an-error-has-occurred-while-loading-the-reportdesigners-workbench.md

title	An Error Has Occurred While Loading the ReportDesigner's Workbench
description	Learn how to fix the error occurred while loading the ReportDesigner's Workbench when starting the Standalone designer.
type	troubleshooting
page_title	Error While Loading the ReportDesigner's Workbench
slug	an-error-has-occurred-while-loading-the-reportdesigners-workbench
position
tags	standalonedesigner,reportdesigner
ticketid	1557617
res_type	kb

Environment

Product

Progress® Telerik® Reporting

Description

The following error might be seen when starting the Standalone designer:

Fatal error in workbench. Now closing...
An error has occurred while loading the ReportDesigner's Workbench

Solution

The problem might come from a wrong configuration in the config file of the designer. To troubleshoot the described issue, attach a Trace Listener to the designer by adding the following to Telerik.ReportDesigner.exe.config to generate a log file:

<system.diagnostics>
	<trace autoflush="true" indentsize="4">
		<listeners>
			<add name="myListener" type="System.Diagnostics.TextWriterTraceListener" initializeData="c:\temp\StandaloneDesigner.LOG" />
			<remove name="Default" />
		</listeners>
	</trace>
</system.diagnostics>

Inspect the generated file for any errors. You can also send us the log file in a support ticket with the configuration file of the designer.

Another possibility for the issue is to have an invalid user.config file.

This is a file where the user preferences like connection strings, last opened files, window statuses, etc. are stored. This file can be found in the %localappdata%\Progress_Software_Corpora\ folder and there should be a subfolder called Telerik.ReportDesigner with a strong name key suffix. Inside, you should look for a folder named after the corresponding Reporting version. Here is a sample path:

Progress_Software_Corpora\Telerik.ReportDesigner.ex_StrongName_xvg2ahozm2u22wxtsw2egsvlddrzt5hj\{{site.buildversion}}\user.config

note For the older versions of Telerik Reporting the main folder may be Telerik_AD, Telerik, or Telerik_EAD.

Rename or move these files so the designer would start with the default values instead of reading them from these configuration files.