The given key was not present in the dictionary, i am calling the key immediately after adding it

Questions & Answers
1

Here is the dictionaries i am calling from in the function

public Dictionary<Vector2, GameObject> TilePos = new Dictionary<Vector2, GameObject>();
    public Dictionary<Vector2, GameObject> UnitPos = new Dictionary<Vector2, GameObject>();
    public Dictionary<Vector2, GameObject> BuildingPos = new Dictionary<Vector2, GameObject>();

Here is the function that the error originates from

public void SaveMap(Dictionary<Vector2, GameObject> TP, Dictionary<Vector2, GameObject> UP,Dictionary<Vector2,GameObject> BP, string SaveName)
    {
        if (!System.IO.File.Exists(Application.dataPath + "/StreamingAssets/Saves/" + SaveName + ".dat"))
        {
            if (SaveName != "")
            {
                if (!Regex.IsMatch(SaveName, @"^[a-z][A-Z]+$"))
                {
                    Map save = new Map();
                    foreach (KeyValuePair<Vector2, GameObject> kvp in TP)
                    {
                        foreach (var kvvp in DBC.TerrainDictionary)
                        {
                            if (kvp.Value.transform.name == kvvp.Value.Title)
                            {
                                save.TerrainPositions.Add(kvp.Key, kvvp.Value);
                            }
                        }
                    }
                    foreach (KeyValuePair<Vector2, GameObject> ukvp in UP)
                    {
                        if (ukvp.Value != null)
                        {
                            foreach (var keyvp in DBC.UnitDictionary)
                            {
                                if (ukvp.Value.transform.name == keyvp.Value.Title)
                                {
                                    save.UnitPosition.Add(ukvp.Key, keyvp.Value);

                                    //this errors, cant figure out why
                                    save.UnitPosition[ukvp.Key].Team = ukvp.Value.transform.GetComponent<SpriteController>().Team;
                                    //this errors, cant figure out why
                                }
                            }
                        }
                    }
                    foreach (KeyValuePair<Vector2, GameObject> bkvp in BP)
                    {
                        if (bkvp.Value != null)
                        {
                            foreach (var kvp in DBC.BuildingDictionary)
                            {
                                if (bkvp.Value.transform.name == kvp.Value.Title)
                                {
                                    save.BuildingPositions.Add(bkvp.Key, kvp.Value);
                                    save.BuildingPositions[bkvp.Key].Team = bkvp.Value.transform.GetComponent<SpriteController>().Team;
                                }
                            } 
                        }
                    }
                    string destination = Application.dataPath + "/StreamingAssets/Saves/" + SaveName + ".dat";
                    var fs = File.Create(destination);
                    BinaryFormatter bf = new BinaryFormatter();
                    bf.Serialize(fs, save);
                    fs.Close();
                    MEMCC.SaveFeedback.text = "File saved as: " + SaveName;  
                }
                else
                {
                    MEMCC.SaveFeedback.text = "Only use letters";
                }
            }
            else
            {
                MEMCC.SaveFeedback.text = "Add a name.";
            }
        }
        else
        {
            MEMCC.SaveFeedback.text = "Current file name is already in use, please rename your save or delete old file.";
        }
    }

Here is the class for Map

[Serializable]
public class Map
{
    public Dictionary<SeralizableVector2, Terrain> TerrainPositions = new Dictionary<SeralizableVector2, Terrain>();
    public Dictionary<SeralizableVector2, Unit> UnitPosition = new Dictionary<SeralizableVector2, Unit>();
    public Dictionary<SeralizableVector2, Building> BuildingPositions = new Dictionary<SeralizableVector2, Building>();
}

This is my unique vector2 (unity vector2 are not serializable)

[Serializable]
public class SeralizableVector2
{
    public float x;
    public float y;

    public SeralizableVector2(float rx,float ry)
    {
        x = rx;
        y = ry;
    }

    public static implicit operator Vector2 (SeralizableVector2 rValue)
    {
        Vector2 newVec = new Vector2(rValue.x, rValue.y);
        return newVec;
    }

    public static implicit operator SeralizableVector2(Vector2 Value)
    {
        return new SeralizableVector2(Value.x, Value.y);
    }
}

Let me know if more info is needed. Any help is appreciated.

3

You have to override the Equals and GetHashCode methods in a class if you want to use instances of that class as keys of a Dictionary, or you can pass a IEqualityComparer when you create the Dictionary object.

2

Again, thank you if you can provide some insight, this is driving me nuts because I cannot see the problem for the life of me.