Deploying standalone matlab exe on a Linux based server

I have deployed the MATLAB generated standalone exe with the latest MATLAB MCR version v 9.3 on a Linux machine which has a MATLAB 2017b installation. It ran as it should.

When I try the same deployment to a 64 bit Linux based server (server does not have a matlab 2017b installation). The server has the MCR V9.3 loaded just as the previous case, I receive the following error message:

"Error using phased.IsotropicAntennaElement
Can't reload '/usr/local/MATLAB/MATLAB_Runtime/v93/bin/glnxa64/libmwcoder_types.so'"

P.S. I have checked the path and system environment variables that need to be set and all of those seem to be fine.

Could anyone please help. Thanks!

____________________________________________________________________________________________________________
Following are the environment variables:

Setting up environment variables
>
> ---
>
> LD_LIBRARY_PATH is
>> ./:/usr/local/MATLAB/MATLAB_Runtime/v93/resources/siglib:/usr/local/MATLAB/MATLAB_Runtime/v93/runtime/glnxa64:/usr/local/MATLAB/MATLAB_Runtime/v93/bin/glnxa64:/usr/local/MATLAB/MATLAB_Runtime/v93/sys/os/glnxa64:/usr/local/MATLAB/MATLAB_Runtime/v93/sys/opengl/lib/glnxa64
_________________________________________________________________________________________________________>

Answer 1

[Kojiro Saito]

Please check if libraries are not missing.

In terminal,

ldd /usr/local/MATLAB/MATLAB_Runtime/v93/bin/glnxa64/libmwcoder_types.so

if there is any "not found" library, you need to add the package (using yum install or apt-get depending on the Linux distribution).

[yogesh nijsure]

Thanks a lot Kojiro! the installation of java packages through yum command worked!

The problem was fixed.

[Nina Stumpf]

I encountered the same problem, but running the ldd command shows no "not found" library, so dependencies seem to be fine.

Do you have any other idea?

[Saadallah Itani]

same here, any ideas?

[Kojiro Saito]

Do you use minimal or server version of Linux and not full desktop version? Some users In that case, libx11 would be missing. Please try

sudo yum install libx11-dev

or

sudo apt-get install libx11-dev

or suitable command for your Linux distributions.

[Amanda Dash]

I'm having this same issue, with a server version of Ubuntu 16.04.02 LTS. I checked and libx11-dev is installed on the server.

[Saadallah Itani]

I am ysubg full desktop RHEL 7

[Kojiro Saito]

Some x libraries might be missing but I have no idea what exactly is the one. I have confirmed that after installing xserver-org by the following in Ubuntu 16.04.1 Server, my compiled application works.

sudo apt-get -y install xserver-xorg

Also, in some cases, install java-1.7.0-openjdk solved this issue in RHEL7.

[Amanda Dash]

Switching from Oracle Java to the OpenJDK worked for me.

Answer 2

[George Hilliard]

I just ran into this using exactly your setup: MCR 9.3, the Phased Array Toolbox, and Ubuntu 16.04.3. Contrary to the accepted answer, installing xserver-xorg did nothing, and ldd indicated that I had all needed libraries. The failure happens at runtime, apparently when the Phased Array Toolbox (or some subcomponent) is loaded.

Instead, the following seemingly random combination of libraries is needed:

 sudo apt install libxt6 libxcomposite1 libfontconfig1 libasound2

I obtained this list through a careful reading of strace output. MathWorks needs to improve the error messages about which library it failed to find.

Answer 3

[Nikolaos Kallistis]

I got the same error:

Can't reload '../MATLAB/R2018a/bin/glnxa64/libmwcoder_types.so'

Installing openjdk-7-jdk looks it solved the issue.

    sudo apt-get install openjdk-7-jdk

I am running MATLAB 2018a at linux (Xfce 4.10).

[Mikhail Milchenko]

Installing java worked for me as well on CentOS 7:

sudo yum -y install java

Answer 4

[Alexander Mair]

Just in case it helps someone:

I ran into the same problem (or some alternation of it) when trying to deploy the matlab runtime in a docker container. For me it helped to check all library dependencies.

ldd /opt/mcr/v95/bin/glnxa64/* > /excecute/allDependencies.txt
grep "not found" /execute/allDependencies.txt | sort -t: -u -k1,1 > /execute/notfound.txt

After that I checked one by one which package is needed to install them. For me installing more libraries in the container:

apt-get install libasound2 libatk1.0-0

was needed to get the signal processing toolbox running. Although there were a lot more missing. There are a lot of Dockerfiles out there for MCR that include these libraries and more, so you can also try a Dockerfile that installs more libraries from the beginning.

Answer 5

[Austin Healy]

Renaming libmwcoder_types.so to libmwcoder_types_old.so solved the problem in my case. I'm not using the Matlab coder