Fail to add ADO.NET element

0

I just downloaded the Visual Studio 2017 , I have XAMPP also in the latest version, and so does the Workbench 6.3 . Also lower the Connector/Net 8.0.11 to make the connection.

But at the time I try to add an ADO.NET entity data model I get an error that does not let me do anything.

Here I choose the ADO.NET element.  I put the model.  I make the connection to the database, which when testing the connection tells me it is successful.  And in the end I get it's fault. This is what it says in the flaw, I really do not know what else to do, if I have an erroneous version of the connector or something.

Exception:

  

System.NullReferenceException: Object reference not set as   instance of an object. in   MySql.Data.MySqlClient.MySqlProviderServices.GetDbProviderManifestToken (DbConnection   connection) in   System.Data.Entity.Core.Common.DbProviderServices.GetProviderManifestToken (DbConnection   connection) in   Microsoft.Data.Entity.Design.VisualStudio.VsUtils.GetProviderManifestTokenConnected (IDbDependencyResolver   resolve, String providerInvariantName, String   providerConnectionString) in   Microsoft.Data.Entity.Design.VisualStudio.ModelWizard.Gui.WizardPageRuntimeConfig.OnDeactivate ()   in Microsoft.WizardFramework.WizardPage.Deactivate () in   Microsoft.WizardFramework.WizardForm.OnNext () in   System.Windows.Forms.Control.InvokeMarshaledCallbackDo (ThreadMethodEntry   tme) in   System.Windows.Forms.Control.InvokeMarshaledCallbackHelper (Object obj)   in System.Threading.ExecutionContext.RunInternal (ExecutionContext   executionContext, ContextCallback callback, Object state, Boolean   preserveSyncCtx) in   System.Threading.ExecutionContext.Run (ExecutionContext   executionContext, ContextCallback callback, Object state, Boolean   preserveSyncCtx) in   System.Threading.ExecutionContext.Run (ExecutionContext   executionContext, ContextCallback callback, Object state) in   System.Windows.Forms.Control.InvokeMarshaledCallback (ThreadMethodEntry   tme) in System.Windows.Forms.Control.InvokeMarshaledCallbacks ()

    
asked by Ricardo Sanchez Santos 04.05.2018 в 21:36
source

1 answer

0

Before trying to add the model, verify that you have a connection to MYSQL , when you give a new connection and configure everything, a button appears below.

    
answered by 27.08.2018 в 09:54