Error LNK201 in MEX compilation

2013 10 8
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更新时间：2013 10 11
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Hi everyboy,
I am trying to compile a Fortran code (f90) using "MEX" command.
  • This is my MATLAB version: R2012b;
  • This is my compiler: Intel Visual Fortran 12 (with Microsoft Software Development Kit (SDK) linker);
and (unfortunately) this is the only result I've obtained:
Creating library C:\Users\Paolo\AppData\Local\Temp\mex_a9T3Xq\templib.x and object C:\Users\Paolo\AppData\Local\Temp\mex_a9T3Xq\templib.exp
refpropm_PC.obj : error LNK2019: unresolved external symbol MXISSTRING referenced in function MEXFUNCTION
refpropm_PC.obj : error LNK2019: unresolved external symbol SETUP referenced in function MEXFUNCTION
refpropm_PC.obj : error LNK2019: unresolved external symbol WMOL referenced in function MEXFUNCTION
refpropm_PC.obj : error LNK2019: unresolved external symbol XMOLE referenced in function MEXFUNCTION
refpropm_PC.obj : error LNK2019: unresolved external symbol PHFLSH referenced in function MEXFUNCTION
refpropm_PC.obj : error LNK2019: unresolved external symbol TPFLSH referenced in function MEXFUNCTION
refpropm_PC.obj : error LNK2019: unresolved external symbol PDFLSH referenced in function MEXFUNCTION
refpropm_PC.obj : error LNK2019: unresolved external symbol DHFLSH referenced in function MEXFUNCTION
refpropm_PC.obj : error LNK2019: unresolved external symbol TDFLSH referenced in function MEXFUNCTION
refpropm_PC.obj : error LNK2019: unresolved external symbol THFLSH referenced in function MEXFUNCTION
refpropm_PC.obj : error LNK2019: unresolved external symbol HSFLSH referenced in function MEXFUNCTION
refpropm_PC.obj : error LNK2019: unresolved external symbol DSFLSH referenced in function MEXFUNCTION
refpropm_PC.obj : error LNK2019: unresolved external symbol PSFLSH referenced in function MEXFUNCTION
refpropm_PC.obj : error LNK2019: unresolved external symbol TSFLSH referenced in function MEXFUNCTION
refpropm_PC.obj : error LNK2019: unresolved external symbol DEFLSH referenced in function MEXFUNCTION
refpropm_PC.obj : error LNK2019: unresolved external symbol PEFLSH referenced in function MEXFUNCTION
refpropm_PC.obj : error LNK2019: unresolved external symbol TEFLSH referenced in function MEXFUNCTION
refpropm_PC.obj : error LNK2019: unresolved external symbol DQFL2 referenced in function MEXFUNCTION
refpropm_PC.obj : error LNK2019: unresolved external symbol THERM referenced in function MEXFUNCTION
refpropm_PC.obj : error LNK2019: unresolved external symbol PQFLSH referenced in function MEXFUNCTION
refpropm_PC.obj : error LNK2019: unresolved external symbol TQFLSH referenced in function MEXFUNCTION
refpropm_PC.obj : error LNK2019: unresolved external symbol MXCREATESCALARDOUBLE referenced in function MEXFUNCTION
refpropm_PC.obj : error LNK2019: unresolved external symbol XMASS referenced in function MEXFUNCTION
refpropm_PC.obj : error LNK2019: unresolved external symbol TRNPRP referenced in function MEXFUNCTION
refpropm_PC.obj : error LNK2019: unresolved external symbol SURTEN referenced in function MEXFUNCTION
refpropm_PC.mexw64 : fatal error LNK1120: 25 unresolved externals
Does anybody know how to fix it?
Thanks in advice!
Paolo Conti

5 个评论
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James Tursa
James Tursa 2013-10-8
You need to include all source code and library files with the mex command. What mex command did you use?
Kaustubha Govind
Kaustubha Govind 2013-10-10
Paolo: When you post an answer and "accept" it, it indicates that you have found the resolution to your issue. I would recommend that you delete the answer and post your reply to James' question here as a comment.
James is asking where your functions like PQFLSH, XMASS, etc. are defined, and whether you have linked all relevant files/libraries against your MEX-file.
Also, note that mxIsString has been obsoleted and replaced by mxIsChar and mxCreateScalarDouble has been replaced by mxCreateDoubleScalar.
Paolo Conti
Paolo Conti 2013-10-10
编辑：Paolo Conti 2013-10-10
Thanks Kaustubha for your explanation about the correct use of this forum... I did not know the difference between "comments" and the "answers" (I'm a new user).
I followed your indications and now the compiler works!!
Thanks to both of you for your precious help!!
What should I do now? Create an answer?
Kaustubha Govind
Kaustubha Govind 2013-10-10
Paolo: You simply need to replace mxIsString with mxIsChar and mxCreateScalarDouble with mxCreateDoubleScalar. Check the documentation to make sure the right syntax is used in your code.
Paolo Conti
Paolo Conti 2013-10-11
Thank you for your help! Now it works!
What should I do now? Create an answer ?

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