Traceback error while exporting as fbx #96951

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Carol · 2022-04-01T15:06:41+02:00

Carol commented

2022-04-01 15:06:41 +02:00

System Information
Operating system: Windows-10-10.0.19041-SP0 64 Bits
Graphics card: NVIDIA GeForce RTX 2070 with Max-Q Design/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 497.33

Blender Version
Broken: version: 3.1.0, branch: master, commit date: 2022-03-08 18:16, hash: c77597cd0e
Worked: (newest version of Blender that worked as expected)

Short description of error
Unable to export as fbx

FBX export starting... 'C:\\Users\\Yalin\\Downloads\\新建文件夹 (2)\\gun.fbx'
Python: Traceback (most recent call last):
  File "C:\Program Files\Blender Foundation\Blender 3.1\3.1\scripts\addons\io_scene_fbx\__init__.py", line 644, in execute
    return export_fbx_bin.save(self, context, **keywords)
  File "C:\Program Files\Blender Foundation\Blender 3.1\3.1\scripts\addons\io_scene_fbx\export_fbx_bin.py", line 3213, in save
    ret = save_single(operator, context.scene, depsgraph, filepath, **kwargs_mod)
  File "C:\Program Files\Blender Foundation\Blender 3.1\3.1\scripts\addons\io_scene_fbx\export_fbx_bin.py", line 3109, in save_single
    fbx_objects_elements(root, scene_data)
  File "C:\Program Files\Blender Foundation\Blender 3.1\3.1\scripts\addons\io_scene_fbx\export_fbx_bin.py", line 2909, in fbx_objects_elements
    fbx_data_mesh_elements(objects, me_obj, scene_data, done_meshes)
  File "C:\Program Files\Blender Foundation\Blender 3.1\3.1\scripts\addons\io_scene_fbx\export_fbx_bin.py", line 1177, in fbx_data_mesh_elements
    elem_data_single_int32_array(lay_uv, b"UVIndex", (uv2idx[uv_id] for uv_id in _uvtuples_gen(t_luv, t_lvidx)))
  File "C:\Program Files\Blender Foundation\Blender 3.1\3.1\scripts\addons\io_scene_fbx\fbx_utils.py", line 505, in elem_data_single_int32_array
    return _elem_data_single(elem, name, value, "add_int32_array")
  File "C:\Program Files\Blender Foundation\Blender 3.1\3.1\scripts\addons\io_scene_fbx\fbx_utils.py", line 452, in _elem_data_single
    getattr(sub_elem, func_name)(value)
  File "C:\Program Files\Blender Foundation\Blender 3.1\3.1\scripts\addons\io_scene_fbx\encode_bin.py", line 161, in add_int32_array
    data = array.array(data_types.ARRAY_INT32, data)
  File "C:\Program Files\Blender Foundation\Blender 3.1\3.1\scripts\addons\io_scene_fbx\export_fbx_bin.py", line 1177, in <genexpr>
    elem_data_single_int32_array(lay_uv, b"UVIndex", (uv2idx[uv_id] for uv_id in _uvtuples_gen(t_luv, t_lvidx)))
KeyError: ((nan, nan), 0)

location: <unknown location>:-1

Exact steps for others to reproduce the error
I only remembered that I imported an auto-mirror

**System Information** Operating system: Windows-10-10.0.19041-SP0 64 Bits Graphics card: NVIDIA GeForce RTX 2070 with Max-Q Design/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 497.33 **Blender Version** Broken: version: 3.1.0, branch: master, commit date: 2022-03-08 18:16, hash: `c77597cd0e` Worked: (newest version of Blender that worked as expected) **Short description of error** Unable to export as fbx ``` FBX export starting... 'C:\\Users\\Yalin\\Downloads\\新建文件夹 (2)\\gun.fbx' Python: Traceback (most recent call last): File "C:\Program Files\Blender Foundation\Blender 3.1\3.1\scripts\addons\io_scene_fbx\__init__.py", line 644, in execute return export_fbx_bin.save(self, context, **keywords) File "C:\Program Files\Blender Foundation\Blender 3.1\3.1\scripts\addons\io_scene_fbx\export_fbx_bin.py", line 3213, in save ret = save_single(operator, context.scene, depsgraph, filepath, **kwargs_mod) File "C:\Program Files\Blender Foundation\Blender 3.1\3.1\scripts\addons\io_scene_fbx\export_fbx_bin.py", line 3109, in save_single fbx_objects_elements(root, scene_data) File "C:\Program Files\Blender Foundation\Blender 3.1\3.1\scripts\addons\io_scene_fbx\export_fbx_bin.py", line 2909, in fbx_objects_elements fbx_data_mesh_elements(objects, me_obj, scene_data, done_meshes) File "C:\Program Files\Blender Foundation\Blender 3.1\3.1\scripts\addons\io_scene_fbx\export_fbx_bin.py", line 1177, in fbx_data_mesh_elements elem_data_single_int32_array(lay_uv, b"UVIndex", (uv2idx[uv_id] for uv_id in _uvtuples_gen(t_luv, t_lvidx))) File "C:\Program Files\Blender Foundation\Blender 3.1\3.1\scripts\addons\io_scene_fbx\fbx_utils.py", line 505, in elem_data_single_int32_array return _elem_data_single(elem, name, value, "add_int32_array") File "C:\Program Files\Blender Foundation\Blender 3.1\3.1\scripts\addons\io_scene_fbx\fbx_utils.py", line 452, in _elem_data_single getattr(sub_elem, func_name)(value) File "C:\Program Files\Blender Foundation\Blender 3.1\3.1\scripts\addons\io_scene_fbx\encode_bin.py", line 161, in add_int32_array data = array.array(data_types.ARRAY_INT32, data) File "C:\Program Files\Blender Foundation\Blender 3.1\3.1\scripts\addons\io_scene_fbx\export_fbx_bin.py", line 1177, in <genexpr> elem_data_single_int32_array(lay_uv, b"UVIndex", (uv2idx[uv_id] for uv_id in _uvtuples_gen(t_luv, t_lvidx))) KeyError: ((nan, nan), 0) location: <unknown location>:-1 ``` **Exact steps for others to reproduce the error** I only remembered that I imported an auto-mirror

Carol commented

2022-04-01 15:06:41 +02:00

Added subscriber: @HakunaMytata

Germano Cavalcante commented

2022-04-01 17:21:57 +02:00

Added subscriber: @mano-wii

Germano Cavalcante commented

2022-04-01 17:21:57 +02:00

The object has corrupted UVs.
Did this object come from some old file?
This was a common problem some time ago as some operator in Blender was corrupting the UVs.

You can run this code in the Blender console or in the text editor to "fix" the mesh.

import bpy
for me in bpy.data.meshes:
     me.validate()

Unfortunately unless there are clear instructions on how to reproduce it from scratch we cannot debug this any further.

Things that may cause mesh corruption: Importers, development versions of Blender, modeling tools.

The object has corrupted UVs. Did this object come from some old file? This was a common problem some time ago as some operator in Blender was corrupting the UVs. You can run this code in the Blender console or in the text editor to "fix" the mesh. ``` import bpy for me in bpy.data.meshes: me.validate() ``` Unfortunately unless there are clear instructions on how to reproduce it from scratch we cannot debug this any further. Things that may cause mesh corruption: Importers, development versions of Blender, modeling tools.

Germano Cavalcante commented

2022-04-01 17:22:06 +02:00

Closed as duplicate of #79775

Germano Cavalcante closed this issue

2022-04-01 17:22:06 +02:00

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Traceback error while exporting as fbx #96951