Global Page Error

Inner Exception Type: System.IO.IOException
Inner Exception: The process cannot access the file 'D:\HostingSpaces\mediaforest\mediaforest.ro\wwwroot\App_Data\WriteLines23.txt' because it is being used by another process.
Inner Source: mscorlib
Inner Stack Trace:
at System.IO.__Error.WinIOError(Int32 errorCode, String maybeFullPath) at System.IO.FileStream.Init(String path, FileMode mode, FileAccess access, Int32 rights, Boolean useRights, FileShare share, Int32 bufferSize, FileOptions options, SECURITY_ATTRIBUTES secAttrs, String msgPath, Boolean bFromProxy, Boolean useLongPath, Boolean checkHost) at System.IO.FileStream..ctor(String path, FileMode mode, FileAccess access, FileShare share, Int32 bufferSize, FileOptions options, String msgPath, Boolean bFromProxy, Boolean useLongPath, Boolean checkHost) at System.IO.StreamWriter.CreateFile(String path, Boolean append, Boolean checkHost) at System.IO.StreamWriter..ctor(String path, Boolean append, Encoding encoding, Int32 bufferSize, Boolean checkHost) at System.IO.StreamWriter..ctor(String path, Boolean append, Encoding encoding) at System.IO.File.WriteAllLines(String path, String[] contents) at NTTPLG.GetPlaylist(String& error, String& perf_counters, String post_query_sql, String Region, String LocalSongIdentifier, Boolean bHideDollarInfo, Boolean bExcludeCommercials, String FilterTracks, String Channel, String ChannelType, String StartTime, String EndTime, String HoursList, String BaseTime, String ReportPeriod, String Artist, String SongTitle, String GroupBy, String GroupByMaxRecords) at NTTPLG.GetRemoteDataTable(String csv_url, String outer_sql_query, String& error, String& perf_counters) at TopOfRegionUserControl.Page_Load(Object sender, EventArgs e) at System.Web.UI.Control.OnLoad(EventArgs e) at System.Web.UI.Control.LoadRecursive() at System.Web.UI.Control.LoadRecursive() at System.Web.UI.BasePartialCachingControl.LoadRecursive() at System.Web.UI.Control.LoadRecursive() at System.Web.UI.Control.LoadRecursive() at System.Web.UI.Control.LoadRecursive() at System.Web.UI.Control.LoadRecursive() at System.Web.UI.Control.LoadRecursive() at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)
Exception Type: System.Web.HttpUnhandledException
Exception: Exception of type 'System.Web.HttpUnhandledException' was thrown.
Stack Trace:
at System.Web.UI.Page.HandleError(Exception e) at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) at System.Web.UI.Page.ProcessRequest(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) at System.Web.UI.Page.ProcessRequest() at System.Web.UI.Page.ProcessRequest(HttpContext context) at System.Web.HttpApplication.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() at System.Web.HttpApplication.ExecuteStepImpl(IExecutionStep step) at System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously)
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