1. Lumion 8.3 and newer:

Technical support staff members may ask you for a Lumion Error Log file from time to time when working to resolve a hardware or Lumion compatibility issue.

Please follow the instructions below if you have been asked to provide this file:

1.1: Click on the Settings button, turn Error Logging on and restart Lumion:

1.2: Run Lumion and perform the tasks to replicate the issue.

1.3: Click on the Settings button followed by the Save error log file button. Enter a file name and press Enter: 

1.4: Attach the file to a post/topic at the Lumion Support Center - or send the log file to us via email:

2. Lumion 8.0 and older:

2.1: Close Lumion.

2.2: In C:\Users\YourUserName\AppData\Roaming\Quest3D, open the most recent folder install for your Lumion version.

Example: "Lumion 8.3_(Numbers)":

2.3: Open the WriteErrorLog file with Microsoft Notepad or other text editor.

2.4: Change the "No" to a "Yes" (without quotations) and save the file.

2.5: Run Lumion and perform the tasks to replicate the issue.

2.6: In the folder C:\Users\YourUserName\AppData\Roaming\Quest3D, locate the file error.log. If Windows Explorer does not show file extensions, the file is just called error:

2.7: Attach the file to a post/topic at the Lumion Support Center - or send the log file to us via email: