Participant

Blender 4.4.0 - Substance add-on 2.2.0 - Can't Install Integration Tools

Forum|Forum|11 months ago
March 25, 2025
25 replies
4037 views

I can't get the Integration Tools to install. When clicking on the Install from disk button i get this error on the screen and in the console:

Error: Python: RuntimeError: could not create instance of SUBSTANCE_OT_install_tools to call callback function 'invoke'

No window appears to locate the file. I'm on Windows 23H2, verified WMIC is installed and the PATH is set in the system variables. Was running Python 3.12, upgraded to 3.13 with the same error. Uninstalled Blender, rebooted, reinstalled, no change. No sure what else to do.

Show previous replies

J

jonathan_5546

Participant

Hi,
for me the Plugin Still doesnt work, i use blender 4.4.3, Substance Add-On and Integration tool is version 2.3.0.
The Installation works, but Loading a Substance results in the Error: WMIC Process is not installed.

System is Windows 11.

Best Regards

B

Bret5CFA

Inspiring

Hi All,
I can confirm that the latest release of Substance3D for blender V 2.3.0 and Intergration tools V 2.30 work with Blender 4.4.0
A couple of notes.
I'm working on Windows 11
If you have the previous version of Substance for Blender V 2.2.1 ( that didn't work) delete this from your add-on first.
I also had to manually delete the Substance Intergration tools from (Your Drive):\Users\(Your Username)\AppData\Roaming\Adobe.
accessed by entering %appdata% in the search bar.
I had to restart my machine before I could delete this folder.
Install the Substance3DBlender 2.3.0 through addons as normal, then install the intergration tools 2.3.0 through the plugin settings selecting install from .zip.
Save Preferences

Restart Blender

S

Shwetha23063442qtvs

Community Manager

Hi everyone, just a quick update:
We're currently in the release stage to make the add-on compatible with the latest version of Blender. We'll let you know as soon as it's publicly available.

A

Anthony248354041pr3

Participant

did work as well

try what @cjbmaille says

in toolkit.py replace
def __init__(self):
self.filepath = ""

with
def __init__(self, *args, **kwargs):
super().__init__(*args, **kwargs)
self.filepath = ""

and " add" that in sbsar.py

showing the same error like everyone else

C

cjbmaille

Participant

There is a significant change in the Blender 4.4 Python API, see more here: https://developer.blender.org/docs/release_notes/4.4/python_api/#blender-based-python-classes-construction

Essentially that means that 2 files need to be changed in the Substance3DinBlender.zip file (v2.2):

- ops/toolkit.py

- ops/sbsar.py

Best do that with Copilot or the like.

Basically, replace both occurrences in those two files of:

def __init__(self😞

self.filepath = ''

with:

def __init__(self, *args, **kwargs😞

super().__init__(*args, **kwargs)

self.filepath = ''

When done, re-zip the Substance3DinBlender folder, reinstall it in Blender and then you will be able to install the Substance Integration tool as well.

It worked for me and I am able to use the Substance addon in Blender 4.4 as intended.

S

Shwetha23063442qtvs

Community Manager

Hi everyone,

We are actively working on a fix and we’ll share an update here as soon as the new release is goes out, which should be very soon. Thanks for your patience!

S

shizana

Participant

I looked around and it seems like this issue has happened on previous blender 4 versions and adobe has some fix in beta. I requested to get into beta to test it but got no reply. I think it's better to look into alternatives at this point if you need this for a blender workflow