How to install this library in PIO

[Mal-Oldis]

I have been using this library without issue in Arduino framework (esp32) however until now it seemed impossible to get this library for PIO.
It seems that the library has installed but I am issues with the compiler. I will attach a screen shot,that I hope helps.
compiler error..pdf
I hope this makes sense to some one. Many thanks,
Mal

[trullock]

lib_deps =
	https://github.com/yubox-node-org/ESPAsyncWebServer.git