System.ArgumentException: Empty strings are not allowed. Parameter name: connectionString at Sitecore.Analytics.Data.DataAccess.DataAdapters.Sql.SqlServer.SqlServerDataAdapterProvider..ctor()
Recently one of my developers ran in to the following error when previewing a field of the type "Mutlilist with Search" in content editor in Sitecore 7.2: System.Reflection.TargetInvocationException: Exception has been thrown by the target of an invocation.---> System.ArgumentException: Empty strings are not allowed. Parameter name: connectionString at Sitecore.Data.SqlServer.SqlServerDataApi..ctor(String connectionString) at Sitecore.Analytics.Data.DataAccess.DataAdapters.Sql.SqlServer.SqlServerDataAdapterProvider..ctor() --- End of inner exception stack trace -- at System.RuntimeMethodHandle.InvokeMethod(Object target, Object[] arguments, Signature sig, Boolean constructor) at System.Reflection.RuntimeConstructorInfo.Invoke(BindingFlags invokeAttr, Binder binder, Object[] parameters, CultureInfo culture) at Sitecore.Reflection.ReflectionUtil.CreateObject(Type type, Object[] parameters) at Sitecore.Configuration.Factory.CreateFromTypeName(XmlNode configNode, String[]...