PTV Visum - Frequently Asked Questions (FAQs)

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(#VIS14127)

During the installation an error message appears:
'This is not a valid PTV Visum folder!'

Instead of a setup for a full install, the setup for a service pack was executed, without installing the matching PTV Visum release first. You have to install PTV Visum by executing a setup before updating it in a second step.