SharePoint 2007 Custom Page Error

I have created a custom aspx page and deploy into \12\TEMPLATE\LAYOUTS fol开发者_JAVA技巧der,

I trying to access the page via url e.g: http://sharepoint2007/sites/mySite/_layouts/DocLibrary.aspx,

then I hit "Unknown Error" in the page.

But it work fine when I "View in Browser" (local host) via Visual Studio.

The environment is in MOSS 2007, am I missing start some services? Please help...

Thank you.

Temporarily change the web.config file so you can see the true error.

See:

• SharePoint - An unexpected error has occurred.
• Sharepoint errors
• An unexpected error has occurred.
• Sharepoint “Unknown Error” debugging - but can't turn on CallStack… ??