The error message "Channel not found in installation skipping load routine" typically indicates that critical startup files, specifically DLL files within the Lumion installation directory, are missing, quarantined by security software, or corrupted. This occurs most frequently in Lumion 10 when Windows updates conflict with specific library files like onnxruntime.dll. Common Causes of the Error
Antivirus Quarantining: Windows Security or third-party antivirus software often misidentifies Lumion’s "channel" files as threats and removes them from the installation folder.
Windows Update Conflicts: Updates like the Windows 10 May 2020 Release (v2004) can cause Lumion to fail because the OS and the software both try to load different versions of the same library simultaneously.
Insufficient Permissions: Running the software or installer without administrative rights can prevent Lumion from accessing or writing necessary "channel" configurations.
Missing System Components: Corrupted or outdated Microsoft Visual C++ Redistributables can lead to startup routine failures. Step-by-Step Fixes 1. Restore Files from Windows Security
If the files were moved to quarantine, they must be restored and then excluded from future scans.
Open Windows Security and navigate to Virus & threat protection > Protection history.
Filter for Quarantined items and locate any entries related to Lumion. Select the item, go to Actions, and click Restore.
To prevent a recurrence, go to Manage settings > Exclusions and add the Lumion installation folder (typically C:\Program Files\Lumion [version]\channels) to the exclusion list. 2. Resolve onnxruntime.dll Conflicts (Lumion 10 Users) The error message "Channel not found in installation
For those experiencing this after a Windows update on versions 10.0 to 10.3.2, a manual file move is required. Close Lumion entirely using the Task Manager if necessary.
Navigate to the 3rd folder within your Lumion installation directory (e.g., C:\Program Files\Lumion 10.x\3rd).
Locate the file named onnxruntime.dll and move it to the root folder where Lumion.exe is located (the main folder above 3rd). Restart Lumion. 3. Repair Visual C++ Redistributables
Corrupted system libraries can cause "skipping load routine" errors.
Go to your Lumion installation folder and find the Various\Redist subfolder.
Right-click VC_redist.x64.exe and select Run as Administrator.
Select the Repair option if available; otherwise, reinstall the component. Reboot your computer and try launching Lumion again. 4. Run as Administrator
Ensure Lumion has full access to its own installation files. Right-click the Lumion desktop shortcut or Lumion.exe. Select Run as administrator. Why "Skipping Load Routine Free" Happens on Cracked
Alternatively, set this permanently by going to Properties > Compatibility and checking Run this program as an administrator. Hardware and System Readiness
If the error persists, ensure your system meets the baseline requirements for Lumion to function without crashing during the load routine. Component Minimum Requirement Recommended Graphics Card 6 GB VRAM (GTX 1060 equivalent) 8-12 GB VRAM System RAM Disk Space 30 GB free on C: drive 50 GB+ free on NVMe SSD OS Windows 10/11 64-bit (v2004+) Latest Windows 11
Lumion System Requirements (Archivinci) | Lumion Official Start-up Troubleshooting How do you resolve start-up problems? - Knowledge Base
"Channel not found in installation skipping load routine" typically occurs because your antivirus or Windows Security has quarantined a critical Lumion file, often command_d.dll StringOperator.dll , mistaking it for a threat. Quick Fix Steps Restore Quarantined Files Windows Security (or your third-party antivirus). Virus & threat protection Protection history
Find the recently blocked item related to Lumion (look for paths containing Lumion\Channels\System Add an Exclusion In Windows Security, go to Virus & threat protection settings Manage settings Exclusions Add or remove exclusions and select your main Lumion installation folder (e.g., C:\Program Files\Lumion [Version] Run as Administrator Right-click the Lumion shortcut on your desktop and select Run as administrator
to ensure it has the necessary permissions to load its modules. Specific Fix for Lumion 10 users If you are on version 10.0 to 10.3.2
, this error can be caused by a conflict with a Windows 10 update. Go to the Lumion installation folder and find the subfolder. Locate the file onnxruntime.dll this file from the folder directly into the root Lumion folder Lumion.exe is located). Additional Troubleshooting VC++ Redistributables : If the above fails, try repairing the Microsoft Visual C++ Redistributable (2015-2022) found in the folder of your installation directory. System Requirements
: Ensure your PC meets the minimum requirements, specifically regarding VRAM (at least 6GB) and a dedicated graphics card. if any specific files are still missing from your installation folder? How do you resolve start-up problems? - Knowledge Base You will likely never fix this error
This article is designed to be a troubleshooting guide and knowledge base for architects, 3D artists, and designers who encounter this technical roadblock.
Let's address the elephant in the room. A massive number of searches for this error come from users running cracked or patched versions of Lumion.
If you are using a crack, keygen, or "loader":
.dll patcher. If the patcher fails (e.g., after a Windows Update), Lumion tries to free memory that the crack has locked, resulting in this loop.The only fix for cracked users: Purchase a legitimate license and install the official build. Official builds never throw random "channel not found" errors.
If you have reinstalled twice and still see "skipping load routine free," the issue is likely hardware or BIOS related.
In Lumion, a "channel" typically refers to:
ReflectionChannel, GIChannel).To ensure you never see "Lumion channel not found in installation skipping load routine free" again, complete this checklist:
Lumion stores your imported models, materials, and custom context in Documents\Lumion [Version]\Library. If this folder contains a corrupt *.Lib file (perhaps due to a power outage during an import), Lumion’s loader chokes on the channel sequence.