MATLAB: Is there an additional directory level between the ctfroot and the files I include with the compiled application

compilerctfrootdirectoryMATLAB Compiler

I have created and deployed a compiled application using MATLAB Compiler. When I run the application on the target machine and examine the location of the CTF root:

C:\Users\UserName\Desktop\Temp\mcrCache9.7\AppName1

I see that this folder does not contain the files I included when packaging my app using MATLAB Compiler. Instead, I see the following directories:

.matlab

.MATA

AppName

AppName_5F4C30D8E7FC4C9362D4D35FA80E3C3E

toolbox

.created

The folder which actually contains the files I included with my application is "AppName" (full path C:\Users\UserName\Desktop\Temp\mcrCache9.7\AppName1\AppName).

However, I've done this with several applications and notice that the name of this subdirectory is not always the same as the name of my project (sometimes it is a shortened version). There doesn't seem to be any way to predict the name of this folder.

In previous versions of MATLAB (R2018a and earlier), this additional subdirectory did not exist. Is this expected?

Best Answer

This behavior is expected, and is a change which was introduced in R2018b.

Any relative pathing used within your compiled code will still work.

Related Solutions

MATLAB: Can I use ADDPATH in a compiled application from MATLAB Compiler 4.10 (R2009a)

This change has been incorporated into the documentation in Release 2011a (R2011a). For previous releases, read below for any additional information:

It is not recommended to use ADDPATH in a deployed application. As a workaround, use paths relative to MATLABROOT or CTFROOT.

For example, change code like this:

addpath(my/data/directory)
fp = fopen('data.file', 'r');

To code like this:

fp = fopen(fullfile(ctfroot, 'my', 'data', 'directory', 'data.file'));

MATLAB: Replacing “dir” when deploying a GUI

Try this:

if isdeployed
  a = dir(fullfile(ctfroot, '**', '*.xlsx')); %remove '**' if you know a precise folder location. 
  assert(~isempty(a), 'ERROR: Could not find a file at "%s".', fullfile(ctfroot, '**', '*.xlsx'))
else
  a = dir(fullfile(my_root, '**', '*.xlsx')); %my_root is some other "main" dir of your codes
  assert(~isempty(a), 'ERROR: Could not find a file at "%s".', fullfile(my_root, '**', '*.xlsx'))
end

Best Answer

Related Solutions

MATLAB: Can I use ADDPATH in a compiled application from MATLAB Compiler 4.10 (R2009a)

MATLAB: Replacing “dir” when deploying a GUI

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