Pkd_add: not found when trying to install language package for pfSense 2.3.1

[limona21]

I followed this tutorial http://diskatel.narod.ru/pfsense/Localization-pfSense-2.pdf and I also found some post on the forums here with the lang package and .mo file that I translated. I just finished translating the .mo file to Slovenian language and I am trying to install pfsense_lang-1_0 package to integrate language option into pfSense and it gives me this error:```
pkd_add: not found

![Screen Shot 2016-06-08 at 18.43.56.png](/public/_imported_attachments_/1/Screen Shot 2016-06-08 at 18.43.56.png)
![Screen Shot 2016-06-08 at 18.43.56.png_thumb](/public/_imported_attachments_/1/Screen Shot 2016-06-08 at 18.43.56.png_thumb)
![Screen Shot 2016-06-08 at 18.42.19.png](/public/_imported_attachments_/1/Screen Shot 2016-06-08 at 18.42.19.png)
![Screen Shot 2016-06-08 at 18.42.19.png_thumb](/public/_imported_attachments_/1/Screen Shot 2016-06-08 at 18.42.19.png_thumb)