2-threaded-dev * To install Apache Portable Runtime (APR) development headers: Please install it with apt-get install libapr1-dev * To install Apache Portable Runtime Utility (APU) development headers: Please install it with apt-get install libaprutil1-dev
好的，我尝试安装这个必需的软件，例如：
如何使用Nginx，Passenger，Sinatra创build多个位置
独angular兽vs独立后面的Nginx
乘客产生了许多机架应用程序
如何使用Passenger在Apache下设置Sinatra应用程序？
alexkd@Active-pc ~ $ sudo apt-get install libcurl4-openssl-dev [sudo] password for alexkd: 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: libcurl4-openssl-dev : Depends: libidn11-dev but it is not installable Depends: libkrb5-dev but it is not installable Depends: librtmp-dev but it is not installable E: Unable to correct problems,you have held broken packages.
有什么问题？
我遇到了一些问题，我使用Centos＆Redhat上的这个命令来解决它：
yum install curl-devel
和在Debian和Ubuntu中：
apt-get install libcurl-dev
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