Message in Korean (한국어)
AsyncCallback은 'IsCompleted = false'로 표시된 IAsyncResult로 호출되었습니다. 비동기 작업이 완료되기 전까지는 콜백을 호출하지 않아야 합니다.
Unlocalized message
AsyncCallback was invoked with an IAsyncResult which was marked 'IsCompleted = false'. The callback must not be invoked until the asynchronous operation has completed.
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