CS0246: The type or namespace name 'CrystalDecisions' could not be found

Question

I trying open already created ASP.NET project in another PC locally via IIS manager. But I'm getting this error:

CS0246: The type or namespace name 'CrystalDecisions' could not be found (are you missing a using directive or an assembly reference?)

I've tried the following to resolve this:

1. Added Namespaces :

   CrystalDecisions.CrystalReports.Engine;
   
   CrystalDecisions.Shared;
   
   CrystalDecisions.ReportSource;
   

2. Target Framework set to .Net Framework 4.

3. Installed CrystalDecisions.CrystalReports.Engine via NuGet Package manager.

Solution

Try this:

1. Locate your C# project file ( YourProjectName.csproj ).

2. Open it using Notepad++ or any other text editor.

3. Press Ctrl + F and find for <Reference Include=

4. There should be a CrystalDecisions.CrystalReports.Engine

5. If it isn't add this, use the correct version:

   <Reference Include="CrystalDecisions.CrystalReports.Engine, Version=13.0.3500.0, Culture=neutral, PublicKeyToken=692fbea5521e1304, processorArchitecture=MSIL" />
   <Reference Include="CrystalDecisions.ReportSource, Version=13.0.3500.0, Culture=neutral, PublicKeyToken=692fbea5521e1304, processorArchitecture=MSIL" />
   <Reference Include="CrystalDecisions.Shared, Version=13.0.3500.0, Culture=neutral, PublicKeyToken=692fbea5521e1304, processorArchitecture=MSIL" />
   <Reference Include="CrystalDecisions.Windows.Forms, Version=13.0.3500.0, Culture=neutral, PublicKeyToken=692fbea5521e1304, processorArchitecture=MSIL" />
   <Reference Include="FlashControlV71, Version=1.0.3187.32366, Culture=neutral, PublicKeyToken=692fbea5521e1304" />