An exception of type 'System.IO.FileNotFoundException'

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Hi I ran the build it was fine, but when i try to test in the emulator it throws an excetion stating

this "An exception of type 'System.IO.FileNotFoundException' occurred in mscorlib.ni.dll but

was not handled in user code" what does this mean.
I have already 366 Devotion.json in MyDevotions folder located in my project
xaml.cs

C#

public partial class MainPage : PhoneApplicationPage
    {

        private List<devotion> devotions;

        // Constructor
        public MainPage()
        {
            InitializeComponent();

            // Sample code to localize the ApplicationBar
            //BuildLocalizedApplicationBar();

            // as this will be expensive to populate
            // you only want to do it once when the app starts
            devotions = new List<devotion>();
            AddDevotions();
        }

        protected override void OnNavigatedTo(NavigationEventArgs e)
        {
            DateTime dt = DateTime.Now;
            int month = dt.Month;
            int year = dt.Year;
            int index;

            if (DateTime.IsLeapYear(year) || (month <= 2))
            {
                index = dt.DayOfYear - 1; // list is indexed from 0
            }
            else
            {
                index = dt.DayOfYear; // add a day
            }

            textblock.Text = devotions[index].Message; // or some other property
        }

        private void AddDevotions()
        {
            for (int i = 1; i <= 366; i++)
            {
                string filePath = "MyDevotions/Devotions" + i.ToString() + ".json";
                Devotion d = ReadJsonFile(filePath);
                devotions.Add(d);
            }
        }

        public Devotion ReadJsonFile(string JsonfilePath)
        {
            Devotion d = null;

            using (StreamReader r = new StreamReader(JsonfilePath))
            {
                string json = r.ReadToEnd();
                d = JsonConvert.DeserializeObject<devotion>(json);
            }
            return d;
        }

Thank you in advance and reply soon

Posted 19-Jan-15 0:37am

Member 10627743

Updated 19-Jan-15 0:38am

Praveen Kumar Upadhyay

v2

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Comments

[no name] 19-Jan-15 7:11am

Have you checked for each and every iteration whether any file is missing or not?

Member 10627743 19-Jan-15 7:54am

I corrected the file path it shows another error below

+ $exception {Newtonsoft.Json.JsonSerializationException: Cannot deserialize the current JSON array (e.g. [1,2,3]) into type 'DevotionJson.Devotion' because the type requires a JSON object (e.g. {"name":"value"}) to deserialize correctly.
To fix this error either change the JSON to a JSON object (e.g. {"name":"value"}) or change the deserialized type to an array or a type that implements a collection interface (e.g. ICollection, IList) like List<t> that can be deserialized from a JSON array. JsonArrayAttribute can also be added to the type to force it to deserialize from a JSON array.
Path '', line 1, position 1.
at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.EnsureArrayContract(JsonReader reader, Type objectType, JsonContract contract)
at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.CreateList(JsonReader reader, Type objectType, JsonContract contract, JsonProperty member, Object existingValue, String id)
at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.CreateValueInternal(JsonReader reader, Type objectType, JsonContract contract, JsonProperty member, JsonContainerContract containerContract, JsonProperty containerMember, Object existingValue)
at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.Deserialize(JsonReader reader, Type objectType, Boolean checkAdditionalContent)
at Newtonsoft.Json.JsonSerializer.DeserializeInternal(JsonReader reader, Type objectType)
at Newtonsoft.Json.JsonSerializer.Deserialize(JsonReader reader, Type objectType)
at Newtonsoft.Json.JsonConvert.DeserializeObject(String value, Type type, JsonSerializerSettings settings)
at Newtonsoft.Json.JsonConvert.DeserializeObject[T](String value, JsonSerializerSettings settings)
at Newtonsoft.Json.JsonConvert.DeserializeObject[T](String value)
at DevotionJson.MainPage.ReadJsonFile(String JsonfilePath)
at DevotionJson.MainPage.AddDevotions()
at DevotionJson.MainPage..ctor()} System.Exception {Newtonsoft.Json.JsonSerializationException}

What is the solution to this

Member 10627743 20-Jan-15 9:27am

Thank you i have fixed it

[no name] 20-Jan-15 23:14pm

Excellent. Post your fix as a solution so that it will be helpful to others.

George Swan 19-Jan-15 7:34am

It means that your app is requesting a file that cannot be found. It could be that the JsonfilePath string is not a valid filepath

Member 10627743 20-Jan-15 9:26am

Thank you i have fixed it

V. 20-Jan-15 9:08am

It might be an access rights issue.

Member 10627743 20-Jan-15 9:26am

Thank you i have fixed it

V. 20-Jan-15 10:57am

OK, excellent!
What was the issue?

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