Hey,

I just made a modpack and recently added EE3 and this error popped up in the console:

2014-07-17 18:58:14 [SEVERE] [EE3] The mod EE3 is expecting signature @fingerprint@ for source EquivalentExchange3-1.6.4-0.1.142.jar, however there is no signature matching that description

It still lets me play, just a small problem nothing much.

Thanks,
Kraazy

Not a bug, just means the jar wasn't signed for authenticity.