C# Argument 'picture' must be a picture that can be used as an Icon

I had this error recently. Some recommendations:

• make sure the icon is square (16x16, 32x32)
• try saving it to a PNG and using this free service for conversion : http://www.convertico.com/

We have an application that works fine on 99% of our computers, but in one laptop it pops out this error.

It looks like our issue is that the laptop user set the screen text/image size to 150%. This could cause otherwise working images no longer working. We will see whether this works.

UPDATE

A commenter seems to have the same problem. And yes, we resolved this problem by setting the screen text size to less than 150%.

After a second restart and then opening and re-saving the .ico myself in Gimp, then I was able to import it without any errors. Not too sure what caused this problem but it was just a freak error.