how to set minermemory ? i try command -minermemory=2 -genproclimit=4 on debug windows not work " methode not found ( code -32601 ) "

It's command line argument. For example you can run it like this:
>HOdlcoin-qt.exe -gen=1 -minermemory=5 -genproclimit=19
This sets mining on using 5 GB memory with 19 CPU threads.