The presence of the 'RoadRunner' icon in the 'Apps' tab indicates that the RoadRunner standalone application is installed. When trying to open RoadRunner by double-clicking the icon, MATLAB searches for the application in the default installation directories:
- Windows: C:\Program Files\RoadRunner R20NNx\bin\win64
- Linux, Ubuntu: /usr/local/RoadRunner_R20NNx/bin/glnxa64
Here, 'R20NNx' represents the release version. If the application isn't found in these directories, a 'Cannot find RoadRunner installation' error may occur. Here are three ways to resolve this issue:
1. The installation path can be specified when creating a ‘roadrunner’ object using the ‘roadrunner’ command.
rrApp = roadrunner(ProjectFolder=projectFolder, InstallationFolder=install_fol);
In this case, 'install_fol' is the actual installation path.
2. Modify the default RoadRunner installation folder settings using the MATLAB settings function. To set a persistent default value for the 'InstallationFolder' property, adjust the 'PersonalValue':
s = settings;
s.roadrunner.application.InstallationFolder.PersonalValue = install_fol;
This value persists across multiple MATLAB sessions for an individual user.
3. A temporary default value can be assigned for the 'InstallationFolder' property, which persists only for the current MATLAB session:
s = settings;
s.roadrunner.application.InstallationFolder.TemporaryValue = install_fol;
More details on these methods can be found on this documentation page:
