I have compiled Mex file successfully on my laptop. But when I am running it, it says Invalid mex file 'c:\newfolder\filename.mexw32' The specified module could not be found.
System specification:
OS: windows 7
MATLAB 2010a
Microsoft Visual Studio 2008.
The same mex file is compiled and run successfully on my PC under XP SP3.
This MathWorks support link suggests two possible reasons to your problem:
You do not have all of the necessary libraries that the MEX-function is dependent upon.
You are running a MEX-file on a different version of MATLAB than it was compiled on.
Either way, to locate the source of this error it says that you need to list all dependent library files and verify their existence in the system you're trying to run the MEX file on, and also recommends the Dependecy Walker as the tool to to do that.
Do you you the mex file on another system than the one it is created on?
If so, then you need to install the Microsoft Visual C++ Redistributable on that machine.
I had this problem also when upgrading from Matlab2010a/VS2008 to Matlab2013a/VS2010.
All my environment variables were sent correctly.
A reboot fixed problems with OpenCV dlls not being found, I assume that it was still trying to link to the OpenCV dlls for VS2008 (even though I had changed the path). However still my mex file could not find libmex.dll.
When I installed Matlab2013a, I did not uninstall the old version (in case I wanted to go back).
However that was the cause of my problem.
Once I uninstalled the old version of Matlab and rebooted again, the problem was gone.
I had a similar problem. I was only linking against 1 'lib' so I simply copied that lib into the same folder as the mexw64 and it worked.
I have not poked around for the correct place to tell MATLAB to add the lib's real location to whatever path it's looking at.
Related
I'm currently trying to learn Assembly for x64 Windows. I tried the example code from this Intel website,
but whenever I try to compile it with the command given in the document:
ml64 hello.asm /link /subsystem:windows /defaultlib:kernel32.lib /defaultlib:user32.lib /entry:Start
I always get an
LNK1104 error
I know that it means the compiler can't find the library file, I googled the problem and quickly found that I need Visual Studio with Windows SDK, which I downloaded and installed. But still can't find a kernel32.lib or user32.lib in any files other than the Windows system files.
I tried everything and I simply can't fix it. I hope someone could help figure this out.
There is a well-known MASM32 SDK available created by hutch--. This package contains the requested libraries in a (legacy) 32-bit version.
But there is also a 64-bit update of that famous package by hutch--:
Current build of the 64 bit MASM SDK.
It should contain the .inc and .lib files you need and more...
This is the current build of the 64 bit MASM SDK. This one is a lot closer to complete and with the correct Microsoft binaries added to it, it is capable of building a wide array of application types. It can be use in 2 different ways, it should be unzipped from the root directory of the partition that it is being installed on. You can either manually add it to an installation of the MASM32 SDK OR you can install it on a partition that does not have MASM32 on it and simply rename the buildx64 directory to MASM32. Installing it on another partition is the preferred technique as QE has its menus and accessories set up for building 64 bit code.
You still need to add the Microsoft binaries which would typically be from an installation of vs2017 or from an earlier version for Win7 64. In the bin64 directory there is a file called "Microsoft_File_List.txt" which shows the files you need. The list is from the current version of Visual Studio 2017 version and if this is the version you have, use the ML64 from the "x86_amd64" directory that is 402,584 bytes in size.
In the "buildx64" directory is a batch file called "makeall.bat". This must be run to build all of the libraries and include files.
They are the gold standard of Windows assembly developing.
Using 2012b on Centos6 I compiled my code using deploytool.
To be sure I'm doing things correctly, I re-install the MCR to make sure I'm using the exact version matlab wants me to use. Following the instructions after installing the MCR (v83) I append the corresponding paths to LD_LIBRARY_PATH and XAPPLRESDIR.
When I use the run_myProgram.sh script. It echos out the library paths and I can see that the MCR paths are correct.
However, at the startup of my compiled program, I'm getting this error:
"error while loading shared libraries: libmwmclmcrrt.so.8.0: cannot open shared object file: No such file or directory"
Anyone out there have a way to fix this? For example, is it a problem with my system configuration or a problem with my deployment?
The plot thickens. I noticed that in the MCR installation, I only have libmwmclmcrrt.so.8.3. How does the deploytool not give me the version I need?
thanks!
You need to download MCR version 8.0 for r2012b. Please see the table here : MCR Version Table
I'm having trouble getting a compiled .exe file to run with MCR instead of Matlab (I can tell because the program is using multiple threads, which it would not do if it were running with MCR). The MATLAB documentation (http://www.mathworks.com/help/toolbox/compiler/f12-999353.html) says:
"To run deployed components against the MCR install, mcr_root\ver\runtime\win32|win64 must appear on your system path before matlabroot\runtime\win32|win64.
If mcr_root\ver\runtime\arch appears first on the compiled application path, the application uses the files in the MCR install area.
If matlabroot\runtime\arch appears first on the compiled application path, the application uses the files in the MATLAB Compiler installation area."
Can anyone connect the dots a bit more for me? I don't know what this means. Thanks!
I had the same problem: my compiled code was multithreaded, which I did not want.
The problem got solved by compiling with the option:
-R -singleCompThread
You need to set properly the PATH global environment variable in Windows. How you do it exactly depends on Windows version.
Here is the first link from Google by query "set path on Windows": http://www.computerhope.com/issues/ch000549.htm
This variable is a list of directories. Make sure you have a directory with MCR executable earlier in this list than a directory with MATLAB executable.
I have problems running a program compiled with MCC that uses parfor. The non-compiled .m version works (no bug). When I run the compiled version, I get
"distcomp.remoteparfor" is undefined. I believe I exactly have the error described in
the following link.
http://www.mathworks.com/support/solutions/en/data/1-PAHWE/index.html?product=CO&solution=1-PAHWE
However, since MCR is not installed on my machine (got Matlab and MCC),
I am wondering what the pathes $APPNAME_mcr/java/jar/toolbox and
$MCR/MATLAB Component Runtime/v70/java/jar/toolbox correspond to. I found
the distcomp.jar file in C:\Program Files\MATLAB\R2011b\java\jar\toolbox, but I don't know where to put it since see any path corresponding to $MCR/MATLAB Component Runtime/v70/java/jar/toolbox since MCR is not installed.
Thanks a lot!
Fred
No need to install the MCR if you are simply trying to run the application on the same machine that has MATLAB. The question to ask is, HOW are you launching the compiled application? From a DOS command window? From within MATLAB using the SYSTEM command?
If you are launching the application from a DOS / UNIX command line, then the important thing to keep in mind is that the MATLAB binaries need to be on your system path i.e. just make sure:
$MATLABROOT\bin\$ARCH
is on your system path. Where $MATLABROOT is the matlab installation folder, and $ARCH is your system architecture. For example:
c:\work\matlab\bin\win64
on my machine since my installation folder which contains MATLAB is:
c:\work
and i am on a win64 machine.
The problem is solved. The solution is to make the program
a function instead of a script :
http://www.mathworks.com/matlabcentral/answers/22825-parfor-errors-when-file-is-compiled
I seem to have wiped out my path environment variable a while back. I've been slowly restoring things. I have both MATLAB and the MATLAB compiler installed. DLL's I've created from the MATLAB compiler won't run because they can't find the MATLAB compiler runtime dlls. While I did find the particular files that are my immediate problem. I'm wondering if there is a MATLAB *.bat file or command I can type that will restore my path variable to what it was after MATLAB and the Compiler were installed. I'm hoping to forestall future problems.
In case it's version specific I'm running MATLAB R2010b, I'm running a 32 bit version on a 64 bit machine.
[Edit]
I thought I would add that the path I need for running the compiled version was:
C:\Program Files (x86)\MATLAB\MATLAB Compiler Runtime\v714\runtime\win32
With luck, that one along with the two suggested in the answer will get me back to the original state.
restoredefaultpath might recover your MATLAB installation. Consider the use of startup.m, in order to easily undo changes to your environment.
You want to have these two directories on the PATH (I think the order is important):
C:\Program Files\MATLAB\R2010b\runtime\win32
C:\Program Files\MATLAB\R2010b\bin
Obviously you need to adjust the path to match your setup and architecture (those are on a WinXP 32-bit)
If you have a current software maintenance contract for your MATLAB, it may well be that the easy thing to do is just upgrade to the next version of MATLAB since R2011a is out now (unless there is some compelling reason why you must develop on R2010b. Running the software installer should recreate the default environment for MATLAB. I am, of course, assuming that you have Administrator access on your PC and have permission to install software.