我最近得到的任务是修复一个有错误的网站。我必须使用Crystal Reports。但是到目前为止我还没有使用Crystal Reports的经验。我在visual studio 2013和.Net 4.5工作。我之前尝试安装它但是我得到了：“无法加载文件或程序集”错误并且丢失了文件。所以我的问题是：我需要安装什么才能使我的网站正常运行而没有任何错误？ （什么版本等）
编辑：我下载并安装了最新版本的水晶报告并收到了此错误：Could not load file or assembly
CrystalDecisions.ReportAppServer.Commonls, Version=13.0.2000.0,
Culture=neutral, PublicKeyToken=692fbea5521e1304' or one of its
dependencies. The system cannot find the file specified.
这是日志：
=== Pre-bind state information ===
LOG: DisplayName = CrystalDecisions.ReportAppServer.Commonls, Version=13.0.2000.0, Culture=neutral, PublicKeyToken=692fbea5521e1304
(Fully-specified)
LOG: Appbase = file:///C:/School/Vacaturesite/
LOG: Initial PrivatePath = C:\School\Vacaturesite\bin
Calling assembly : (Unknown).
===
LOG: This bind starts in default load context.
LOG: Using application configuration file: C:\School\Vacaturesite\web.config
LOG: Using host configuration file: C:\Users\Beheerder\Documents\IISExpress\config\aspnet.config
LOG: Using machine configuration file from C:\Windows\Microsoft.NET\Framework\v4.0.30319\config\machine.config.
LOG: Post-policy reference: CrystalDecisions.ReportAppServer.Commonls, Version=13.0.2000.0, Culture=neutral, PublicKeyToken=692fbea5521e1304
LOG: Attempting download of new URL file:///C:/Users/Beheerder/AppData/Local/Temp/Temporary ASP.NET Files/vs/ae77f9fe/8f0f70a0/CrystalDecisions.ReportAppServer.Commonls.DLL.
LOG: Attempting download of new URL file:///C:/Users/Beheerder/AppData/Local/Temp/Temporary ASP.NET Files/vs/ae77f9fe/8f0f70a0/CrystalDecisions.ReportAppServer.Commonls/CrystalDeci sions.ReportAppServer.Commonls.DLL.
LOG: Attempting download of new URL file:///C:/School/Vacaturesite/bin/CrystalDecisions.ReportAppServer.Commonls.DLL .
LOG: Attempting download of new URL file:///C:/School/Vacaturesite/bin/CrystalDecisions.ReportAppServer.Commonls/Cry stalDecisions.ReportAppServer.Commonls.DLL.
LOG: Attempting download of new URL file:///C:/Users/Beheerder/AppData/Local/Temp/Temporary ASP.NET Files/vs/ae77f9fe/8f0f70a0/CrystalDecisions.ReportAppServer.Commonls.EXE.
LOG: Attempting download of new URL file:///C:/Users/Beheerder/AppData/Local/Temp/Temporary ASP.NET Files/vs/ae77f9fe/8f0f70a0/CrystalDecisions.ReportAppServer.Commonls/CrystalDeci sions.ReportAppServer.Commonls.EXE.
LOG: Attempting download of new URL file:///C:/School/Vacaturesite/bin/CrystalDecisions.ReportAppServer.Commonls.EXE .
LOG: Attempting download of new URL file:///C:/School/Vacaturesite/bin/CrystalDecisions.ReportAppServer.Commonls/CrystalDecisions.ReportAppServer.Commonls.EXE.