“An unexpected error has occurred” : Debugging Sharepoint

Debugging SharePoint can be problematic at times, it does like to hide debugging information from you. Recently I got an error: “An unexpected error has occurred” with nothing written to log files, trace or the event log. The solution is to change a single entry in web.config, by modifying the line… <SafeMode MaxControls=“200“ CallStack=“false“… to… [...]