First post on the forums, and surprise surprise: it's a "lol eet doesnt wurk!" thread! I'd use search, but...
Every now and then when I try to launch Minecraft I get this nonsense: "Could not find the main class. net.minecraft.launcherframe The application will now close," or something to that effect. Had to recreate it from memory since the thing decided it'd be a fun prank to work right when I'm trying to get help. Sometimes the program works absolutely peachy, and when I do run into the error trying two or three more times makes it shape up and behave.
Google tells me this problem is somewhat confined to Linux systems, so I'm supposing that I couldn't be getting this on Windows 7? I have the latest Java.
The search error is because you have to be logged in to search, not great :|
You get that on Linux systems when the path is incorrect and/or it can't find the correct .jar file.
If it is intermittent it is probably your Anti-virus scanning the file when the launcher is trying to open it, so add an exception for it. (The minecraft files are in %appdata%\.minecraft)
This SAME exact problem happens to me. I figure it's because I ran the Minecraft launcher from a .RAR file the very first time I launched it. Whenever I run it from the original RAR file I launch it in, the error doesn't appear. I'm not sure how to get it to go away, but thankfully it starts working after a few clicks. That's the weird part. Any thoughts?
what about me? I got a "true" when I put my name in but I get the same message when I try to start minecraft. also, my name to the left, that is not my log in but it is my name on these forums. maybe the previous 2 paid for minecraft but have a different forum name, like I do? so please do not yell "pirate" before you have all the facts.
back to the question, why does it happen? every time I click on minecraft, it pops up on the 1st try but on the 2nd try, minecraft works. annoying but still, why? I would like to get rid of the message all together. I click on it from my desktop btw.