: Lumion relies heavily on specific Microsoft Visual C++ packages. If these become corrupted by other applications, the startup routine fails.
Ignore it. Do not reinstall. Wait for the next Lumion patch.
Are you using any ? Share public link
The "Channel" referred to in the error is a specific data pathway the software uses to load essential assets and libraries. When this isn't found, Lumion skips its "load routine," which essentially means it stops trying to open the program to prevent a crash.
If you are using an older version of Lumion 10, a with a Windows update can trigger this error. You can fix this by relocating the problematic file: : Lumion relies heavily on specific Microsoft Visual
If you are a 3D architect, landscape designer, or visualization artist, there is nothing more frustrating than double-clicking the Lumion icon only to be met with a cryptic error message instead of your render workspace. Among the most notorious of these is the error.
Cut ( Ctrl + X ) this file and paste it ( Ctrl + V ) directly into the where Lumion.exe resides: C:\Program Files\Lumion 10.x\ Relaunch the program. 4. Repair Microsoft Visual C++ Redistributables
🎨 If you see this, switch to Performance Mode → reload scene → switch back to Quality Mode . Channels often rebuild themselves like lazy rendering ninjas.
For users on Windows 10 (v2004) or later, a conflict exists between Lumion and Windows versions of this file. onnxruntime.dll file from the folder in your installation directory to the root folder Lumion.exe is located. Repair Microsoft Visual C++ Redistributables Do not reinstall
Follow these steps in order. Do not skip the preliminary checks.
When prompted, select the option instead of a clean install.
Windows Defender is the most common culprit behind this error. It often targets files inside the C:\Program Files\Lumion\Channels\ directory.
Ironically, this error often appears on —not low-end PCs. Why? Because high-end users tend to: Share public link The "Channel" referred to in
Third-party antivirus software (like Avast, Norton, McAfee, Bitdefender, or 360 Total Security) is often more aggressive than Windows Defender. Users on the Lumion forum have reported success by using their antivirus's "Restore" function to recover quarantined files and adding an for the entire Lumion installation folder.
Verify that you have at least 30 GB of free space on your C: drive for temporary cache files required during the loading process.
Sometimes the error manifests in slightly different ways. Here's how to handle them.