I am trying to run the firmware update on my sensorProbe, but am receiving the error message ?Incorrect Zip File Version?. What could be the problem?

AKCP AdministratorsensorProbe Series, Support

You are browsing to the compressed file that contains the IPSet, firmware file (compressed) and this text file. You need to browse to the compressed file that has only the firmware update code.

AKCP AdministratorI am trying to run the firmware update on my sensorProbe, but am receiving the error message ?Incorrect Zip File Version?. What could be the problem?