# This.driver is not a function **URL:** \ **Category:** Devices\ **Created:** [May 14, 2023, 6:09pm UTC](https://community.homey.app/t/this-driver-is-not-a-function/80523 "2023-05-14T18:09:32Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![Hanninen](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/hanninen/32/76357_2.png) [@Hanninen](https://community.homey.app/u/Hanninen)\ **Post date:** [May 14, 2023, 6:09pm UTC](https://community.homey.app/t/this-driver-is-not-a-function/80523/1 "2023-05-14T18:09:32Z")
I have a Philio PSR04 and used the philio app to include it to my homey early 2023. The inclusion works fine. I get a error message when I push the icon. “This.driver is not a function. No flowes with the devices seams to work. What can I do to make it work. ---
**Author:** ![Caseda](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/caseda/32/138695_2.png) [@Caseda](https://community.homey.app/u/Caseda)\ **Post date:** [May 14, 2023, 6:28pm UTC](https://community.homey.app/t/this-driver-is-not-a-function/80523/2 "2023-05-14T18:28:57Z")
The only thing you can do is contact the developer as that is an app issue. Curious why no one mentioned it before as there are 2 drivers (devices, PSR04 & PSR07) that have the same mistake. (`this.driver().FLOWCARD` instead of `this.driver.FLOWCARD`) ---
**Author:** ![Hanninen](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/hanninen/32/76357_2.png) [@Hanninen](https://community.homey.app/u/Hanninen)\ **Post date:** [May 15, 2023, 5:56am UTC](https://community.homey.app/t/this-driver-is-not-a-function/80523/3 "2023-05-15T05:56:59Z")
Hello @johan_bendz. I seams like you are the developer. I really appreciate your work with Homey apps. Can you solve the problem with Philio PSR04. Thank you very much in advance. Do you need any information from me?