[C #] When debugging silverlight, the system always reports "a null index pointer is transferred to the placeholder program ",

[C #] When debugging silverlight, the system always reports "a null index pointer is transferred to the placeholder program ",

This is because visual studio must work with ie when debugging silverlight.

Follow these steps to set ie to the default browser of visual studio (you do not need to modify the default browser of the operating system ):

1) Right-click a. aspx page in 'solution explorer '.

2) Select 'browsing method'

3) in the dialog box, select ie and set it to the default browser.

See http://stackoverflow.com/questions/79954/visual-studio-opens-the-default-browser-instead-of-internet-explorer