https://community.intel.com/t5/Software-Archive/LNK-2001-error/m-p/974149#M24668 I wonder if you had added some options such as /IGNORELIB or /NODEFAULTLIB. If so, remove them. Then go to Project..Settings..Fortran..Libraries and reselect the option there that matches what you have for C++..Code Generation.<BR /><BR />Steve Fri, 16 Nov 2001 07:33:56 GMT Steven_L_Intel1 2001-11-16T07:33:56Z https://community.intel.com/t5/Software-Archive/LNK-2001-error/m-p/974148#M24667 I have an application that was previously linked and compiled under Compaq Fort ran I 6.1A ( and Visual Studio 6.0 ). I upgraded to Compaq Version 6.6 ( and Visual Studio SP 5 ) and now I get the following unresolved external link error <BR /> <BR />link error Linking... <BR />LINK : warning LNK4075: ignoring /EDITANDCONTINUE due to /INCREMENTAL:NO specification <BR />dfor.lib(for_init.obj) : error LNK2001: unresolved external symbol __pxcptinfoptrs <BR />dfor.lib(for_m_qqs.obj) : error LNK2001: unresolved external symbol _errno <BR />dfor.lib(for_portlib.obj) : error LNK2001: unresolved external symbol _errno <BR />sa_dev_r.exe : fatal error LNK1120: 2 unresolved externals <BR />Error executing link.exe. <BR /> <BR />sa_dev_r.exe - 4 error(s), 1 warning(s) <BR /> <BR />Help! Can anyone tell me how I can resolve the missing externals ( __pxcptinfoptrs and _errno )? <BR />Thanks <BR />Wayne Fri, 16 Nov 2001 07:19:57 GMT https://community.intel.com/t5/Software-Archive/LNK-2001-error/m-p/974148#M24667 Intel_C_Intel 2001-11-16T07:19:57Z https://community.intel.com/t5/Software-Archive/LNK-2001-error/m-p/974149#M24668 I wonder if you had added some options such as /IGNORELIB or /NODEFAULTLIB. If so, remove them. Then go to Project..Settings..Fortran..Libraries and reselect the option there that matches what you have for C++..Code Generation.<BR /><BR />Steve Fri, 16 Nov 2001 07:33:56 GMT https://community.intel.com/t5/Software-Archive/LNK-2001-error/m-p/974149#M24668 Steven_L_Intel1 2001-11-16T07:33:56Z