Thank you for contacting Syncfusion Support.
Regarding Query: I try to do this with the project converter but it dosen't works.
Unfortunately, there is no tool to convert the MVC5 project as MVC6. We need to do manually to migrate to MVC6 application. Refer to the following online link of Microsoft.
Online documentation for MVC6 project setup is still in development status and it will be published in online once the contents are completed. For your convenience, we have converted the document as PDF file and attached in the following link.
Please let us know if you need any further assistance.