I'm new to FRED2_Open and I've read some tutorials, but whenever I create a mission in FRED2_Open and try to run it in Freespace, I get an 'Error Unable to Load File' message, and mission doesn't load.
I'm using the latest P4 version of FRED2_Open (2006/10/14_r) and fs2_open_3_6_5, with whatever the newest .vp files were off the SCP website. However, when I run FRED2, the I can create and play missions, but it doesn't recognize some of models for my ships, and I get a bunch of weird errors on start up, but FRED2 eventually runs.
On a related note I suppose, I tried to replay the Derelict SCP Edition Campaign, and I go the same unable to load file message. This is all after installing inferno mod, but I've removed the folder that, and have configured my game to load with no mods.
Any clue with what might be wrong?