all versions Omnicompression+lib upper:
omnimatter_compression_0.2.1 + omnilib_1.0.12
Cause a loading error: http://i.imgur.com/gJihe3L.png

I did a test pack with pure mods:
pure all Angels + Pure all Bob mod still cause same error during load

with only bobmods and without all angels mods,
omnilib_1.0.15 + omnimatter_compression_0.3.2
working fine.

upd: I did some tests and how I see the problem with the lack of compressed ores from the angel's mods.

Update all to the latest and check.

I did tests with the all latest versions of mods. And factorio version 0.15.31 and 0.15.32

That minimal Angel`s setup without omnicompression is working fine:
http://i.imgur.com/xUfZ8sj.png

but if i try to add lastest omnilib and compressions(without bobmod)
http://i.imgur.com/2seYSjz.png

then i got an error:
http://i.imgur.com/zUA6hb0.png

with lastest bobmod error is same

Could you put the modpack that gives the error into a rar file and link me here?

Here is:
https://drive.google.com/file/d/0BzaOb29UWaiQWWU2SE1KMXphR3M/view?usp=sharing

Been fixed for the next update.

Now last version is working fine. Thank you wery much!

btw: second compression research is not have any description:
http://i.imgur.com/1x15hLO.png