Problems using mcc (R2015b)

Hi,

I'm trying to use mcc and am receiving the following error (this error message takes a very long time to appear):

>> mcc -m hello.m
Error using matlab.depfun.internal.database.SqlDbConnector/doSql
Received exception (The database
file:%2Fsw%2FMATLAB%2FR2015b%2Ftoolbox%2Fmatlab%2Fdepfun%2F%2Bmatlab%2F%2Bdepfun%2F%2Binternal%2Frequirements%5Fglnxa64%5Fdfdb?mode=ro
is locked, or a table in the database is locked. (database is locked)) upon
attempting an operation; details: SELECT Name FROM Target WHERE ID IN (SELECT
DISTINCT Target FROM Component_Path_Item) (attempts: 200; interval [in ms]
between attempts: 500).

Error in matlab.depfun.internal.SearchPath/read_targets_from_database (line
534)
            db.doSql(query);

Error in matlab.depfun.internal.SearchPath (line 886)
                s.KnownTargets = read_targets_from_database(s);

Error in matlab.depfun.internal.requirements (line 139)
        s = matlab.depfun.internal.SearchPath(target, varargin{2:end});

Error using mcc
Unexpected error while determining required deployable files. Compilation
terminated.

The reported file /sw/MATLAB/R2015b/toolbox/matlab/depfun/+matlab/+depfun/+internal/requirements_glnxa64_dfdb exists.

I've tried setting MCC_USE_DEPFUN but that doesn't seem to have improved the situation - running

>> mcc -m hello

sits there for a very long time until the connection to the underlying shell times out and is killed.

Any help appreciated.

Thanks,

Adrian

Answer 1

[Mudambi Srivatsa]

I understand that you are trying to use "mcc" with MATLAB R2015b. You noticed that it takes a very long time to execute until the connection is timed out after setting 'MCC_USE_DEPFUN' environment variable. I am assuming that you followed the steps in the MATLAB Answers link below for setting the environment variable.

https://www.mathworks.com/matlabcentral/answers/259763-mcc-problem-on-linux-2015b

I suspect the license file located on a network server might be causing the issue. If MATLAB fails to connect to the remote license file, it results in the connection timeout issue. I suggest you to use a local license file with mcc to verify the same. You can pass the local license file to "mcc" using '-Y' parameter as follows:

>> mcc -m hello.m -Y license.lic

Note that the '-Y' flag works only with the command-line mode.

If the issue persists even after using the local license file or if the local license cannot be used due to restrictions, I suggest you to contact MathWorks Technical Support for further assistance.