Trouble with opengl and Qt 5.1

MyQtAccount

I'm trying to build a preexisting project but get the following:
error: cannot find -lGL

opengl was added into the .pro file.

Looking at other posts I tried this:
sudo apt-get install libgl1-mesa-dev libglu1-mesa-dev

I keep getting this though:
The following packages have unmet dependencies:
libgl1-mesa-dev : Depends: libgl1-mesa-glx (= 9.0.1-0ubuntu1~precise)
E: Unable to correct problems, you have held broken packages.

Attempting to install glx gives:
The following packages have unmet dependencies:
libgl1-mesa-glx : Depends: libglapi-mesa (= 9.0.1-0ubuntu1~precise)

It tells me libglapi-mesa is already installed and up to date, so I'm at a loss for what to try next.

SGaist

Hi,

Did you try to find which package is broken ?

MyQtAccount

No, I really don't know what to do now. This is on Ubuntu and I'm not very familiar with it.

john_god

Try the package libqt5opengl5-dev

MyQtAccount

I tried that but it just tell me it can't locate the package:

$ sudo apt-get install libqt5opengl5-dev
E: Unable to locate package libqt5opengl5-dev

Was there a different way I was supposed to do it?
Installing aptitude and using that didn't find it either.

JKSH

Try uninstalling libglapi-mesa (and any other broken packages), and then reinstalling them.