Error following SQL Server 2014 install

I recently installed SQL Server 2014.  Afterwards I found that while running a query or creating a diagram the following message appears. 

'Microsoft.Practices.EnterpriseLibrary.Configuration.Design.VisualStudioIntegration2010.VisualStudioIntegration2010Package, Microsoft.Practices.EnterpriseLibrary.Configuration.Design.VisualStudioIntegration2010, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null' package did not load correctly.

The problem may have been caused by a configuration change or by the installation of another extension. You can get more information by running the application together with the /log parameter on the command line, and then examining the file 'C:\Users\XXXXXX\AppData\Roaming\Microsoft\AppEnv\10.0\ActivityLog.xml'.

I’ve found that database diagrams do not display all table relationships and am wondering whether this is related to the error message.

I came upon a possible solution at MSDN which suggests the following:

In Programs and Features (or Add/Remove Programs), right click the Microsoft Enterprise Library 5.0 Optional Update 1 program and select change. Remove the VisualStudio2010 integration.  Then, install the EnterpriseLibrary Configuration extension from Microsoft via the Extension Manager in VS2010. This will allow you to launch the configuration editor from VS2010, but will not be installed for SSMS.

I have MicrosoftEnterprise Library 5.0 installed, but notMicrosoft Enterprise Library 5.0 Optional Update 1.  However, I have Visual Studio 2010 SP1 installed as SP1 was a prerequisite for installing SQL Server 2014.  I’m wondering whether the above suggestion actually meant this SP1 when it referred to Optional Update 1.