Different logs

There are several components that make up your MiddleVR application, and each one has a different log file:

- MiddleVR logs

- Unity logs

- MiddleVR license logs

MiddleVR logs

Being able to read the logs of MiddleVR will greatly help troubleshoot a lot of the issues you might have.

The easiest way to find the logs is to click on "Open in Explorer" in MiddleVR Config 2:


By default, the logs are in %tmp%/MiddleVR.

Using the file explorer: simply type in the address bar: %tmp%/MiddleVR



If you have modified the Log Folder option in MiddleVR Config, the logs will be in the folder you specified.


Unity logs

Unity editor

You might also need to have a look at the logs of the Unity Editor.

  • Windows 10, 8, 7 and Vista:
    • C:\Users\YOUR_USERNAME\AppData\Local\Unity\Editor
  • Windows XP:
    • C:\Documents and Settings\YOUR_USERNAME\Local Settings\Application Data\Unity\Editor.

Unity player

If you specify a Log Folder in MiddleVR config, the Unity logs will stored there too.

Otherwise, by default since Unity 2017.2, the logs are store here:


(Where CompanyName and ProductName are defined in your "Project Settings > Player" settings.)

For older Unity versions:

You can find the logs of a Unity player in its “_data” folder.If your application is called “Lawnmower.exe“, you fill find its logs in the “Lawnmower_data” folder, named “output_log.txt“.

Note that to enable Unity player logs, you have to make sure the option is enabled via the Player Settings > Resolution and Presentation > Use Player Log.

License logs

The license logs is automatically created in the same folder as the other MiddleVR logs. It is named: MiddleVR_License_Log.txt

You can set the LMX_EXTENDEDLOG environment variable to change this behaviour.
For example: LMX_EXTENDEDLOG=C:\temp\client.log


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