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I get a real troubling error every time I want to load data from a file I have saved

wheelchairmanwheelchairman ✭✭
in Questions And Answers

I adapted the DataGramSocket example just to record errors I find when runnning my code. I am using a Hololens Emulator currently and the error message I get is:-

Error found when trying to read file content for: hololens_device1.csv. > The handle with which this oplock was associated has now closed. The oplock is now broken. (Exception from HRESULT: 080070323).

My code snippet looks like this:-

static async public void load_file_content_from_permanent_store(string filename)
    {
        readfilecontent = "";
        string token = "";
        readfile = null;
        try
        {
            token = Find_FALtoken_from_accesslist_metadata(filename);
            if (token.Length == 0) return;
        }
        catch (Exception e1)
        {
            errmess = "Error found when trying to find the token for: " + filename + " " + e1.Message;
            return;
        }
        try
        {
            readfile = await StorageApplicationPermissions.FutureAccessList.GetFileAsync(token);
        }
        catch(Exception e2)
        {
           errmess = "Error found when trying to file for: " + filename + " " + e2.Message;
            return;

        }
        if (readfile == null) return;
        try
        { 
            readfilecontent = await FileIO.ReadTextAsync(readfile);
        }
        catch(Exception e3)
        {
            errmess = "Error found when trying to read file content for: " + filename + " " + e3.Message;
            return;

        }

Is there anyone out there with the expertise to work out what I am possibly doing wrong here? It use to work fine, now it doesn't.

Thanks

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