Visual Basic Reference
Object was unloaded (Error 364)
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A form was unloaded from its own Form_Load procedure. This error has the following cause and solution:
A form with an Unload statement in its Form_Load procedure was implicitly loaded. For example, the following will implicitly load Form2 if it isn't already loaded:
Form2.BackColor = Form1.BackColor
.Remove the Unload statement from the Form_Load procedure.