Upgrade from Version 11 to Version 13

We are trying to upgrade our Umbraco Site from 11 to 13 but the catch is we do not have the application code with us. We just have production running application and that was build with basic template no code change and deployed for testing and started using it and team lost the original code. Now we need to upgrade to version 13.

Attempt 1
Create a New project with Version 13 and upload settings and content from Prod : I am ending with errors when i try to upload

Attempt 2:
Tried to create a version 11 app and upload settings and content from Prod: this one also ending with different errors each time. I have version 11 Usync and prod and used the same in my new app as well.

Error1: Usync noticed one or more things wrong with the zip file
Error2: errors with some 10 datatypes and link with details and all say “the item does not currently exist, and will be created on Import”.

Can some one please let me know how to upgrade my app to version 13.

Any help is greatly appreciated.

First of all, query the database on datatypes, maybe it’s missing some custom datatypes. Usually, the property editor names tell you which packages you are missing

Then make a backup of the database, do this locally, for example with SQL Developer edition. Then create a new project, install the property editors, and copy the views and stuff from production to this build, do this one set at a time. First for example a clean project with the packages. Connected to database. Check if it’s working. And then to the next step.

If you need more assistance send me a message and I can help you further.

1 Like

Thanks for the reply. when I moved step by step i was able to make DB work. But my CSS is not working in Umbraco 15 which is working with Version 11. So, Just wanted to know it a special issue for or general issue and have a step by step update for that. I just copied my old CSS and other folders.