There was an error loading the library
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Dear all,
I put the compiled dll file (written in C) in 'C:\Program Files\MATLAB\R2011b\extern\include\
I have a problem when I tried to load the library using the following command:
hfile = [matlabroot '\extern\include\dll\spinapi.h']; loadlibrary('spinapi', hfile)
it gave me the following error message:
Error using loadlibrary (line 421) There was an error loading the library "spinapi" The specified module could not be found.
Caused by: Error using loaddefinedlibrary The specified module could not be found.
My operating system is 64bit Win7, matlab is 64bit version, compiler is Microsoft Software Development Kit (SDK) 7.1, which is recommended in http://www.mathworks.com/support/compilers/R2011b/win64.html
Does anyone know what the problem is? I almost tried every method that I could find in google. But they didn't help. I am so deperated......
One thing made me very confused was that, I did exactly the same in my old computer, its operating system is 32bit Windows XP, matlab is R2009a 32bit version, compiler is lcc-win32 C, and it could load the library without any error!!!
I will be very thankful to anyone who can help me.
Best Regards, Kit
1 Comment
Peter
on 13 Jan 2016
Open your spinapi.dll in Dependency Walker (google: depends22_x64.zip). You will see which .dll files need to be copy or installed with your spinapi.dll
Answers (6)
Philip Borghesani
on 12 Jan 2012
- Open .../bin/win64/matlab.exe with Dependency Walker.
- Start profiling
- Wait for MATLAB to come up and clear the log window
- Issue the loadlibrary command and examine the log in dDependency Walker for error messages.
The problem is probably a missing runtime library or other dll dependency.
0 Comments
Walter Roberson
on 11 Jan 2012
'C:\Program Files\MATLAB\R2011b\extern\include\' is not on my matlabpath, so I cannot think of any reason MATLAB would think to look there for .dll files. Did you add that directory to your matlabpath ?
3 Comments
Walter Roberson
on 12 Jan 2012
Are you able to load the sample library using the form showed in "addpath example" in http://www.mathworks.com/help/techdoc/ref/loadlibrary.html ?
Kit Mai
on 12 Jan 2012
5 Comments
Philip Borghesani
on 12 Jan 2012
Microsoft uses the same error messages for both 32 and 64 bit Windows. In their infinite wisdom they consider 64 bit programs to be written to the win32 api. There is no win64 api.
Venugopal
on 17 Apr 2013
I have the similar problem of Kit Mai...
Kit Mai.. did u find some solution??
0 Comments
dpsycho
on 21 May 2013
Did you happen to have crashed before this happened?
I have the same thing. At some point everything worked, matlab crashed, and then could not load the library. Rebooted even and still no luck.
0 Comments
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