C:\Steam Powered\SteamApps\common\SpaceEngineersModSDK\Tools\MwmBuilder>md .\out

A subdirectory or file .\out already exists.

C:\Steam Powered\SteamApps\common\SpaceEngineersModSDK\Tools\MwmBuilder>MwmBuild
er.exe /o:".\out"
: ERROR:
    C:\Steam Powered\SteamApps\common\SpaceEngineersModSDK\Tools\MwmBuilder\Smal
lDuelFinJetEngine.fbx:
    System.Exception: Number of meshes is 0 and no animation present!
       at MwmBuilder.MyModelBuilder.Build(String filename, String intermediateDi
r, String outputDir, MyModelConfiguration configuration, Byte[] havokCollisionSh
apes, Boolean checkOpenBoundaries, IMyBuildLogger logger)
       at MwmBuilder.ProgramContext.ProcessItem(ItemInfo item, String outputDir,
 Byte[] havokCollisionShapes, Boolean checkOpenBoundaries)
       at MwmBuilder.ProgramContext.ProcessFile(String file, String outputDir, D
ictionary`2 defaultVars, Boolean exportXml, Boolean forceBuild, Boolean checkOpe
nBoundaries)
       at MwmBuilder.ProgramContext.ProcessFileSafe(String file)

C:\Steam Powered\SteamApps\common\SpaceEngineersModSDK\Tools\MwmBuilder>pause
Press any key to continue . . .