Error.

ErrorMessage:The process cannot access the file 'D:\wwwroot\sitegroup\web_site\Log\Debug\2025-09-18-debug.txt' because it is being used by another process.
ErrorStackTrace: at Microsoft.Win32.SafeHandles.SafeFileHandle.CreateFile(String fullPath, FileMode mode, FileAccess access, FileShare share, FileOptions options) at Microsoft.Win32.SafeHandles.SafeFileHandle.Open(String fullPath, FileMode mode, FileAccess access, FileShare share, FileOptions options, Int64 preallocationSize) at System.IO.Strategies.OSFileStreamStrategy..ctor(String path, FileMode mode, FileAccess access, FileShare share, FileOptions options, Int64 preallocationSize) at AppProject.Tools.SysLog.Debug(String msg) at AppProject.UILibrary.BaseActionResult.GetPublicData() in M:\WebSites\aspnet\S_SaaS项目管理平台\SaaSProjects\StandardSiteProject\Projects\CoreLibrary\AppProject.UILibrary\BaseActionResult.cs:line 124 at AppProject.UILibrary.BaseActionResult.GetBasicData() in M:\WebSites\aspnet\S_SaaS项目管理平台\SaaSProjects\StandardSiteProject\Projects\CoreLibrary\AppProject.UILibrary\BaseActionResult.cs:line 461 at AppProject.UILibrary.Controllers.DownCenterController.Index(String bigtype, String smalltype) in M:\WebSites\aspnet\S_SaaS项目管理平台\SaaSProjects\StandardSiteProject\Projects\CoreLibrary\AppProject.UILibrary\Controllers\DownCenterController.cs:line 102
ErrorSource:System.Private.CoreLib