SharePoint error: “Cannot import Web Part”

Question

I have a web part that I\'ve developed, and if I manually install the web part it is fine.

However when I have packaged the web part following the instructions on this w

Answer 1

I had a problem very similar to this, but Guids weren't the problem: my webpart didn't have the CLSCompliannt attribute set to false. Like so:

namespace MyNamespace
{

    [CLSCompliant(false)]
    [Guid("...")]
    public class MyWidget : MyWebPartBaseClass
    {

    }
}