[Firebird-net-provider] Entity Framework woes (cannot update model from database)

[Joseph M. <jo...@jm...>]

When I try to do "Update model from database", I get the following error:

An exception of type
'Microsoft.VSDesigner.Data.Local.ConnectionStringConverterServiceException'
occurred while attempting to update from the database. The exception
message is: ''.

I searched this error, and I find a reply from Jiri from about a year ago
that says, "DDEX not installed correctly."

I then performed the following steps:
1) Uninstalled the Firebird DDEX provider and the Firebird ADO.Net provider
2) Replaced machine.config in the following folders with the
machine.config.default file:
C:\Windows\Microsoft.NET\Framework\v4.0.30319\Config
C:\Windows\Microsoft.NET\Framework64\v4.0.30319\Config
3) Reinstalled ADO.NET provider from NETProvider-4.1.0.0.msi
4) Reinstalled DDEX provider from DDEXProvider-3.0.1.0.msi

However, I still get the same error.  I can open the .EDMX file and view
the entities, but I cannot update the model from the database.

Here is my connection string:
metadata=res://*/TRS11Model.csdl|res://*/TRS11Model.ssdl|res://*/TRS11Model.msl;provider=FirebirdSql.Data.FirebirdClient;provider
connection string='initial catalog="C:\Program Files
(x86)\TRS11\Data\DATA1100.FDB";user id=sysdba;password=masterkey;data
source=localhost'

The database path, userid, and password are all correct.

Does this still sound like an issue with DDEX not being installed correctly?
If so, what else should I do to install it correctly, if my above steps are
not sufficient.

-Joe