Invalid option -None

[GrauBlitz]

When im tryinng to export a model (Blender 2.93 or Blender 3.1) i only get the following error in the blender console:

[ INFO] Writing log file to: G:\/blender2ogre.log
[ INFO] Target_path: G:\
[ INFO] Target_file_name: untitled.blend
[DEBUG] Target_file_name_no_ext: untitled
[ INFO] * Processing Scene: untitled, path: G:\
[DEBUG] ABABA Cube
[DEBUG] ABABA Camera
[ INFO] * Processing Materials
[ INFO] * Exporting root node: Cube
[ INFO]   - Vertices: 8
[ INFO]   - Loop triangles: 12
[ INFO] * Generating: Cube.mesh.xml
[ INFO] * Writing shared geometry
[DEBUG] * Mesh has NO custom normals
 + Faces [==================================================>] 100.0%
[ INFO] - Done at 0.01 seconds
[ INFO] * Writing submeshes
[ INFO] - Done at 0.03 seconds
[ INFO] - Created Cube.mesh.xml at 0.03 seconds
[ERROR] OgreMeshTool finished with non-zero status, check OgreMeshTool.log
[ INFO] C:\sdk\OgreSDK\bin\Release\OgreMeshTool.exe -e -O puqs -None G:\Cube.mesh.xml
[ INFO] - Created Cube.mesh in total time 0.09 seconds
[ INFO] * Exporting root node: Camera
[ INFO] - Exported Ogre Scene: G:\untitled.scene
________________________________________________________________________________
Report:
  ERRORS:
    - OgreMeshTool finished with non-zero status converting mesh: (Cube.mesh.xml), it might not have been properly generated
  Original Vertices: 8
  Exported Vertices: 24
  Original Faces: 12
  Exported Triangles: 12
  MESHES: 1
  CAMERAS: 1

Extended Report:
  MESHES:
    . Cube
  CAMERAS:
    . Camera
________________________________________________________________________________

blender2ogre.log

[...]
2022-04-13 11:22:28 [ INFO] - Created Cube.mesh.xml at 0.03 seconds
2022-04-13 11:22:28 [ERROR] OgreMeshTool finished with non-zero status, check OgreMeshTool.log
2022-04-13 11:22:28 [ INFO] C:\sdk\OgreSDK\bin\Release\OgreMeshTool.exe -e -O puqs -None G:\Cube.mesh.xml
[...]

OgreMeshTool.log

Invalid option -None
Couldn't identify extension of filename '-None'
Exception caught: Could not open '-None'

Blender Plugin Config:
OGRETOOLS_XML_CONVERTER points to my ogre-next (2.3.0) SDK OgreMeshTool.exe

[paroj]

seems like MESH_TOOL_VERSION is somehow None for you:

blender2ogre/io_ogre/util.py

Line 213 in 02caf60

cmd.append('-%s' %config.get('MESH_TOOL_VERSION'))

[GrauBlitz]

That is interesting, i dont see the mentioned Version selection on the Export Settings.

https://github.com/OGRECave/blender2ogre/#ogrenext-tips

Just the Swap Axis and Clean up xml files settings.

EDIT: The console also shows this error:

blender-3.1.2\3.1\scripts\addons\io_ogre\ui\export.py:116
rna_uiItemR: property not found: OGRE_OT_export.EX_V2_MESH_TOOL_EXPORT_VERSION

[sercero]

Can you try to do what says here? Updating to new versions

Delete your .pickle file and reconfigure blender2ogre to see if this is still happening.