I am trying to get the JCL/JVCL to install in Delphi 10.3, previously I could use the getit package manager within Delphi to download it, but now it does not appear to be on the list? I have tried doing a manual download on the JVCL but when I try to install this I get a page of error messages from the compiler and nothing happens.
Thanks Phil
@rudyvelthuis answer solved it. Doesn't want to work from within Delphi at present.
To get it to work with Rio, use git (windows version) and clone and follow instructions. Only thing to add is if you have a new install of windows 10 you will need to allow it to download the older .net framework as well.