"Add-on Error" during upload: AttributeError: Calling operator "bpy.ops.export_scene.fbx" error, could not be found

[TheoriginalNeko]

When I press upload it says in Upload Status Add-on error

[Nightriff]

To get more details about this error, can you share the console output during the upload attempt?

• On Windows, in Blender go to Window > Toggle System Console to see the console.
• On Mac OS, you'll need to start Blender from a terminal window.

[Autonvilkku]

FBX export starting... 'C:\\Users\\antti\\AppData\\Local\\Temp\\tmpl7tpebc7\\pistol.fbx'
export finished in 0.0000 sec.
Traceback (most recent call last):
  File "C:\Users\antti\AppData\Roaming\Blender Foundation\Blender\4.2\scripts\addons\roblox-blender-plugin\lib\upload_operator.py", line 243, in upload_task_complete
    operation = task.result()
                ^^^^^^^^^^^^^
  File "C:\Users\antti\AppData\Roaming\Blender Foundation\Blender\4.2\scripts\addons\roblox-blender-plugin\lib\upload_operator.py", line 190, in upload_task
    await oauth2_client.refresh_login_if_needed()
  File "C:\Users\antti\AppData\Roaming\Blender Foundation\Blender\4.2\scripts\addons\roblox-blender-plugin\lib\oauth2_client.py", line 245, in refresh_login_if_needed
    new_token_data = await self.__refresh_tokens(refresh_token)
                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:\Users\antti\AppData\Roaming\Blender Foundation\Blender\4.2\scripts\addons\roblox-blender-plugin\lib\oauth2_client.py", line 322, in __refresh_tokens
    raise exception
  File "C:\Users\antti\AppData\Roaming\Blender Foundation\Blender\4.2\scripts\addons\roblox-blender-plugin\lib\oauth2_client.py", line 316, in __refresh_tokens
    response.raise_for_status()  # Raises ClientResponseError or other ClientError
    ^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:\Users\antti\AppData\Roaming\Blender Foundation\Blender\4.2\scripts\addons\roblox-blender-plugin\dependencies_public\aiohttp\client_reqrep.py", line 1011, in raise_for_status
    raise ClientResponseError(
aiohttp.client_exceptions.ClientResponseError: 400, message='Token has been revoked', url=URL('https://apis.roblox.com/oauth/v1/token')

this is the console

[TheoriginalNeko]

@Nightriff and @Autonvilkku Here is the Terminal stuff:

Read prefs: "C:\Users\Gamergodyt\AppData\Roaming\Blender Foundation\Blender\4.1\config\userpref.blend"
Registered Power Sequencer with 72 modules
Reloading external rigs...
Reloading external metarigs...
register_class(...):
Info: Registering panel class: 'TEXTURE_PT_colors', bl_idname 'TEXTURE_PT_colors' has been registered before, unregistering previous
register_class(...):
Info: Registering operator class: 'OBJECT_OT_AlignOperator', bl_idname 'object.align' has been registered before, unregistering previous

To use POV centric workspaces you can set POV render option
and save it with File > Defaults > Save Startup File menu
Read blend: "C:\Users\Gamergodyt\OneDrive\Documents\untitled.blend"
Traceback (most recent call last):
File "C:\Users\Gamergodyt\AppData\Roaming\Blender Foundation\Blender\4.1\scripts\addons\roblox-blender-plugin\lib\oauth2_login_operators.py", line 81, in on_refresh_complete
task.result()
File "C:\Users\Gamergodyt\AppData\Roaming\Blender Foundation\Blender\4.1\scripts\addons\roblox-blender-plugin\lib\oauth2_client.py", line 245, in refresh_login_if_needed
new_token_data = await self.__refresh_tokens(refresh_token)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Users\Gamergodyt\AppData\Roaming\Blender Foundation\Blender\4.1\scripts\addons\roblox-blender-plugin\lib\oauth2_client.py", line 322, in __refresh_tokens
raise exception
File "C:\Users\Gamergodyt\AppData\Roaming\Blender Foundation\Blender\4.1\scripts\addons\roblox-blender-plugin\lib\oauth2_client.py", line 316, in __refresh_tokens
response.raise_for_status() # Raises ClientResponseError or other ClientError
^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Users\Gamergodyt\AppData\Roaming\Blender Foundation\Blender\4.1\scripts\addons\roblox-blender-plugin\dependencies_public\aiohttp\client_reqrep.py", line 1011, in raise_for_status
raise ClientResponseError(
aiohttp.client_exceptions.ClientResponseError: 400, message='Token has been revoked', url=URL('https://apis.roblox.com/oauth/v1/token')
Traceback (most recent call last):
File "C:\Users\Gamergodyt\AppData\Roaming\Blender Foundation\Blender\4.1\scripts\addons\roblox-blender-plugin\lib\upload_operator.py", line 156, in upload
export_fbx(scene, view_layer, target_object, exported_file_path, add_on_preferences)
File "C:\Users\Gamergodyt\AppData\Roaming\Blender Foundation\Blender\4.1\scripts\addons\roblox-blender-plugin\lib\export_fbx.py", line 61, in export_fbx
bpy.ops.export_scene.fbx(
File "C:\Program Files\Blender Foundation\Blender 4.1\4.1\scripts\modules\bpy\ops.py", line 109, in call
ret = _op_call(self.idname_py(), kw)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
AttributeError: Calling operator "bpy.ops.export_scene.fbx" error, could not be found

[Nightriff]

The Token has been revoked error is related to login; the add-on goes to refresh your access token but Roblox's server says the refresh token was revoked, which happens after a fixed amount of time or when logging out. When encountering that error, the add-on should be re-prompting you to log in. Let me know if that didn't happen. In any case, you should be able to resolve that by logging out of the plugin and logging back in.

But I see a second error, bpy.ops.export_scene.fbx operator could not be found. That seems unusual, and is likely the cause of the "Add-on error" message you're seeing. I'm unfortunately not able to reproduce this using Blender 4.1.1 (I see you're also on 4.1).

Would you be able to take a screen recording of the upload process? I'm curious if there's anything unusual about your blender layout causing a wrong context to exist where the export_scene.fbx operator isn't available.

[TheoriginalNeko]

I can't take a screen recording can you tell me more about "blender layout causing a wrong context to exist where the export_scene.fbx operator isn't available." Because that might be somthing thats causing it.

[TheoriginalNeko]

Also I've tried to log out and log bag in before but it didn't do anything.

[TheoriginalNeko]

I fixed it!

[Nightriff]

@TheoriginalNeko I'm glad the issue was resolved for you. Did you figure out what fixed it, so that others who are experiencing this can also learn?

[Nightriff]

Closing this since no further information was provided. Feel free to comment if there's more to add.

[PlasmaShield27]

Im having trouble with this as well I was excited to see this only to discover that it never answered my question

[Nightriff]

@PlasmaShield27 Thanks for adding your voice. To help diagnose, can you share the output from the console during the upload attempt?

• On Windows, in Blender go to Window > Toggle System Console to see the console.
• On Mac OS, you'll need to start Blender from a terminal window.

The more data points we have here, hopefully the closer we get to figuring out the cause. Re-opening this issue.

[PlasmaShield27]

ok I'll do that

Read blend: "C:\Users\charl\OneDrive\Documents\Sword 1.blend"

FBX export starting... 'C:\Users\charl\AppData\Local\Temp\tmpm4nqemr6\Eye\Gem.fbx'
Traceback (most recent call last):
File "C:\Program Files\WindowsApps\BlenderFoundation.Blender_4.2.2.0_x64__ppwjx1n5r4v9t\Blender\4.2\scripts\addons_core\io_scene_fbx_init_.py", line 596, in execute
return export_fbx_bin.save(self, context, **keywords)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Program Files\WindowsApps\BlenderFoundation.Blender_4.2.2.0_x64__ppwjx1n5r4v9t\Blender\4.2\scripts\addons_core\io_scene_fbx\export_fbx_bin.py", line 3647, in save
ret = save_single(operator, context.scene, depsgraph, filepath, **kwargs_mod)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Program Files\WindowsApps\BlenderFoundation.Blender_4.2.2.0_x64__ppwjx1n5r4v9t\Blender\4.2\scripts\addons_core\io_scene_fbx\export_fbx_bin.py", line 3531, in save_single
encode_bin.write(filepath, root, FBX_VERSION)
File "C:\Program Files\WindowsApps\BlenderFoundation.Blender_4.2.2.0_x64__ppwjx1n5r4v9t\Blender\4.2\scripts\addons_core\io_scene_fbx\encode_bin.py", line 402, in write
with open(fn, 'wb') as f:
^^^^^^^^^^^^^^
FileNotFoundError: [Errno 2] No such file or directory: 'C:\Users\charl\AppData\Local\Temp\tmpm4nqemr6\Eye\Gem.fbx'
Error: Python: Traceback (most recent call last):
File "C:\Program Files\WindowsApps\BlenderFoundation.Blender_4.2.2.0_x64__ppwjx1n5r4v9t\Blender\4.2\scripts\addons_core\io_scene_fbx_init_.py", line 596, in execute
return export_fbx_bin.save(self, context, **keywords)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Program Files\WindowsApps\BlenderFoundation.Blender_4.2.2.0_x64__ppwjx1n5r4v9t\Blender\4.2\scripts\addons_core\io_scene_fbx\export_fbx_bin.py", line 3647, in save
ret = save_single(operator, context.scene, depsgraph, filepath, **kwargs_mod)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Program Files\WindowsApps\BlenderFoundation.Blender_4.2.2.0_x64__ppwjx1n5r4v9t\Blender\4.2\scripts\addons_core\io_scene_fbx\export_fbx_bin.py", line 3531, in save_single
encode_bin.write(filepath, root, FBX_VERSION)
File "C:\Program Files\WindowsApps\BlenderFoundation.Blender_4.2.2.0_x64__ppwjx1n5r4v9t\BlendTraceback (most recent call last):
File "C:\Users\charl\AppData\Roaming\Blender Foundation\Blender\4.2\scripts\addons\roblox-blender-plugin-main\lib\upload_operator.py", line 156, in upload
export_fbx(scene, view_layer, target_object, exported_file_path, add_on_preferences)
File "C:\Users\charl\AppData\Roaming\Blender Foundation\Blender\4.2\scripts\addons\roblox-blender-plugin-main\lib\export_fbx.py", line 61, in export_fbx
bpy.ops.export_scene.fbx(
File "C:\Program Files\WindowsApps\BlenderFoundation.Blender_4.2.2.0_x64__ppwjx1n5r4v9t\Blender\4.2\scripts\modules\bpy\ops.py", line 109, in call
ret = op_call(self.idname_py(), kw)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
RuntimeError: Error: Python: Traceback (most recent call last):
File "C:\Program Files\WindowsApps\BlenderFoundation.Blender_4.2.2.0_x64__ppwjx1n5r4v9t\Blender\4.2\scripts\addons_core\io_scene_fbx_init.py", line 596, in execute
return export_fbx_bin.save(self, context, **keywords)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Program Files\WindowsApps\BlenderFoundation.Blender_4.2.2.0_x64__ppwjx1n5r4v9t\Blender\4.2\scripts\addons_core\io_scene_fbx\export_fbx_bin.py", line 3647, in save
ret = save_single(operator, context.scene, depsgraph, filepath, **kwargs_mod)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Program Files\WindowsApps\BlenderFoundation.Blender_4.2.2.0_x64__ppwjx1n5r4v9t\Blender\4.2\scripts\addons_core\io_scene_fbx\export_fbx_bin.py", line 3531, in save_single
encode_bin.write(filepath, root, FBX_VERSION)
File "C:\Program Files\WindowsApps\BlenderFoundation.Blender_4.2.2.0_x64__ppwjx1n5r4v9t\Blender\4.2\scripts\addons_core\io_scene_fbx\encode_bin.py", line 402, in write
with open(fn, 'wb') as f:
^^^^^^^^^^^^^^
FileNotFoundError: [Errno 2] No such file or directory: 'C:\Users\charl\AppData\Local\Temp\tmpm4nqemr6\Eye\Gem.fbx'
Location: C:\Program Files\WindowsApps\BlenderFoundation.Blender_4.2.2.0_x64__ppwjx1n5r4v9t\Blender\4.2\scripts\modules\bpy\ops.py:109

... truncated
FBX export starting... 'C:\Users\charl\AppData\Local\Temp\tmpf0_a5hcq\Eye\Gem.fbx'
Traceback (most recent call last):
File "C:\Program Files\WindowsApps\BlenderFoundation.Blender_4.2.2.0_x64__ppwjx1n5r4v9t\Blender\4.2\scripts\addons_core\io_scene_fbx_init_.py", line 596, in execute
return export_fbx_bin.save(self, context, **keywords)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Program Files\WindowsApps\BlenderFoundation.Blender_4.2.2.0_x64__ppwjx1n5r4v9t\Blender\4.2\scripts\addons_core\io_scene_fbx\export_fbx_bin.py", line 3647, in save
ret = save_single(operator, context.scene, depsgraph, filepath, **kwargs_mod)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Program Files\WindowsApps\BlenderFoundation.Blender_4.2.2.0_x64__ppwjx1n5r4v9t\Blender\4.2\scripts\addons_core\io_scene_fbx\export_fbx_bin.py", line 3531, in save_single
encode_bin.write(filepath, root, FBX_VERSION)
File "C:\Program Files\WindowsApps\BlenderFoundation.Blender_4.2.2.0_x64__ppwjx1n5r4v9t\Blender\4.2\scripts\addons_core\io_scene_fbx\encode_bin.py", line 402, in write
with open(fn, 'wb') as f:
^^^^^^^^^^^^^^
FileNotFoundError: [Errno 2] No such file or directory: 'C:\Users\charl\AppData\Local\Temp\tmpf0_a5hcq\Eye\Gem.fbx'
Error: Python: Traceback (most recent call last):
File "C:\Program Files\WindowsApps\BlenderFoundation.Blender_4.2.2.0_x64__ppwjx1n5r4v9t\Blender\4.2\scripts\addons_core\io_scene_fbx_init_.py", line 596, in execute
return export_fbx_bin.save(self, context, **keywords)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Program Files\WindowsApps\BlenderFoundation.Blender_4.2.2.0_x64__ppwjx1n5r4v9t\Blender\4.2\scripts\addons_core\io_scene_fbx\export_fbx_bin.py", line 3647, in save
ret = save_single(operator, context.scene, depsgraph, filepath, **kwargs_mod)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Program Files\WindowsApps\BlenderFoundation.Blender_4.2.2.0_x64__ppwjx1n5r4v9t\Blender\4.2\scripts\addons_core\io_scene_fbx\export_fbx_bin.py", line 3531, in save_single
encode_bin.write(filepath, root, FBX_VERSION)
File "C:\Program Files\WindowsApps\BlenderFoundation.Blender_4.2.2.0_x64__ppwjx1n5r4v9t\BlendTraceback (most recent call last):
File "C:\Users\charl\AppData\Roaming\Blender Foundation\Blender\4.2\scripts\addons\roblox-blender-plugin-main\lib\upload_operator.py", line 156, in upload
export_fbx(scene, view_layer, target_object, exported_file_path, add_on_preferences)
File "C:\Users\charl\AppData\Roaming\Blender Foundation\Blender\4.2\scripts\addons\roblox-blender-plugin-main\lib\export_fbx.py", line 61, in export_fbx
bpy.ops.export_scene.fbx(
File "C:\Program Files\WindowsApps\BlenderFoundation.Blender_4.2.2.0_x64__ppwjx1n5r4v9t\Blender\4.2\scripts\modules\bpy\ops.py", line 109, in call
ret = op_call(self.idname_py(), kw)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
RuntimeError: Error: Python: Traceback (most recent call last):
File "C:\Program Files\WindowsApps\BlenderFoundation.Blender_4.2.2.0_x64__ppwjx1n5r4v9t\Blender\4.2\scripts\addons_core\io_scene_fbx_init.py", line 596, in execute
return export_fbx_bin.save(self, context, **keywords)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Program Files\WindowsApps\BlenderFoundation.Blender_4.2.2.0_x64__ppwjx1n5r4v9t\Blender\4.2\scripts\addons_core\io_scene_fbx\export_fbx_bin.py", line 3647, in save
ret = save_single(operator, context.scene, depsgraph, filepath, **kwargs_mod)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Program Files\WindowsApps\BlenderFoundation.Blender_4.2.2.0_x64__ppwjx1n5r4v9t\Blender\4.2\scripts\addons_core\io_scene_fbx\export_fbx_bin.py", line 3531, in save_single
encode_bin.write(filepath, root, FBX_VERSION)
File "C:\Program Files\WindowsApps\BlenderFoundation.Blender_4.2.2.0_x64__ppwjx1n5r4v9t\Blender\4.2\scripts\addons_core\io_scene_fbx\encode_bin.py", line 402, in write
with open(fn, 'wb') as f:
^^^^^^^^^^^^^^
FileNotFoundError: [Errno 2] No such file or directory: 'C:\Users\charl\AppData\Local\Temp\tmpf0_a5hcq\Eye\Gem.fbx'
Location: C:\Program Files\WindowsApps\BlenderFoundation.Blender_4.2.2.0_x64__ppwjx1n5r4v9t\Blender\4.2\scripts\modules\bpy\ops.py:109

[PlasmaShield27]

sorry it's a lot and I don't know a lot about coding in python

I do see a file not found error and a runtime error if that helps any?
I'm usually in school until 4:00 so I'll be able to respond around 5:30pm-9:00pm US est on weekdays and all day on weekends

[PlasmaShield27]

FYI i tried reinstalling the add on

[Nightriff]

Thanks for the output @PlasmaShield27

I think in your case, the problem is due to the slash / in the object name causing a problem with the export because it thinks the Eye is a folder on the file system rather than part of the file name.

If you rename your object to not have a slash in it, it should export with no problem.

I'll create an issue to sanitize the file name to avoid exporting to the file system with a bad file name.

[Nightriff]

Since Add-on Error can be caused by multiple things, I'm going to start separating issues based on the cause of the Add-on Error to avoid this issue becoming a monolith.

Adjusted the title of this issue to reflect the original error message for this post.

Closing again since this issue does not have enough information to diagnose and I can't reproduce the error.

Feel free to comment if you have something further to add related to AttributeError: Calling operator "bpy.ops.export_scene.fbx" error, could not be found

If you have an Add-on Error message but a different error reason in the output, please open a new issue.

[PlasmaShield27]

Thank you it worked!