The path of appeon_workarounds.pbl in Powerserver 2017 is a bit different from before. It is under the directory such as C:\inetpub\wwwroot\appeon\developTempFile\appeon_workarounds on the web site where you install the PowerServer Mobile.
These methods are located in the Appeon_Workarounds.pbl which should be located in the Appeon for PB (WEB) install folder (C:\Program Files (x86)\Appeon\Developer2016). For the PB 2017 Universal (which includes Appeon Mobile) Edition installation, the Appeon_Workarounds.pbl file should be located in the "C:\inetpub\wwwroot\appeon\developTempFile\appeon_workarounds" folder
Regards ... Chris
I have PB 2017 Universal installed on Windows7 machine, I found Appeon_Workarounds.pbl in several places under