the SPContentDatabase.ConcurrentSiteUpgradeSessionLimit is exceeded. The SPSite has been added to the database's upgrade queue and unless upgraded earlier by a different PowerShell or UI session will be upgraded automatically by the Upgrade timer job.
The Solution with Id '{0}' is trying to install Version '{1}' of Entity (External Content Type) with Name '{2}' in Namespace ...
The Solution with Id '{0}' requested Version '{1}' of Entity (External Content Type) with Name '{2}' in Namespace '{3}'. ...
The source and destination site collections are in the same content database. They must be in separate content databases. ...
The source control operation on "%1!-.90s!" can't complete because the file is currently being edited by %2!.40s!. Try again ...
the SPContentDatabase.ConcurrentSiteUpgradeSessionLimit is exceeded. The SPSite has been added to the database's upgrade ...
The SPDisconnectWebParts method cannot be called after connections have already been activated (in WebPartManager.PreRender). ...
The specified application identifier |0 cannot be created. The server may not be associated with an application identifier ...
The specified certificate does not have a subject name. The certificate used for Service Authentication must have a valid ...
The specified content type is not supported. The set of supported types is available from the new menu for each location ...