Continous Integration via matlab toolbox file.

I want to setup Auzre DevOps for a continous integration process where a matlab toolbox is being packaged by an agent. The whole matlab code is therefore hosted in a git repository on an Azure DevOps server. The repository also includes a prj file with the configuration of the matlab toolbox being packaged.

The ci process is as follows:

1. The agent checks out the latest version of the matlab code from the repository.
2. A matlab script is executed with the following command: matlab.addons.toolbox.packageToolbox('xyz.prj')

While this works pretty well on my desktop computer, the matlab instance on the agent throws the following error:

Unable to package the project 'C:\agent\_work\14\s\xyz.prj'. Toolbox root ${PROJECT_ROOT} does not exist.

Can anyone point me to a solution for this problem.