I was following this video: https://www.youtube.com/watch?v=3NTXFUxcKPc at the end it show how to do basic stuff with Radare2. When i try to set a break point with:

db 0x004005bd

where '0x004005bd' is the first address of the main function that just does:

push rbp

but after i run the db command it tells me:

Cannot place a breakpoint on 0x004005bd unmapped memory. See dbg.bpinmaps

I understand what its telling me, but how do i fix it ?

Thanks and sorry for the very noobish question (also, sorry for my english).

I was following this video at the end it shows how to do basic stuff with Radare2 (r2).

When I try to set a break point with:

db 0x004005bd

Where 0x004005bd is the first address of the main function that just does:

push rbp

But after I run the db command it tells me:

Cannot place a breakpoint on 0x004005bd unmapped memory. See dbg.bpinmaps

I understand what it says, but how do I fix it ?