我正在学习Ruby on Rails并尝试开发一个应用程序.在我的应用我试图使用默认的开发模式SQLite数据库和PostgreSQL的在生产模式.但是在尝试使用以下命令安装pg gem时出现以下错误:gem install pg
Building native extensions. This could take a while...
ERROR: Error installing pg:
ERROR: Failed to build gem native extension.
/home/tusharkhatiwada/.rvm/rubies/ruby-2.0.0-p247/bin/ruby extconf.rb
checking for pg_config... yes
Using config values from /usr/bin/pg_config
You need to install postgresql-server-dev-X.Y for building a server-side extension or libpq-dev
for building a client-side application.
You need to install postgresql-server-dev-X.Y for building a server-side extension or libpq-dev
for building a client-side application.
checking for libpq-fe.h... no
Can't …