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Archived Forum PostQuestion:
I was trying to compile as sample - "sftp local file upload" Win32 application using visual studio 6 and the downloaded libraries . But every time i am getting following linking error
Linking... SFTPUpload.obj : error LNK2001: unresolved external symbol "void cdecl CkSFtp_Dispose(void *)" (?CkSFtp_Dispose@@YAXPAX@Z) SFTPUpload.obj : error LNK2001: unresolved external symbol "int cdecl CkSFtp_CloseHandle(void ,char const )" (?CkSFtp_CloseHandle@@YAHPAXPBD@Z) SFTPUpload.obj : error LNK2001: unresolved external symbol "int cdecl CkSFtp_UploadFile(void ,char const ,char const *)" (?CkSFtp_UploadFile@@YAHPAXPBD1@Z) SFTPUpload.obj : error LNK2001: unresolved external symbol "char const * cdecl CkSFtp_openFile(void ,char const ,char const ,char const )" (?CkSFtp_openFile@@YAPBDPAXPBD11@Z) SFTPUpload.obj : error LNK2001: unresolved external symbol "int cdecl CkSFtp_InitializeSftp(void *)" (?CkSFtp_InitializeSftp@@YAHPAX@Z) SFTPUpload.obj : error LNK2001: unresolved external symbol "int cdecl CkSFtp_AuthenticatePw(void ,char const ,char const )" (?CkSFtp_AuthenticatePw@@YAHPAXPBD1@Z) SFTPUpload.obj : error LNK2001: unresolved external symbol "int cdecl CkSFtp_Connect(void ,char const ,int)" (?CkSFtp_Connect@@YAHPAXPBDH@Z) SFTPUpload.obj : error LNK2001: unresolved external symbol "void cdecl CkSFtp_putIdleTimeoutMs(void ,int)" (?CkSFtp_putIdleTimeoutMs@@YAXPAXH@Z) SFTPUpload.obj : error LNK2001: unresolved external symbol "void cdecl CkSFtp_putConnectTimeoutMs(void *,int)" (?CkSFtp_putConnectTimeoutMs@@YAXPAXH@Z) SFTPUpload.obj : error LNK2001: unresolved external symbol "char const * cdecl CkSFtp_lastErrorText(void *)" (?CkSFtp_lastErrorText@@YAPBDPAX@Z) SFTPUpload.obj : error LNK2001: unresolved external symbol "int cdecl CkSFtp_UnlockComponent(void ,char const )" (?CkSFtp_UnlockComponent@@YAHPAXPBD@Z) SFTPUpload.obj : error LNK2001: unresolved external symbol "void * cdecl CkSFtp_Create(void)" (?CkSFtp_Create@@YAPAXXZ) Debug/SFTPUpload.exe : fatal error LNK1120: 12 unresolved externals Error executing link.exe.I have tried linking all possible libraries and also tried with every library available . Still not liking ..
Please suggest on this
If your source filename ends in ".cpp", then it is being compiled as C++. If using the "C" API, then make sure to include the Chilkat "C" headers within an "extern "C"". For example:
extern "C" {
#include "C_CkSFtp.h"
}
If you are truly writing "C" code, then it might make more sense that your source file uses the ".c" extension. Also, if you are actually writing C++ code, then it might make sense to use the Chilkat C++ API instead of the "C" API.