Creating a runtime log for deployed application

Question

Alexander Tye 2018-2-26

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https://ww2.mathworks.cn/matlabcentral/answers/384954-creating-a-runtime-log-for-deployed-application

评论： Eric Delgado 2022-9-17

I am using Application Compiler to create standalone versions of scripts. To debug, I would like to create a runtime log, but MATLAB does not appear to do so when I tick the box. Has anyone else had this problem?

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Answer 1

Chandani Madnani 2018-3-1

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https://ww2.mathworks.cn/matlabcentral/answers/384954-creating-a-runtime-log-for-deployed-application#answer_307920

编辑：Chandani Madnani 2018-3-1

Log file is created in the same folder when you execute exe from for_testing or for_redistribution_files folders.

If you are running from for_redistribution, the log files will not be created if the application launched does not have privileges to write files in the installation directory. For example, in operating systems like Windows 7, the application running with user privileges will not be allowed to create files under "C:\Program Files". If the deployed application is installed under the "C:\Program Files" or "C:\Program Files (x86)" path, please follow the workarounds mentioned below to generate log files from the application.

1. The application can be launched as administrator. For Windows 7 - Right click on the application executable or shortcut and click on "Run as administrator"

2. Install the application in a path where the user running the application has privileges to create files. For example, installing under the Path: "C:\Users\<user_name>"

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Eleanor Betton 2022-6-29

I have the same poblem with log files on the desktop when the user checks the shortcut at install. If you manually create a shortcut afterwards it doesn't occur.

Eric Delgado 2022-9-17

在 MATLAB Online 中打开

@Deependra Mishra and @Eleanor Betton

You have to map the PATH of your app (project, installed or deployed). You could create a property named "app.RootFolder" and put the lines of codes (below) in your Startup.

And... don't forget to point to the full path of files - fullfile(app.RootFolder, 'Subfolder', 'File.ext'), for example.

if isdeployed                                                   % Deployed version
    [~, result]    = system('path');
    app.RootFolder = char(regexpi(result, 'Path=(.*?);', 'tokens', 'once'));
    if ~isfile(fullfile(app.RootFolder, 'NameOfYourApp.exe'))
        % ERROR
    end    
else
    prjPath = matlab.project.rootProject;
    appPath = fullfile(char(com.mathworks.appmanagement.MlappinstallUtil.getAppInstallationFolder), 'NameOfYourApp');
    
    if ~isempty(prjPath) & strcmp(prjPath.Name, 'NameOfYourApp') % Project version
        app.RootFolder = char(prjPath.RootFolder);
        
    elseif isfolder(appPath)                                     % Installed version
        app.RootFolder = appPath;
        
    else
        % ERROR
    end
end