I recently downloaded sins of the prophet for this game and started playing it normally without no problem at all. However, I tried to start it up on dev mode (just to test try out units) but then it crashed, giving me the "cannot convert " to enum value" error. I checked the log files and it came up with this. 

D3D9 - ChangeDevice...
DeviceType.......... HAL
AdapterOrdinal.......0
AdapterFormat....... X8R8G8B8
BehaviorFlags....... HARDWARE_VERTEXPROCESSING
BackBufferSize..... 1440 x 900
BackBufferFormat.... A8R8G8B8
DepthStencilFormat.. D32 (Enabled)
MultiSampleType..... IDSMultisampleNone (Quality=0)
IsWindowed.......... 0
ChangeDevice Result. success
Setup:DataFileSystem
Added 4 Fixed Data File paths
> .\Rebellion
> .\Diplomacy
> .\Entrenchment
> .
Found 1 Available Mods in C:\users\crossover\My Documents\My Games\Ironclad Games\Sins of a Solar Empire Rebellion\Mods-Rebellion v1.85 Dev
> SotP Alpha v.0.81.2
Found 1 Enabled Mods in C:\users\crossover\My Documents\My Games\Ironclad Games\Sins of a Solar Empire Rebellion\Mods-Rebellion v1.85 Dev\EnabledMods.txt
> SotP Alpha v.0.81.2
D3DXCreateEffect Error Buffer: C:\program files\steam\steamapps\common\Sins of a Solar Empire Rebellion\PipelineEffect\Particle_MeshShadowed.fx(114,6): warning X3557: loop only executes for 1 iteration(s), forcing loop to unroll

D3DXCreateEffect Error Buffer: C:\program files\steam\steamapps\common\Sins of a Solar Empire Rebellion\PipelineEffect\GS_ShadowedAsteroid.fx(114,6): warning X3557: loop only executes for 1 iteration(s), forcing loop to unroll

D3DXCreateEffect Error Buffer: C:\program files\steam\steamapps\common\Sins of a Solar Empire Rebellion\PipelineEffect\GS_ShadowedShip.fx(255,6): warning X3557: loop only executes for 1 iteration(s), forcing loop to unroll
C:\program files\steam\steamapps\common\Sins of a Solar Empire Rebellion\PipelineEffect\GS_ShadowedShip.fx(257,7): warning X3557: loop only executes for 1 iteration(s), forcing loop to unroll
C:\program files\steam\steamapps\common\Sins of a Solar Empire Rebellion\PipelineEffect\GS_ShadowedShip.fx(257,7): warning X3557: loop only executes for 1 iteration(s), forcing loop to unroll
C:\program files\steam\steamapps\common\Sins of a Solar Empire Rebellion\PipelineEffect\GS_ShadowedShip.fx(128,6): warning X3557: loop only executes for 1 iteration(s), forcin

Can someone please help me with this! Thank you