No assertions found on MyUI

Summary

For the current issue of the No assertions found on VandalWeb, this is a quick tutorial of the workarounds.

Body

Useful for: Students, Staff, Faculty, Alumni, Affiliates

Overview

Example

Change Browsers

Open in Private Mode

Clear Cache and Cookies

This tutorial applies to the following operating system(s):

 Windows

 Macintosh

Request website assistance

 

Example

When receiving the No Assertions Found error on MyUI, follow the steps in this article to resolve this issue.

Screenshot of no assertions found error in browser

Change Browsers

The easiest work-around is to use a different browser for the time being. The most common browsers for Macintosh and Windows are Firefox and Chrome. Macintosh also has Safari, and Windows has Edge and Internet Explorer.

Open in Private Mode

The second easiest work-around is to open your browsers Private Mode. This will allow the browser to operate without any of the current cookies. The biggest downside of this option is that you will have to authenticate with DUO every time that you use this method.

To use Private Mode with Firefox, Cntl+Shift+P (Windows) or Cmd+Shift+P (Macintosh)Screenshot of a Firefox browser in private browsing mode.

To use Private Mode with Chrome, Cntl+Shift+N (Windows) or Cmd+Shift+N (Macintosh)
Screenshot of a Chrome browser in private browsing mode.

To use Private Mode with Edge, Cntl+Shift+P (Windows)
Screenshot of an Edge browser in private browsing mode.

To use Private Mode with Safari, Cmd+Shift+N (Macintosh)
Screenshot of a Safari browser in private browsing mode.

To use Private Mode with Internet Explorer, Cntl+Shift+P (Windows)
Screenshot of a Internet Explorer browser in private browsing mode.

Clear Cache and Cookies

The last option that you should do is clear cache and cookies on your browser. The biggest downside is some data that helps your browser run faster will be deleted, and if you have ever clicked a remember me, that will go away as well.

 

Firefox

1Select "Options"

With Firefox open, click on the three bars in the upper right hand corner, and click options.

Screenshot of the bar menu with the mouse hovering over "options."

2Click "Privacy & Security"

Navigate to and click on Privacy & Security.

Screenshot of the privacy & security option under the lefthand menu.

3Select "Clear History"

Scroll down to History, and click on clear your recent history.

Screenshot of the History section and options.

4Select the Correct Time Range

Change the time range to Everything. Make sure all the boxes shown are checked.

Screenshot of "Everything" selected under "Time range to clear:" under "Clear recent history".

5Select "Clear Now"

Click Clear Now. There is no notification that it worked, but try pulling up MyUI. If it works, then clearing the cache and cookies worked.

Screenshot of a cursor hovering over the "Clear Now" button under "Clear All History".

Back to Clear Cache and Cookies

 

Chrome

1Navigate to History

With Chrome open, navigate to the three dots in the upper right hand corner. Hover over History, and click on History in the revealed tab. You can also press Cntl+H on a Windows machine.

Screenshot of Step 1 directions for chrome.

2Select "Clear Browsing Data"

Click on Clear browsing data.

Screenshot of Step 2 directions for chrome.

3Change Time Range

Change the time to All Time.

Screenshot of Step 3 directions for chrome.

4Select "Clear Data"

Click Clear Data. There is no notification that it worked, but try pulling up MyUI. If it works, then clearing the cache and cookies worked.

Screenshot of Step 4 directions for chrome.

Back to Clear Cache and Cookies

 

Edge

1Navigate to Settings

With Edge open, navigate to the three dots in the upper right hand corner. Click on Settings at the bottom of the menu.

Screenshot of Step 1 directions for Edge.

2Click on "Choose What to Clear"

Move down to Clear browsing data, and click on Choose what to clear

Screenshot of Step 2 directions for Edge.

3Select "Clear"

Click Clear. There is no notification that it worked, but try pulling up MyUI. If it works, then clearing the cache and cookies worked.

Screenshot of Step 3 directions for Edge.

Back to Overview

 

Safari

1Navigate to "Preferences"

With Safari open, click on Safari and then Preferences (or Cmd+,).

Screenshot of Step 1 directions for Safari.

2Go to Privacy Tab

Navigate to the Privacy tab and click Manage Website Data...

Screenshot of Step 2 directions for Safari.

3Click "Remove All"

Click Remove All.

Screenshot of Step 3 directions for Safari.

4Click "Remove Now"

Select the blue "Remove Now" button.

Screenshot of Step 4 directions for Safari.

5Notice Cleared Screen

If you see this screen, you have successfully cleared your cache and cookies, and will be able to use MyUI.

Screenshot of Step 5 directions for Safari.

Back to Clear Cache and Cookies

 

Internet Explorer

1Navigate to Settings

With Internet Explorer open, navigate to the gear in the upper right hand corner.

Screenshot of Step 1 directions for Internet Explorer.

2Navigate to "Delete Browsing History"

Go down to Safety, and when the pop up menu appears, click on Delete browsing history. Alternatively, you can just hit Ctrl+Alt+Delete.

Screenshot of Step 2 directions for Internet Explorer.

3Ensure Boxes are Checked

Make sure the selected boxes are checked, and then click Delete.

Screenshot of Step 3 directions for Internet Explorer.

Back to Clear Cache and Cookies

Details

Details

Article ID: 430
Created
Thu 4/19/18 1:31 PM
Modified
Tue 7/1/25 12:06 PM