The Default server just would not start. When I tried running my assembly line, the error message was:
CTGDIC027E: Connection to the server Default.tdiserver could not be obtained
Looking at the console when trying to fire up the defaul server, the error was:
CTGDKD002E Invalid value specified for 'api.remote.naming.port' : '1099nullnullnull'
CusiousMitch gave me the solution to this. He ran into the same issue, luckily.
See CuriousMitch's blog here for the solution
So, in the TDISOL directory, open up solution.properties, find the "api.remote.naming.port" variable and correct it to just having the value of "1099"