Oracle parameter with Dapper issue

I am struggling with using ORACLE parameters via DAPPER. The error message received is "ORA-00942: table or view does not exist".

However the code works without the parameter, and I suspect that this is a simple Oracle parameter syntax issue. The code follows:

    public List<ForecastData>GetByFiscalYear(string fiscalYear)
    {
        List<ForecastData> queryResults = new List<ForecastData>();

        String sqlQuery = @"SELECT RES.FISCALYEAR year FROM RESOURCE_AVAILABILITY RES WHERE RES.FISCALYEAR = :p_fiscalYear";

        using (var oraCon = new OracleConnection(System.Configuration.ConfigurationManager.ConnectionStrings["Oracle_HRZD"].ToString()))
        {
            oraCon.Open();
            queryResults = oraCon.Query<ForecastData>(sqlQuery, new { p_fiscalYear = fiscalYear }).ToList();
        }

        return new List<ForecastData>(queryResults);
    }

Any assistance will be greatly appreciated...