The type String cannot be constructed. You must configure th

Posted by Community Admin on 05-Aug-2018 21:29

The type String cannot be constructed. You must configure the container to supply this value.

All Replies

Posted by Community Admin on 05-Oct-2010 00:00
Hi,

Keep getting this error. Just downloaded the SDK 2 and tried to run the samples.
As I had modified the C:\Program Files (x86)\Telerik\Sitefinity SDK 4.0\Samples\CS\SitefinityWebApp\App_Data\Sitefinity\Configuration\DataConfig.config to change the connectionstring I thought it had to do with; http://www.sitefinity.com/devnet/forums/sitefinity-4-x/general-discussions/taxonomymanager-error.aspx and I tried all the things mentioned in that thread. But it didn't work.

I even installed SQLExpress and did a reinstall of the SDK, tried to run it again without changing anything and got the same error.

I can work with the samples in a different site so no worries, just thought you guys might want to know.

Regards,
  Peter


Server Error in '/' Application.

The type String cannot be constructed. You must configure the container to supply this value.

Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.

Exception Details: System.InvalidOperationException: The type String cannot be constructed. You must configure the container to supply this value.

Source Error:

An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below.

Stack Trace:

[InvalidOperationException: The type String cannot be constructed. You must configure the container to supply this value.]
   Telerik.Microsoft.Practices.ObjectBuilder2.DynamicMethodConstructorStrategy.GuardTypeIsNonPrimitive(IBuilderContext context, SelectedConstructor selectedConstructor) +285
   Telerik.Microsoft.Practices.ObjectBuilder2.DynamicMethodConstructorStrategy.PreBuildUp(IBuilderContext context) +356
   Telerik.Microsoft.Practices.ObjectBuilder2.StrategyChain.ExecuteBuildUp(IBuilderContext context) +262
   Telerik.Microsoft.Practices.ObjectBuilder2.DynamicMethodBuildPlanCreatorPolicy.CreatePlan(IBuilderContext context, NamedTypeBuildKey buildKey) +187
   Telerik.Microsoft.Practices.ObjectBuilder2.BuildPlanStrategy.PreBuildUp(IBuilderContext context) +221
   Telerik.Microsoft.Practices.ObjectBuilder2.StrategyChain.ExecuteBuildUp(IBuilderContext context) +262
   Telerik.Microsoft.Practices.ObjectBuilder2.BuilderContext.NewBuildUp(NamedTypeBuildKey newBuildKey) +232
   Telerik.Microsoft.Practices.Unity.ObjectBuilder.NamedTypeDependencyResolverPolicy.Resolve(IBuilderContext context) +90
   BuildUp_Telerik.Sitefinity.Taxonomies.TaxonomyManager(IBuilderContext ) +192
   Telerik.Microsoft.Practices.ObjectBuilder2.DynamicMethodBuildPlan.BuildUp(IBuilderContext context) +42
   Telerik.Microsoft.Practices.ObjectBuilder2.BuildPlanStrategy.PreBuildUp(IBuilderContext context) +309
   Telerik.Microsoft.Practices.ObjectBuilder2.StrategyChain.ExecuteBuildUp(IBuilderContext context) +262
   Telerik.Microsoft.Practices.Unity.UnityContainer.DoBuildUp(Type t, Object existing, String name, IEnumerable`1 resolverOverrides) +377

[ResolutionFailedException: Resolution of the dependency failed, type = "Telerik.Sitefinity.Taxonomies.TaxonomyManager", name = "OpenAccessDataProvider".
Exception occurred while: while resolving.
Exception is: InvalidOperationException - The type String cannot be constructed. You must configure the container to supply this value.
-----------------------------------------------
At the time of the exception, the container was:

  Resolving Telerik.Sitefinity.Taxonomies.TaxonomyManager,OpenAccessDataProvider
  Resolving parameter "providerName" of constructor Telerik.Sitefinity.Taxonomies.TaxonomyManager(System.String providerName, System.String transactionName)
    Resolving System.String,(none)
]
   Telerik.Microsoft.Practices.Unity.UnityContainer.DoBuildUp(Type t, Object existing, String name, IEnumerable`1 resolverOverrides) +440
   Telerik.Microsoft.Practices.Unity.UnityContainer.DoBuildUp(Type t, String name, IEnumerable`1 resolverOverrides) +45
   Telerik.Microsoft.Practices.Unity.UnityContainer.Resolve(Type t, String name, ResolverOverride[] resolverOverrides) +43
   Telerik.Microsoft.Practices.Unity.UnityContainerExtensions.Resolve(IUnityContainer container, String name, ResolverOverride[] overrides) +126
   Telerik.Sitefinity.Abstractions.ObjectFactory.Resolve(String name) +109
   Telerik.Sitefinity.Data.ManagerBase`1.GetManager(String providerName, String transactionName) +323
   Telerik.Sitefinity.Data.ManagerBase`1.GetManager() +72
   Telerik.Sitefinity.Taxonomies.TaxonomyManager.GetManager() +27
   Telerik.Sitefinity.Modules.DefinitionsHelper.CreateTaxonomyLink(Guid id, String commandName, String commandArgument, WidgetBarSectionElement sidebar) +150
   Telerik.Sitefinity.Modules.GenericContent.ContentDefinitions.DefineContentBackendContentView(ConfigElement parent) +9215
   Telerik.Sitefinity.Web.UI.ContentUI.Config.ContentViewConfig.OnPropertiesLoaded() +118
   Telerik.Sitefinity.Configuration.Data.XmlConfigProvider.LoadSection(ConfigSection section, ConfigPolicyHandler policyHandler, String policyName) +182
   Telerik.Sitefinity.Configuration.ConfigSection.Initialize(ConfigProvider provider, ConfigPolicyHandler policyHandler, String policyName, Boolean singlePolicy) +251
   Telerik.Sitefinity.Configuration.ConfigSection.Initialize(ConfigProvider provider) +45
   Telerik.Sitefinity.Configuration.Config.Get() +206
   Telerik.Sitefinity.Modules.News.NewsModule.Initialize(ModuleSettings settings) +82
   Telerik.Sitefinity.Services.SystemManager.InitializeModule(ModuleSettings settings, Boolean start) +144
   Telerik.Sitefinity.Services.SystemManager.Initialize() +911
   Telerik.Sitefinity.Abstractions.Bootstrapper.RegisterRoutes(RouteCollection routes) +1703
   Telerik.Sitefinity.Abstractions.Bootstrapper.Bootstrap() +115
   Telerik.Sitefinity.Web.SitefinityHttpModule.Init(HttpApplication context) +42
   System.Web.Routing.UrlRoutingModule.System.Web.IHttpModule.Init(HttpApplication application) +10
   System.Web.HttpApplication.InitModulesCommon() +80
   System.Web.HttpApplication.InitModules() +43
   System.Web.HttpApplication.InitInternal(HttpContext context, HttpApplicationState state, MethodInfo[] handlers) +828
   System.Web.HttpApplicationFactory.GetNormalApplicationInstance(HttpContext context) +304
   System.Web.HttpApplicationFactory.GetApplicationInstance(HttpContext context) +107
   System.Web.HttpRuntime.ProcessRequestInternal(HttpWorkerRequest wr) +327


Version Information: Microsoft .NET Framework Version:4.0.30319; ASP.NET Version:4.0.30319.1
Posted by Community Admin on 06-Oct-2010 00:00
Hi j8,

Thank you for using our services.

The error you are experiencing is most probably caused by the fact that you have tried to connect the website to a blank database. Please note that in Sitefinity 4.0 we keep all configurations in ~/App_Data/Sitefinity/Configuration. When you have tried to connect to the empty database you should also delete the content of the configuration folder in order to be able to initialize the website from scratch.

Can you try to uninstall the SDK and go to the install directory and delete the project. The uninstall does not remove your projects. Then install the SDK and try to run the website as is.

Regards,
Radoslav Georgiev
the Telerik team

Check out Telerik Trainer, the state of the art learning tool for Telerik products.
Posted by Community Admin on 06-Oct-2010 00:00
Hi,

I just downloaded the SDK 2, opened the sample project, build and run. At that point I got a message indicating I didn't have SQLExpress so I tried to attach the db in SQLServer and change the connectionstring in ~/App_Data/Sitefinity/Configuration/DataConfig.config
(Remember I'm talking about the Sample Project in the SDK directory so it wasn't a blank database.)

After that the "The type String cannot be constructed ..." message appeared.

I have installed SQLExpress now and if I do a fresh install it will work, just wanted to let you know.


Thanks,
  Peter
Posted by Community Admin on 16-Oct-2010 00:00

To add to this discussion I am now also getting this error. However I am connected to what was a fully working Site, but now that I am trying to add a Silverlight widget to the mix I now get this error.

I believe it has something related to OpenAccess and a DynamicTypeBase though. The code below causes this error to occur:
Error

Server Error in '/' Application.
--------------------------------------------------------------------------------
  
ComicWidget.Models.DynamicTypeBase 
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code. 
  
Exception Details: System.TypeLoadException: ComicWidget.Models.DynamicTypeBase
  
Source Error: 
  
An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below.  
  
Stack Trace: 
  
  
[TypeLoadException: ComicWidget.Models.DynamicTypeBase]
   Telerik.OpenAccess.RT.ClassHelper.MakeClass(String clsName, Type t) +63
   Telerik.OpenAccess.RT.ClassHelper.forName(String clsName) +335
   OpenAccessRuntime.util.classhelper.dotnet.ClassHelperImpl.classForName(String clazz, Boolean validate, Object loader) +34
   OpenAccessRuntime.metadata.MetaDataBuilder.loadClass(String name) +55
   OpenAccessRuntime.metadata.MetaDataBuilder.createMetaData(PackageMetaData pmd, DataObjectsClass dataObjectsCls, Boolean quietParam) +1071
  
[OpenAccessException: The persistence-capable-superclass named 'ComicWidget.Models.DynamicTypeBase' was not found.
--> (Database.Get parameter):mapping-id=mssqlMapping/namespace[ComicWidget.Models]/class[SitefinityComic]]
   DynamicModule.ns.Wrapped_OpenAccessTaxonomyProvider_a78f56e10a5b4c5a98372130c2dae469.Initialize(String providerName, NameValueCollection config, Type managerType) +283
   Telerik.Sitefinity.Data.ManagerBase`1.InstantiateProvider(DataProviderSettings providerSettings, Type providerType, ExceptionPolicyName policy, ManagerBase`1 manager) +2241
   Telerik.Sitefinity.Data.ManagerBase`1.InstantiateProvider(DataProviderSettings providerSettings, ExceptionPolicyName policy, ManagerBase`1 manager) +117
   Telerik.Sitefinity.Data.ManagerBase`1.SetProvider(String providerName, String transactionName) +426
   Telerik.Sitefinity.Data.ManagerBase`1..ctor(String providerName, String transactionName) +240
   Telerik.Sitefinity.Data.ManagerBase`1..ctor() +37
   Telerik.Sitefinity.Taxonomies.TaxonomyManager..ctor() +28
  
[TargetInvocationException: Exception has been thrown by the target of an invocation.]
   System.RuntimeTypeHandle.CreateInstance(RuntimeType type, Boolean publicOnly, Boolean noCheck, Boolean& canBeCached, RuntimeMethodHandleInternal& ctor, Boolean& bNeedSecurityCheck) +0
   System.RuntimeType.CreateInstanceSlow(Boolean publicOnly, Boolean skipCheckThis, Boolean fillCache) +98
   System.RuntimeType.CreateInstanceDefaultCtor(Boolean publicOnly, Boolean skipVisibilityChecks, Boolean skipCheckThis, Boolean fillCache) +241
   System.Activator.CreateInstance() +103
   Telerik.Sitefinity.Data.ManagerBase`1.GetManager(String providerName, String transactionName) +184
   Telerik.Sitefinity.Data.ManagerBase`1.GetManager() +72
   Telerik.Sitefinity.Taxonomies.TaxonomyManager.GetManager() +27
   Telerik.Sitefinity.Modules.DefinitionsHelper.CreateTaxonomyLink(Guid id, String commandName, String commandArgument, WidgetBarSectionElement sidebar) +150
   Telerik.Sitefinity.Modules.GenericContent.ContentDefinitions.DefineContentBackendContentView(ConfigElement parent) +9215
   Telerik.Sitefinity.Web.UI.ContentUI.Config.ContentViewConfig.OnPropertiesLoaded() +118
   Telerik.Sitefinity.Configuration.Data.XmlConfigProvider.LoadSection(ConfigSection section, ConfigPolicyHandler policyHandler, String policyName) +182
   Telerik.Sitefinity.Configuration.ConfigSection.Initialize(ConfigProvider provider, ConfigPolicyHandler policyHandler, String policyName, Boolean singlePolicy) +251
   Telerik.Sitefinity.Configuration.ConfigSection.Initialize(ConfigProvider provider) +45
   Telerik.Sitefinity.Configuration.Config.Get() +206
   Telerik.Sitefinity.Modules.News.NewsModule.Initialize(ModuleSettings settings) +82
   Telerik.Sitefinity.Services.SystemManager.InitializeModule(ModuleSettings settings, Boolean start) +144
   Telerik.Sitefinity.Services.SystemManager.Initialize() +911
   Telerik.Sitefinity.Abstractions.Bootstrapper.RegisterRoutes(RouteCollection routes) +1703
   Telerik.Sitefinity.Abstractions.Bootstrapper.Bootstrap() +115
   Telerik.Sitefinity.Web.SitefinityHttpModule.Init(HttpApplication context) +42
   System.Web.Routing.UrlRoutingModule.System.Web.IHttpModule.Init(HttpApplication application) +10
   System.Web.HttpApplication.InitModulesCommon() +80
   System.Web.HttpApplication.InitModules() +43
   System.Web.HttpApplication.InitInternal(HttpContext context, HttpApplicationState state, MethodInfo[] handlers) +828
   System.Web.HttpApplicationFactory.GetNormalApplicationInstance(HttpContext context) +304
   System.Web.HttpApplicationFactory.GetApplicationInstance(HttpContext context) +107
   System.Web.HttpRuntime.ProcessRequestInternal(HttpWorkerRequest wr) +327
  
   
  
  
--------------------------------------------------------------------------------
Version Information: Microsoft .NET Framework Version:4.0.30319; ASP.NET Version:4.0.30319.1

Code
using ComicWidget.Models;
using System;
using System.Web;
using Telerik.Sitefinity;
using Telerik.Sitefinity.Metadata.Model;
using Telerik.Sitefinity.Web.UI;
  
namespace ComicWidget
    public class Comic : SimpleView
    
        /// <summary>
        /// Initializes the controls part of your template.
        /// </summary>
        /// <param name="container">Template container for all controls.</param>
        /// <remarks>
        /// Initialize your controls in this method. Do not override CreateChildControls method.
        /// </remarks>
        protected override void InitializeControls(GenericContainer container)
        
            CreateComicMetaTable();
        
  
        protected override string LayoutTemplateName
        
            get return "ComicWidget.Resources.Views.ComicTemplate.ascx";
        
        private string GetAuthorityUrl()
        
            var authority = this.Page.Request.Url.GetLeftPart(UriPartial.Authority);
            return VirtualPathUtility.RemoveTrailingSlash(authority);
        
  
        private void CreateComicMetaTable()
        
            App.WorkWith()
       .DynamicData()
       .Type()
       .CreateNew("SitefinityComic", "ComicWidget.Models")
       .Do(dt => dt.DatabaseInheritance = DatabaseInheritanceType.horizontal)
       .Field()
            .CreateNew("Description", typeof(string))
            .Done()
       .Field()
            .CreateNew("URL", typeof(string))
            .Done()
       .Field()
            .CreateNew("ImageExtension", typeof(string))
            .Done()
       .Field()
            .CreateNew("Prefix", typeof(string))
            .Done()
       .Field()
            .CreateNew("PublishedDay", typeof(string))
            .Done()
        .Field()
            .CreateNew("Name", typeof(string))
            .Done()
       .SaveChanges(true);
        
  
        /// <summary>
        /// Ensures that the Comic model has the required metafields.
        /// </summary>
        /// <param name="restart">if set to <c>true</c> [restart].</param>
        private void EnsureMetaFields(ref bool restart)
        
            bool changedDB = false;
  
            App.WorkWith().DynamicData().Type(typeof(SitefinityComic))
                .Field().TryCreateNew("Description", typeof(string), ref changedDB).Done()
                .Field().TryCreateNew("URL", typeof(string), ref changedDB).Done()
                .Field().TryCreateNew("ImageExtension", typeof(string), ref changedDB).Done()
                .Field().TryCreateNew("Prefix", typeof(string), ref changedDB).Done()
                .Field().TryCreateNew("PublishedDay", typeof(string), ref changedDB).Done()
                .Field().TryCreateNew("Name", typeof(string), ref changedDB).SaveChanges(true);
  
            if (changedDB)
            
                restart = changedDB;
            
        
  
        //private void CreateDefaultData()
        //
        //    using (var fluent = App.WorkWith())
        //   
        //        //fluent.DynamicData()
        //   
        //
    

However if I comment out the EnsureMetaFields method I get the "The type String cannot be constructed. You must configure the container to supply this value." error.

Any examples on how to use custom DynamicTypes would probably help this situation as I believe I am my own worse enemy at this point.

Thanks.
Posted by Community Admin on 18-Oct-2010 00:00
Hello Garry Clark,

Can you please try to explain a little bit the code in your SimpleView control? What I am failing to understand is why you are creating new Dynamic types every time the control is initialized. The problem you are experiencing is that you have created a dynamic type which uses a name space which is different than Telerik.Sitefinity.DynamicTypes.Model. Currently dynamic types can only belong to this name space. To fix the problem you will have to open your database table sf_meta_types and either change the name space for the row with class name SitefinityComic or delete the row.

Right now the Dynamic Types API is still in progress and it would be really helpfull if you could explain what you need to do so that we can provide some guidance.

Kind regards,
Radoslav Georgiev
the Telerik team

Check out Telerik Trainer, the state of the art learning tool for Telerik products.
Posted by Community Admin on 24-Aug-2011 00:00
Hello Admin,

    I have Created my Website in Sitefinity 4.1.1395 ... When im running my website im getting error as The type String cannot be constructed. You must configure the container to supply this value.
    I have attached screenshots ... Please tel me the Solution ...

Thanks & regards
Anu.

Posted by Community Admin on 26-Aug-2011 00:00
Hello Anu,

it seems that the screenchots did not go through. Can you try sending them again? Also please let us know what have been the latest changes to the project, before you started experiencing the error.

Regards,
Radoslav Georgiev
the Telerik team

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