Veeam Support Knowledge Base
"The given key was not present in the dictionary" error while opening nworks UI

"The given key was not present in the dictionary" error while opening nworks UI

KB ID:	1309
Product:	Veeam Management Pack for Microsoft System Center
Version:	5.x
Published:	2011-10-20
Last Modified:	2020-08-28

By subscribing, you are agreeing to have your personal information managed in accordance with the terms of Veeam's Privacy Notice.

Cheers for trusting us with the spot in your mailbox!

Now you’re less likely to miss what’s been brewing in our knowledge base with this weekly digest

Oops! Something went wrong.

Please try again later.

Challenge

When opening nworks UI, the following error occurs:

"The given key was not present in the dictionary"

Cause

The maindb.xml file is corrupted for some reason.

Solution

It is necessary to remove the "maindb.xml" file in the following way:

Locate and backup file "C:\Documents and Settings\All Users\Application Data\nworks\Management Center\maindb.xml" (for Win 2008 the location is "C:\ProgramData\nworks\Management Center”)
Stop nworks Enterprise Manager (Management Center) service
Delete file "C:\Documents and Settings\All Users\Application Data\nworks\Management Center\maindb.xml" (for Win 2008 the location is "C:\ProgramData\nworks\Management Center”)
Start nworks Enterprise Manager (Management Center) service

Once the service is started again, "maindb.xml" will be re-created.

NOTE: Removing maindb.xml file removes all the vCenter connection configuration, each VEM server advanced property customization and VEM server ESX cluster assignments.

To submit feedback regarding this article, please click this link: Send Article Feedback
To report a typo on this page, highlight the typo with your mouse and press CTRL + Enter.

Spelling error in text

Thank you!

Your feedback has been received and will be reviewed.

Oops! Something went wrong.

Please try again later.

You have selected too large block!

Please try select less.

KB Feedback/Suggestion

This form is only for KB Feedback/Suggestions, if you need help with the software open a support case

Product

Topic

Description

By submitting, you are agreeing to have your personal information managed in accordance with the terms of Veeam's Privacy Notice.

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

Verify your email to continue your product download

We've sent a verification code to:

An email with a verification code was just sent to

Didn't receive the code? Click to resend in sec

Didn't receive the code? Click to resend

Thank you!

Your feedback has been received and will be reviewed.

Oops! Something went wrong.

Please try again later.