I want to create bitmap dynamically. I called bmpId = Bitmap::dynamicBitmapCreate(800, 480, Bitmap::RGB565); I found bmpId is 0xffff.and then call Bitmap::cacheGetAddress(bmpId);system will dead loop in Bitmap::cacheGetAddress(bmpId);

I check the log, it will pop this error:System.ArgumentException: 已添加了具有相�?�键的项。(An item with the same key has already been added)  在 System.ThrowHelper.ThrowArgumentException(ExceptionResource resource)  在 System.Collections.Generic.Dictionary`2.Ins...