DNN 除錯神器 DNNDebug.aspx：快速定位模組載入錯誤與編譯異常

有時 DNN 程式錯誤提示未指出具體錯誤位置，斷點追蹤也不知何處插入，除錯只能靠猜測。例錯誤提示：

Error: Edit Content is currently unavailable.
DotNetNuke.Services.Exceptions.ModuleLoadException:
External component has thrown an exception. ---> System.Web.HttpCompileException: External component has thrown an exception.
at System.Web.Compilation.AssemblyBuilder.Compile()
at System.Web.Compilation.BuildProvidersCompiler.PerformBuild()
at System.Web.Compilation.BuildManager.CompileWebFile(VirtualPath virtualPath)
at System.Web.Compilation.BuildManager.GetVPathBuildResultInternal(VirtualPath virtualPath, Boolean noBuild, Boolean allowCrossApp, Boolean allowBuildInPrecompile)
at System.Web.Compilation.BuildManager.GetVPathBuildResultWithNoAssert(HttpContext context, VirtualPath virtualPath, Boolean noBuild, Boolean allowCrossApp, Boolean allowBuildInPrecompile)
at System.Web.UI.TemplateControl.LoadControl(VirtualPath virtualPath)
at System.Web.UI.TemplateControl.LoadControl(String virtualPath)
at DotNetNuke.UI.Skins.Skin.InjectModule(Control objPane, ModuleInfo objModule, PortalSettings PortalSettings) in
E:\Development\DotNetNuke\InstallArea\DotNetNuke_04.08.03_Source\Library\Components\Skins\Skin.vb:line 492
--- End of inner exception stack trace ---

使用此檔案可清楚看到問題所在：

1. 下載 DNNDebug.rar` 解壓得 DNNDebug.aspx`
2. 放入 DotNetNuke 網站根目錄
3. 瀏覽器訪問（如：https://localhost/Dotnetnuke/DNNDebug.aspx）
4. 輸入載入出錯 Web control 位址（如：~/DesktopModules/Feedback/Feedback.ascx）
5. 若解決大問題可郵件感謝作者 Nik