FAQ: An error message saying that I need DBG version 2.20...

PhpED 4.5 can work with debugger modules 2.20.x only.
For your convenience, phped is shipped with debugger modules (server side) for different server platforms and all these modules can be found in phped\debugger\server subdirectory. For example if you have phped installed in c:\program files\nusphere\phped, you'd check c:\program files\nusphere\phped\debugger\server .
In order to install debugger module, please proceed with these instructions.