I want to know the cause of the task error: Value cannot be null. || Parameter name: stringToUnescape

[qwebnm]

I'm getting this error and I don't know why.

What is the cause?

What should I do to find the cause?

The task "KISTI_INT/cloudmesh_user.qvw" failed. Exception: || QDSMain.Exceptions.TaskFailedException: Task execution failed with errors to follow. ---> System.ArgumentNullException: 값은 null일 수 없습니다. || 매개 변수 이름: stringToUnescape || 위치: System.Uri.UnescapeDataString(String stringToUnescape) || 위치: QDSMain.DistributeTask.GetFileName(SourceDocumentFileName fileNameUrl) || 위치: QDSMain.DistributeTask.PerformExecute(IExecutingTaskResult executingTaskResult) || --- 내부 예외 스택 추적의 끝 --- || 위치: QDSMain.DistributeTask.PerformExecute(IExecutingTaskResult executingTaskResult) || 위치: QDSMain.Task.AbstractTask.TaskExecution(CurrentExecutionArgs args)

The task "KISTI_INT/cloudmesh_user.qvw" failed. Exception: || QDSMain.Exceptions.TaskFailedException: Task execution failed with errors to follow. ---> System.ArgumentNullException: Value cannot be null. || Parameter name: stringToUnescape || Location: System.Uri.UnescapeDataString(String stringToUnescape) || Location: QDSMain.DistributeTask.GetFileName(SourceDocumentFileName fileNameUrl) || Location: QDSMain.DistributeTask.PerformExecute(IExecutingTaskResult executingTaskResult) || --- End of inner exception stack trace --- || Location: QDSMain.DistributeTask.PerformExecute(IExecutingTaskResult executingTaskResult) || Location: QDSMain.Task.AbstractTask.TaskExecution(CurrentExecutionArgs args)

[Daniele_Purrone · Accepted solution]

Hi @qwebnm ,

there might be several reasons for the issue. Please check this article to start with!

Cheers!