'Linq' does not exist in the namespace 'Devart.Data.PostgreSQL'

[jantarang]

I found this error in the class that create from Entity Developer tool, how can I fix this issue

[ProviderAttribute(typeof(Devart.Data.PostgreSql.Linq.Provider.PgSqlDataProvider))]

Code: Select all

using System;
using Devart.Data.Linq;
using Devart.Data.Linq.Mapping;
using System.Data;
using System.ComponentModel;
using System.Collections.Generic;
using System.Reflection;
using System.Linq;
using System.Linq.Expressions;

namespace POSTCATSVdbContext
{

    [DatabaseAttribute(Name = "POSTCATSVdb")]
    [ProviderAttribute(typeof(Devart.Data.PostgreSql.Linq.Provider.PgSqlDataProvider))]
    public partial class _PcsvDbContext : Devart.Data.Linq.DataContext

[jantarang]

Yesterday I purchase Standard Edition, how can i upgrade to Professional Edition.

[Shalex]

Please uninstall Standard Edition and install Professional Edition downloaded from Customer Portal.