TypeLoadException after upgrade to 1.6

[DotCat1985]

After upgrading OrchardCore to 1.6 in my solution and launching the CMS, I get TypeLoadException (see the details below).

TypeLoadException: Method 'RemovingAsync' in type 'OrchardCore.Search.Lucene.LuceneIndexInitializerService' from assembly 'OrchardCore.Search.Lucene, Version=1.5.0.0, Culture=neutral, PublicKeyToken=null' does not have an implementation

System.Reflection.RuntimeAssembly.GetExportedTypes()
OrchardCore.Environment.Extensions.ExtensionManager+<>c__DisplayClass33_0.b__0(Module module)
OrchardCore.Modules.EnumerableExtensions+<>c__DisplayClass0_1+<b__1>d.MoveNext()
OrchardCore.Environment.Extensions.ExtensionManager.EnsureInitializedAsync()
OrchardCore.Environment.Extensions.ExtensionManager.LoadFeaturesAsync()
OrchardCore.Environment.Shell.ShellHost.PreCreateAndRegisterShellsAsync()
OrchardCore.Environment.Shell.ShellHost.InitializeAsync()
OrchardCore.Modules.ModularTenantContainerMiddleware.Invoke(HttpContext httpContext)
Microsoft.AspNetCore.Localization.RequestLocalizationMiddleware.Invoke(HttpContext context)
Microsoft.AspNetCore.Diagnostics.DeveloperExceptionPageMiddlewareImpl.Invoke(HttpContext context)