When trying to create a new project in Trados Studio, a message similar to the one below is shown:

Failed to load project template from [template file path]
Could not find a part of the path [template file path]

Go to File > Setup > Project Templates and remove the template mentioned in the error message. Try again to create a new project - if a new error is shown, remove that template too. Continue until you either do not get the error or all the templates are removed. Now re-add the templates in File > Setup > Project Templates from the correct location.

The path to one or more project templates changed. We have seen this after the user installed One-Drive which added its own folder to the path, but there may be other situations.