Be it within the trial time or regularly use, you always need license file to run VisionLib.
You get all your (active) licenses from the download list in the Downloads section. Click on “common” to open the list. In order to use the license file in Unity, copy it into the
StreamingAssets/VisionLib/ folder and if it is not named “license.xml”, drag and drop it in the public field of the
TrackingConfiguration component on the
VisionLib will blame if your license file has expired. In such cases, write us at email@example.com.