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I am integrating update 1 of Sitecore 8.2. with WFFM and facing below error:

Could not create instance of the Sitecore.Forms.Core.Handlers.FormDataHandler class.

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.Exception: Could not create instance of the Sitecore.Forms.Core.Handlers.FormDataHandler class.

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:

[Exception: Could not create instance of the Sitecore.Forms.Core.Handlers.FormDataHandler class.] Sitecore.WFFM.Abstractions.Dependencies.DependenciesManager.Resolve(String path) +239 Sitecore.Form.Core.Ascx.Controls.SimpleForm..ctor() +23 Sitecore.Form.Web.UI.Controls.SitecoreSimpleForm..ctor(Item item) +22 Sitecore.Form.Core.Renderings.FormRender.OnInit(EventArgs e) +412 System.Web.UI.Control.InitRecursive(Control namingContainer) +186 System.Web.UI.Control.InitRecursive(Control namingContainer) +291 System.Web.UI.Control.InitRecursive(Control namingContainer) +291 System.Web.UI.Control.InitRecursive(Control namingContainer) +291 System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +2098

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If your working with Sitecore 8.2 your most likely building your pages in MVC.

Make sure you're not attempting to place the older "Web Forms" based WFFM control into an MVC page.

I recall getting a similar error after I made that mistake during installation testing.

Sitecore.Form.Core.Ascx.Controls.SimpleForm..ctor()

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