zap2epg addon won't install

Hi,

I just install Libreelec 8.2.5 on an Asus Chromebox. I then installed TVHeadend 4.2. Then I tried to install script.module.zap2epg-1.3.0.zip via usb to grab epg data but got an error saying the following:

Failed to install Add-on from zip file

The dependency on script.module.dateutil version 2.4.2 could not be satisfied.

Can anybody please tell me what I need to do to install script.module.zap2epg?

Thanks

Nevermind, just realized I installed the old version of Libreelec. Once I installed version 9.1.501 I was able to install zap2epg.