I do a lot of work in Lua and work primarily in Eclipse Galileo. Unfortunately, there doesn't appear to be a working plugin for syntax highlighting. I've tried pretty much all available versions of LuaEclipse and LunarEclipse (including beta previews) but has gotten me nowhere. In both cases I get errors while installing them, referring to missing packages.
The frustrating thing is all I really care about is syntax highlighting, which should be trivial. Has anyone else had any luck with this?
Edit: Thanks for the suggestions. I've pasted the error I'm getting when installing LuaEclipse 1.3.1 preview below.
An error occurred while collecting items to be installed
session context was:(profile=epp.package.cpp, phase=org.eclipse.equinox.internal.provisional.p2.engine.phases.Collect, operand=, action=).
No repository found containing: osgi.bundle,org.eclipse.cvs,1.0.300.v200909170800
No repository found containing: osgi.bundle,org.eclipse.jdt.core,3.5.1.v_972_R35x
No repository found containing: osgi.bundle,org.eclipse.jdt.ui,3.5.1.r351_v20090821-0800
No repository found containing: osgi.bundle,org.eclipse.team.cvs.ui,3.3.201.R35x_v20090826-0905
No repository found containing: osgi.bundle,org.eclipse.ui.views.log,1.0.100.v20090731
No repository found containing: org.eclipse.update.feature,org.eclipse.cvs,1.1.101.R35x_v20090811-7E79FEd9KKF5H2YDWFLLBL01A16
No repository found containing: binary,org.eclipse.cvs_root,1.1.101.R35x_v20090811-7E79FEd9KKF5H2YDWFLLBL01A16
LuaEclipse is the only Lua plugin for Eclipse that I can find. However there are a number of other editors you could try if it is not installing correctly for you.
Pipmak Wiki lists various Lua editors that you could try.
Update: Your installation error message is complaining about the absence of CVS. This error sometimes occurs when you're behind a proxy server, you can set Eclipse to use your proxy as follows:
If you aren't behind a proxy. It may be that your P2 repository is in an inconsistent state. HAve you tried installing to a clean Eclipse install?