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Error: "Application Cannot be Started. Contact the Application Vendor." When Installing or Upgrading P6 Professional Using ClickOnce (Doc ID 2307085.1)

Last updated on MARCH 20, 2024

Applies to:

Primavera P6 Enterprise Project Portfolio Management Cloud Service - Version and later
Information in this document applies to any platform.


When attempting to upgrade or install P6 Professional ClickOnce, the following error occurs.

Application cannot be started. Contact the application vendor.

The issue can be reproduced at will with the following steps:
1. Login to the Oracle Cloud Portal
2. Click the link to install P6 Professional using ClickOnce
3. Issue occurs


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