在windows上的導軌上安裝postgres gem時發生錯誤

Question

我正在學習在windows 8.1上的rails上使用ruby。當我必須安裝pg（postgres）gem時，我卡住了。具體而言，這是錯誤：

錯誤：錯誤安裝PG：

Error: failed to build gem natve extension 
    C:/Rails Installer/Ruby2.1.0/bin/ruby.exe extconf.rb 
    checking for pg_config... no 
No pg_confg... trying anyway. If build 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. 

我堅持，任何的建議將幫助。由於

Answer 1

試圖找出其中pg_config使用Windows命令行工具位於（來源：https://superuser.com/questions/49104/how-do-i-find-the-location-of-an-executable-in-windows）：

where pg_config 

複製的路徑返回，並用它

bundle config build.pg --with-pg-config=/path/found/for/pg_config 

（基於ERROR: Failed to build gem native extension on Mavericks）