How do I actually launch?

[shark mace]

I have downloaded the launcher & run it (on mac)

I installed "attach of the b team".

There is no button to launch minecraft.  If I start minecraft from the minecraft launcher, the mod is not there.

What am I missing?

[Melfice]

You know that button you clicked to install the modpack?

Have another look at it. You'll find it won't say "install" any longer. Click that.

[shark mace]

Ah - there is my problem - it does still say "install" - that explains why the install step went so quickly!

Soi, my problem is actually that it didn't install when I clicked the install button.  Any ideas why (no error message appears, just the progress bar for install appears at the bottom of the window briefly, then disappears.