inside of rpcmining.cpp search for any instances of "_target" and replace with "target" and recompile. then mining should be good to go.
Did you get your source from git? I'm using the 64bit linux binary from the google download link provided earlier....
yupp, the github has been updated, although they have not relayed that information here
https://github.com/Climbee/crowncoin
ill make a pull request as well
https://github.com/Climbee/crowncoin/pull/1
EDIT: Well it seems like im only being affected on some of the blocks that i am submitting, on my test pool with my own miners it has no problem pulling in blocks, but on the main pool it was having a few troubles with
{"code":-1,"message":"ReadCompactSize() : size too large"}
The reason I am using crw for all of my testing to fix merged mining is the low diff, which helps me quickly calculate whether or not my changes are working. hopefully it stays like this for a while.