I've just updated RAD Studio 10.4.2 with the new LMD Docking Pack 2021.
I've installed the packages and then followed this with the source.
Both paths existing the in the IDE however when I compile my application it shows an error on line 461 in LMCClass.pas
TDataReceiverItem = class
Handler: TLMDOnReceiveData; // << Error here... Published field 'Handler' is not a class or interface type
If I remove the source from the library path the application compiles and runs. This is the same for both 32-bit and 64-bit version of my application and I've been through and checked that there are no old redundant paths from previous versions.
I'm assuming that there is a setting in the application's options that is causing this to fail?