Unable to convert runtime connection string to its design-time equivalent

I updated to Visual Studio 2013 last week and I can no longer update my Entity Data model through the visual studio designer (.edmx file).

When I right click > update model from database I now receive this error:

An Exception of type 'System.ArgumentException' occurred while attempting to update from the database. The exception message is: 'Unable to convert runtime connection string to its design-time equivalent. Connection string: server=192.168.100.103;user id=xxx;password=xxx;database=xxx;persist security info=True'.

My connection string is as follows:

  <connectionStrings>
<add name="DbEntities" connectionString="metadata=res://*/Db.csdl|res://*/Db.ssdl|res://*/Db.msl;provider=MySql.Data.MySqlClient;provider connection string=&quot;server=192.168.100.103;user id=xxx;password=xxx;database=xxx;persist security info=True&quot;" providerName="System.Data.EntityClient" />

The process still works fine in Visual Studio 2012