An error occurred while loading the project. The ip address set for the local Web Server preview is incorrect 
Author: Nikos V.
Visited 2215,
Followers 1,
Shared 0
Hello i have the same problem using X5 professional 15. Projects can be open with other versions. But i need to open the projects with 15. I tried to edit (and delete) the config file but didnt work. Please let me know about possible solution. Last night i didnt have any problem using the program from my home pc. Today's morning doesnt work in my office pc Thank you very much (i am using WIN7
Posted on the
Follow the post of Elisa here: https://helpcenter.websitex5.com/en/post/192257
That should solve the issue.
Best regards
Hi Nikos,
I already answered you at https://helpcenter.websitex5.com/en/post/192899 you can follow that post to find the solution.
Thanks! Kind regards.