We use cookies to give you the best experience on our website. If you continue to browse, then you agree to our privacy policy and cookie policy. Image for the cookie policy date
Unfortunately, activation email could not send to your email. Please try again.
Syncfusion Feedback

The designer loader did not provide a root component but has not indicated why when opening a form

Thread ID:





151188 Feb 3,2020 11:53 AM UTC Feb 4,2020 09:17 AM UTC WinForms 1
Tags: SfForm
Ricardo Abranches
Asked On February 3, 2020 12:06 PM UTC


when I try to open a form this error appears "The designer loader did not provide a root component but has not indicated why when opening a form"
Normally closed the form and then opening it again shows.
But now it doesn't open anymore. this form is of the type "Ribbon.form"

Is there any way to try to solve the problem?
The application works without problems and compiles without error.
It is just not possible to see the form on the screen in design mode and add objects, change properties, etc.

Any help would be welcome.


Imports System.Collections.Specialized
Imports System.ComponentModel
Imports Syncfusion.Grouping
Imports Syncfusion.Windows.Forms.Grid
Imports Syncfusion.Windows.Forms.Tools

Public Class frmProcesso
    Inherits RibbonForm

Farjana Parveen Ayubb [Syncfusion]
Replied On February 4, 2020 09:17 AM UTC

Hi Ricardo, 
Thank you for using Syncfusion controls. 
This is a common and known MS Visual Studio issue. One of the ways to solve this problem is to simply delete files in the bin/debug, bin/release, obj/debug, and obj/release directories in Solution Explorer and then start debug again.  
The issue might also occur when the properties defined in the Designer.cs depend on the runtime or due to event handles or overriding methods.  
Please let us know if you need any further details on this. 
Farjana Parveen A


This post will be permanently deleted. Are you sure you want to continue?

Sorry, An error occured while processing your request. Please try again later.

Please sign in to access our forum

This page will automatically be redirected to the sign-in page in 10 seconds.

Warning Icon You are using an outdated version of Internet Explorer that may not display all features of this and other websites. Upgrade to Internet Explorer 8 or newer for a better experience.Close Icon

Live Chat Icon For mobile
Live Chat Icon