C# Crystal Report未加载，但显示错误消息

我正在使用SQL Server 2014在VS-2012中生成simple Crystal Report，不幸的是，它没有在浏览器中加载/显示内容。显示没有错误

我所做的是，添加了项目，添加了crystal report，并配置了SQL Server数据库，拖放项目，在visual studio中的预览正确显示为SQL Server中的数据。我没有添加任何额外的数据集或数据表，因为我直接从SQL server获取数据

这是密码

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Data.Odbc;
using CrystalDecisions.CrystalReports.Engine;
using CrystalDecisions.Shared;
using System.Data.SqlClient;
using System.Data;
using System.Configuration;

namespace CrystalReports
{
    public partial class ShowReports : System.Web.UI.Page
    {
        //SqlConnection scon = new SqlConnection(ConfigurationManager.ConnectionStrings["DatabaseString"].ConnectionString);
        protected void Page_Load(object sender, EventArgs e)
        {


            if (!IsPostBack)
               {
                    CrystalReportViewer1.Visible = false;
                    //CrystalReportViewer1.RefreshReport();
               }
        }


        protected void Button1_Click1(object sender, EventArgs e)
        {
            ReportDocument myReportDocument = new ReportDocument();
            string reportPath = Server.MapPath(@"CrystalReport1.rpt");
            myReportDocument.Load(reportPath);
            string constring = ConfigurationManager.ConnectionStrings["DatabaseString"].ConnectionString;
            SqlConnection con = new SqlConnection(constring);
            string query = "SELECT * FROM tblCustomer";
 con.Open();
            SqlCommand cmd = new SqlCommand(query, con);
            cmd.CommandType = CommandType.Text;
            DataTable dt = new DataTable();

            SqlDataAdapter adp = new SqlDataAdapter();
            adp.SelectCommand = cmd;

            adp.Fill(dt);
            myReportDocument.SetDataSource(dt);
            CrystalReportViewer1.ReportSource = myReportDocument;
            CrystalReportViewer1.Visible = true;

        }
    }
}

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那是一个公开的网站吗？如果是，请确保您正在发布aspnet_客户端文件夹，crystal运行时在哪里files@cojimarmiami不，未发布。是否有子报表？