This is some error ocurred when linking my project, all errors and warnings are listed below:

JRtest error LNK2005: __afxForceSTDAFX already defined in mfcs71d.lib(stdafx.obj)
JRtest fatal error LNK1169: one or more multiply defined symbols found
JRtest warning LNK4098: defaultlib 'mfc71.lib' conflicts with use of other libs; use /NODEFAULTLIB:library
JRtest warning LNK4098: defaultlib 'mfcs71.lib' conflicts with use of other libs; use /NODEFAULTLIB:library
JRtest warning LNK4098: defaultlib 'MSVCRT' conflicts with use of other libs; use /NODEFAULTLIB:library

Who can help me about this, thank you very much!