can't activate activesupport (>= 2.3.2, runtime), already activated activesupport-2.1.2. what does it mean?

Question

while trying to start some old revision of an opensource rails project confronted with a cloudy error message:

"can't activate activesupport (>= 2.3.2, runtime), already activated activesupport-2.1.2"

What does it mean? Either versions of rails and activesupport are installed on my box.

I'm confused...

Answer 1

Generally, a gem or plugin is loading 2.1.2 before Rails attempts to load 2.3.2. Best way to figure it out might be to comment out each gem requirement in environment.rb one at a time and see what happens.