I don't know if this question belongs here, but I'll take a shot. Hi. I'm running ubuntu 11.10 dual-boot with windows vista on my machine. On Ubuntu, I've installed RVM, rails gem, & PostgreSQL (the postgres server, client, & other packages like libpq5, because I installed it via Software Center).
I'm trying to deploy my app on heroku, but seems like i need to install pg gem. I tried to install it, but got this error instead:
ERROR: Failed to build gem native extension.
/home/pcr/.rvm/rubies/ruby-1.9.3-p0/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... * extconf.rb failed *
After searching google & stackoverflow for a while, many people said that libpq-dev has to be installed. I tried, via software center but fail do to unmet dependencies. I tried via apt-get, it said that I need libkrb5-dev and krb5-multidev. I tried
sudo apt-get install libpq-dev libkrb5-dev krb5-multidev, and got this:
The following packages have unmet dependencies: krb5-multidev :
Depends: libkrb5-3 (= 1.9.1+dfsg-1ubuntu1) but 1.9.1+dfsg-1ubuntu2.1 is to be installed
Depends: libk5crypto3 (= 1.9.1+dfsg-1ubuntu1) but 1.9.1+dfsg-1ubuntu2.1 is to be installed
Depends: libgssapi-krb5-2 (= 1.9.1+dfsg-1ubuntu1) but 1.9.1+dfsg-1ubuntu2.1 is to be installed E: Unable to correct problems, you have held broken packages.
But I already have libkrb5-3, libk5crypto3, and libgssapi-krb5-2 (all with version 1.9.1+dfsg-1ubuntu2.1) on my system! I think maybe the version needed is 1.9.1+dfsg-1ubuntu1. So, maybe I have to remove the 1.9.1+dfsg-1ubuntu2.1 packages first. Do you think it's safe for me to remove it? I tried to remove one of them, but software center warns me that it will also remove postgres, openssl-client, smbclient, cups, and many other packages.
What should I do to resolve this? And, is pg gem really necessary to be installed on my local machine to create rails app with postgres as the dbms? Is there a way to "hand over" the responsibility to include pg gem to heroku instead?