c# - 如何删除 Crystal Reports 13.0 版中的加载报告失败错误？

Question

我正在使用 Crystal Report(版本 13.0)和 .NET Framework 4.0 以及 VS 2013 开发一个简单的应用程序。我正在做的是我在表单上有一个 Crystal 报表查看器，它应该显示/加载我的单击按钮时报告。我加载报告的代码是:

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
using CrystalDecisions.CrystalReports.Engine;
namespace CystalReportsApp
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private void button1_Click(object sender, EventArgs e)
        {
            try
            {
                ReportDocument rpt = new ReportDocument();
                rpt.Load(@"e:<path>\CystalReportsApp\CystalReportsApp\CrystalReport1.rpt");
                crystalReportViewer1.ReportSource = rpt;
                crystalReportViewer1.Refresh();
            }
            catch (Exception ex)
            {

                throw;
            }
        }
    }
}

我遇到的问题是，每当我单击按钮时，都会发生异常:

CrystalDecisions.Shared.CrystalReportsException was unhandled
HResult=-2146232832
Message=Load report failed.
Source=CrystalDecisions.CrystalReports.Engine
StackTrace:
   at CrystalDecisions.ReportAppServer.ReportClientDocumentWrapper.EnsureDocumentIsOpened()
   at CrystalDecisions.CrystalReports.Engine.ReportDocument.Load(String filename, OpenReportMethod openMethod, Int16 parentJob)
   at CrystalDecisions.CrystalReports.Engine.ReportDocument.Load(String filename)
   at CystalReportsApp.Form1.button1_Click(Object sender, EventArgs e) in e:\<path>\CystalReportsApp\Form1.cs:line 32
   at System.Windows.Forms.Control.OnClick(EventArgs e)
   at System.Windows.Forms.Button.OnClick(EventArgs e)
   at System.Windows.Forms.Button.OnMouseUp(MouseEventArgs mevent)
   at System.Windows.Forms.Control.WmMouseUp(Message& m, MouseButtons button, Int32 clicks)
   at System.Windows.Forms.Control.WndProc(Message& m)
   at System.Windows.Forms.ButtonBase.WndProc(Message& m)
   at System.Windows.Forms.Button.WndProc(Message& m)
   at System.Windows.Forms.Control.ControlNativeWindow.OnMessage(Message& m)
   at System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m)
   at System.Windows.Forms.NativeWindow.DebuggableCallback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)
   at System.Windows.Forms.UnsafeNativeMethods.DispatchMessageW(MSG& msg)
   at System.Windows.Forms.Application.ComponentManager.System.Windows.Forms.UnsafeNativeMethods.IMsoComponentManager.FPushMessageLoop(IntPtr dwComponentID, Int32 reason, Int32 pvLoopData)
   at System.Windows.Forms.Application.ThreadContext.RunMessageLoopInner(Int32 reason, ApplicationContext context)
   at System.Windows.Forms.Application.ThreadContext.RunMessageLoop(Int32 reason, ApplicationContext context)
   at System.Windows.Forms.Application.Run(Form mainForm)
   at CystalReportsApp.Program.Main() in e:\<path>\CystalReportsApp\Program.cs:line 19
   at System.AppDomain._nExecuteAssembly(RuntimeAssembly assembly, String[] args)
   at System.AppDomain.ExecuteAssembly(String assemblyFile, Evidence assemblySecurity, String[] args)
   at Microsoft.VisualStudio.HostingProcess.HostProc.RunUsersAssembly()
   at System.Threading.ThreadHelper.ThreadStart_Context(Object state)
   at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
   at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
   at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)
   at System.Threading.ThreadHelper.ThreadStart()
InnerException: System.Runtime.InteropServices.COMException
    HResult=-2147467259
    Message=The system cannot find the path specified.    
    Source=Analysis Server
    ErrorCode=-2147467259
    StackTrace:
         at CrystalDecisions.ReportAppServer.ClientDoc.ReportClientDocumentClass.Open(Object& DocumentPath, Int32 Options)
         at CrystalDecisions.ReportAppServer.ReportClientDocumentWrapper.Open(Object& DocumentPath, Int32 Options)
         at CrystalDecisions.ReportAppServer.ReportClientDocumentWrapper.EnsureDocumentIsOpened()
       InnerException: 

我尝试过的解决方案是:

1. 反复检查路径。
2. 检查临时文件夹以及我的报告所在文件夹的文件权限。
3. 正在检查 stackoverflow 的答案，但找不到关于我的问题的详细信息的答案。

但一切都在静脉中。有人可以告诉我幕后发生了什么吗？

已更新除了这个论坛，我还在 SAP Crystal Reports 的论坛上发布了这个问题，有人回答说只是从路径中删除 @ 符号。但是当我删除@符号时，出现“无法识别的转义序列”错误。请帮忙! Answer by SAP COMMUNITY NETWORK

Answer 1

尝试:

网络

 rpt.Load(Server.MapPath("\\CystalReportsApp\\CrystalReport1.rpt"))

window

rpt.Load(@"e:\\users\\shahid sultan minhas\\documents\\visual studio 2013\\Projects\\CystalReportsApp\\CystalReportsApp\\CrystalReport1.rpt")