1534 | Promethean Support

1534 – “Unknown variable” ActivDriver error on Mac OS X 10.11 (El Capitan)

Applicable to:

  • ActivDriver


  • Mac


The following error message may be displayed when installing ActivDriver 5.12.17 without uninstalling the previous version of ActivDriver.
User-added image
To resolve this issue, download and install the latest version of ActivDriver from the ActivDriver support page.

If you still need technical support, please contact us.