Mindstorms EV3 PC application won't load

Question

I Installed Mindstorms EV3 application on MS Windows 7 Home Premium v6.1 (Build 7601: Service Pack 1) and I keep getting the same error message when launching.

A white window pops up with the following:

LEGO MINDSTORMS EV3 has detected a problem during the application launch. Press OK to close the application and get more information about fixing the problem.

There is only a single "OK" button to press and it then launches the web browser to a Lego page link that cannot be found.

I have checked with Lego tech support and they suggested the issue was with MS Silverlight which I uninstalled and reinstalled along with the EV3 application... all to no avail.

Any ideas?

Answer 1

I had this problem with windows 10. Installing the latest silverlight from here: https://www.microsoft.com/getsilverlight/Get-Started/Install/Default.aspx did the trick

Answer 2

I just had this same error happen now (but was having no problems a few months ago). So I searched for the latest version of Silverlight I could find and found version 5.1.50907.0 at download.cnet.com and installed and now EV3 is working.

Here's the link: https://download.cnet.com/microsoft-silverlight-64-bit/3000-2378_4-75884713.html?ex=WLS-1348.3

Answer 3

Try this guide I found in the LEGO Education Website: https://education.lego.com/en-us/support/mindstorms-ev3/software-launch-issues

Answer 4

If the program opens but loading appears the whole time, just open a new program and save it... and open it again, it will work.

This is a glitch.

Answer 5

You will need Exit the application then remove the folder C:\Users\LegoLeague\AppData\Local\LEGO\MINDSTORMS EV3 Then restart the EV3 Mindstorm application