随机“virtualPath”错误 - Asp.Net应用程序

The full error is - "Value cannot be null. Parameter name: virtualPath". This is occurring in our QA and Training environments (Win 2003 Server & IIS6) but of course defies recreation in a debugger. To make matters worse, despite a reasonable global error handler, no stack trace accompanies the error and nothing is written to the event log. The app is a large fully globalized Asp.Net (VB) web application running under the 2.0 Framework. It uses the usual "App_LocalResources" structure for resx files and to date has performed quite well. There are several places in the app where code like this is used: The full error is - "Value cannot be null. Para