First you need to install Sitefinity locally and then migrate it to your azure account
- db, hosted service etc. Also you should enable the following lines in the web.config that will ensure that your project will not write not inside config files, but inside the DB.
<section name="sitefinity" type="Telerik.Sitefinity.Configuration.SectionHandler, Telerik.Sitefinity" requirePermission="false" />
<sitefinityConfig storageMode="Database" />
You get this error because you are trying to install Sitefinity directly on Azure and storageMode is not database.
the Telerik team
Do you want to have your say in the Sitefinity development roadmap? Do you want to know when a feature you requested is added or when a bug fixed? Explore the Telerik Public Issue Tracking
system and vote to affect the priority of the items