Hey Julien, I don't actually see this mentioned anywhere. But you probably need to include a .targets file - you can see an example for the package Skybrud Redirects here: https://github.com/skybrud/Skybrud.Umbraco.Redirects/blob/v4/main/src/build/Skybrud.Umbraco.Redirects.targets And it's referenced here: https://github.com/skybrud/Skybrud.Umbraco.Redirects/blob/v4/main/src/Skybrud.Umbraco.Redirects/Skybrud.Umbraco.Redirects.csproj#L48-L51