Try catch with Exception message

Public Class Form1

    Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
        Try
            Image.FromFile(Application.StartupPath & "/image.png")
        Catch ex As Exception
            MsgBox("Cannot find the image from this path:" & vbNewLine & ex.Message)
        End Try
    End Sub
End Class

'The Ex.message gives you more details on the error, in this instance the path it could not find.