[英]Unable to install PG gem on Fedora 17
The pg gem is being stubborn so I can't load my app on new computer. pg gem 很顽固,所以我无法在新计算机上加载我的应用程序。 Seems like multiple problems, not being able to locate pg_config and then extconf.rb似乎是多个问题,无法找到 pg_config 和 extconf.rb
#psql working...
psql (9.2.1)
Type "help" for help.
nd =>
\q
$ pg_config:
#adding the path to bashrc...
$ nano .bashrc
PATH=/usr/pgsql-9.2/bin:$PATH
#seems to work...
pg_config: /usr/pgsql-9.2/bin/pg_config
$ sudo gem install pg
#but i get the same errors...
Building native extensions. This could take a while...
.......
ERROR: Error installing pg:
ERROR: Failed to build gem native extension.
/usr/bin/ruby extconf.rb
checking for pg_config... no
No pg_config... trying anyway. If building fails, please try again with
--with-pg-config=/path/to/pg_config
checking for libpq-fe.h... no
Can't find the 'libpq-fe.h header
*** extconf.rb failed ***
Could not create Makefile due to some reason, probably lack of
necessary libraries and/or headers. Check the mkmf.log file for more
details. You may need configuration options.
any linux people out there that have dealt with this problem?那里有处理过这个问题的Linux人吗?
这是通过解决的
$ yum install /usr/include/libpq-fe.h
对于Fedora 20+,需要以下包:
sudo yum install postgresql-devel
for fedora 30:对于软呢帽 30:
$sudo dnf install libpq-devel
then:然后:
$gem install pg
Building native extensions. This could take a while...
Successfully installed pg-1.1.4
Parsing documentation for pg-1.1.4
Installing ri documentation for pg-1.1.4
Done installing documentation for pg after 1 seconds
1 gem installed
~ Hi 〜嗨
I had the same problem installing the gem "pg" in my Rails project, when ran the command "bundle install" had the same error, in my case partiuclar solve it as follows: 我在我的Rails项目中安装gem“pg”时遇到同样的问题,当运行命令“bundle install”有同样的错误时,在我的情况下partiuclar解决它如下:
I use Fedora 19, I guess it can be solved in the same way in Fedora 17: 我使用Fedora 19,我猜它可以在Fedora 17中以相同的方式解决:
I Installed Postgres using the following tutorial: 我使用以下教程安装了Postgres:
Then, I added the next line in my ~/.bashrc to solve the problem with the pg_config: 然后,我在〜/ .bashrc中添加了下一行来解决pg_config的问题:
PATH = / usr/pgsql-9.2/bin: $ PATH
And finally to solve the problem with libpq-fe.h, I installed postgresql-devel as follows: 最后用libpq-fe.h来解决问题,我安装了postgresql-devel,如下所示:
# yum install postgresql92-devel
Finally in my Rails project ran the command "bundle install" and no more errors. 最后在我的Rails项目中运行命令“bundle install”并且没有更多错误。
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