64bit compile error

[glira]

how to solve this error please,
shellcodeexec.obj : error LNK2001: unresolved external symbol __exec_payload
C:\Users\root\Downloads\windows\x64\Release\shellcodeexec.exe : fatal error LNK1120: 1 unresolved externals

[glira]

I solved the problem of compilation but the executable does not work 64bit, I'm using vs2012

[glira]

I believe that has to do with this error
First-chance exception at 0x000000013F2B11D8 in shellcodeexec.exe: 0xC0000005: Access violation reading location 0xFFFFFFFFFFFFFFFF.
this occurs in the .asm
call QWORD PTR[rax]

[codewatchorg]

@glira did you ever figure this out? I can compile it but can't get the x64bit version to work with any payload.