library error after compiling - matlab

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

Related

MATLAB 2014a (8.3) Compiler Runtime Errors libmwlaunchermain.so

MATLAB 2014a (8.3) Runtime Compiler (MCR) Errors when trying to launch deployed (using
deploy tool) application in Ubuntu 13.04.
Right after installation of MCR if one runs the deployed application following error appears:
error while loading shared libraries: libmwlaunchermain.so: cannot open shared object file: No such file or directory.
Since I have already found a solution to this problem wasting a day, I just want to share it:
This seems to be a problem of MATLAB MCR installation script designed for Linux by MathWorks. Furthermore, it is a result of a known Ubuntu bug. To fix it, add your MCR to the $PATH as shown below:
First make sure to add the missing files to the right folder, in terminal:
sudo cp /usr/local/MATLAB/MATLAB_Compiler_Runtime/v83/runtime/glnxa64/* /usr/local/MATLAB/MATLAB_Compiler_Runtime/v83/bin/glnxa64
Add the proper library folder to your .profile, such that this change will stay after logout
ubuntu: gedit .profile
In the end of the file add following lines:
#MATLAB MCR
export LD_LIBRARY_PATH=/usr/local/MATLAB/MATLAB_Compiler_Runtime/v83/bin/glnxa64
export XAPPLRESDIR=/usr/local/MATLAB/MATLAB_Compiler_Runtime/v83/X11/app-defaults
export PATH=$PATH:$LD_LIBRARY_PATH
export PATH=$PATH:$XAPPLRESDIR
Invoke following code in the terminal to make sure that Ubuntu bug doesn't re-write your variable:
echo STARTUP=\"/usr/bin/env LD_LIBRARY_PATH=\${LD_LIBRARY_PATH} \${STARTUP}\" | sudo tee /etc/X11/Xsession.d/90preserve_ld_library_path
Reboot
If this solution doesn't work, try to reinstall MATLAB MCR 8.3 from the MathWorks website and repeat the steps.
In my case (Matlab R2016b = v91), the binary generated by Matlab was accompanied by a shell script which sets up the LD_LIBRARY_PATH for me. If I just run
./run_scriptname.sh
it complains about the missing <deployedMCRroot>. So running the script with
./run_scriptname.sh /home/user/MatlabMCR/v91
it worked out of the box.
For me, it was not obvious that the path shown above is the <deployedMCRroot> because I chose /home/user/MatlabMCR as installation directory. And with the wrong path specified, it led to the same error message.

Error: Invalid MEX file, the specified module could not be found

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.

How to setup opencv2.4.0 with mingw in Netbeans?

How to setup opencv2.4.0 with mingw in Netbeans? I want to make the setup in windows xp x86 machine?
Updated:
I made a setup as set in this link SO link. My program get compiled properly but while executing, it got crahed.
I also Posted the same in this link-MyPost
User PATH Variables:
C:\ctags;C:\cscope;C:\MinGW\bin;C:\OpenCV2.4.0\build\x86\mingw\bin;
System PATH variable:
./bin;%SystemRoot%\system32;%SystemRoot%;%SystemRoot%\system32\wbem;C:\Program
Files\Intel\WiFi\bin;C:\Program
Files\TortoiseSVN\bin;C:\WINDOWS\system32\gs\gs7.05\bin;C:\cscope;C:\ctags;C:\Program
Files\Vim\vim73;C:\Program Files\QuickTime\QTSystem\;C:\Program
Files\Java\jre6\bin;C:\Program Files\Windows
Imaging\;C:\MinGW\msys\1.0\bin;C:\OpenCV2.4.0\build\x86\mingw\bin;C:\MinGW\bin;
Update:
I tried compiling and adding TBB path in windows 7. Even after adding the PATH I get the same issue and the snap shot of the error is below:
I tried the same in windows XP and I didnt get the above error but the application get crashed as before.
Did you do this?
Since version 2.1, OpenCV use the TBB library to support parallel processing.
If you use MinGW as a compile suite you should compile TBB yourself
http://opencv.willowgarage.com/wiki/TBB
http://opencv.willowgarage.com/wiki/MinGW
After compilation, you need to add its path to system path.
FYI, OpenCV 2.4.2 provided with compiled TBB dll for MingW.

Running Matlab MCR and MATLAB on the Same Machine

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.

Runtime error for MCC compiled program using parfor

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