VC compilation problems

Link: Warning lnk4075: Ignoring/editandcontinue due to/Incremental: no specification
Libcd. Lib (crt0dat. OBJ): Error lnk2005: _ exit already defined in msvcrt. Lib (msvcrt. dll)
Libcd. Lib (crt0dat. OBJ): Error lnk2005: _ exit already defined in msvcrt. Lib (msvcrt. dll)
Libcd. Lib (winxfltr. OBJ): Error lnk2005: _ xcptfilter already defined in msvcrt. Lib (msvcrt. dll)
Libcd. Lib (crt0init. OBJ): Error lnk2005: ___ xc_z already defined in msvcrt. Lib (cinitexe. OBJ)
Libcd. Lib (crt0init. OBJ): Error lnk2005: ___ xc_a already defined in msvcrt. Lib (cinitexe. OBJ)
Libcd. Lib (crt0init. OBJ): Error lnk2005: ___ xi_z already defined in msvcrt. Lib (cinitexe. OBJ)
Libcd. Lib (crt0init. OBJ): Error lnk2005: ___ xi_a already defined in msvcrt. Lib (cinitexe. OBJ)
Msvcrt. Lib (msvcrt. dll): Error lnk2005: _ setmbcp already defined in libcd. Lib (mbctype. OBJ)
Link: Warning lnk4098: defaultlib "msvcrt. lib" conflicts with use of other libs; Use/nodefaultlib: Library
Msvcrt. Lib (cinitexe. OBJ): Warning lnk4098: defaultlib "libcd. lib" conflicts with use of other libs; Use/nodefaultlib: Library
Libcd. Lib (crt0.obj): Error lnk2001: unresolved external symbol _ main
Release/admintool.exe: Fatal error lnk1120: 1 unresolved externals
Error executing link.exe.

The settings are as follows:

# Pragma comment (linker, "/nodefaultlib: msvcrtd. lib ")
# Pragma comment (linker, "/nodefaultlib: libcd. lib ")

If you do not connect to all default libraries:

# Pragma comment (linker, "/nodefaultlib ")

Connect to the specified database:

# Pragma comment (Lib, "jrtplib-2.9.lib ")