How to Fix Duplicate TargetFrameworkAttribute Error in ASP.NET using Visual Studio | CS 0579 Error

Опубликовано: 25 Январь 2025
на канале: Sajawal Khan Jadoon

765

‪@SajawalKhanJadoon‬
Welcome! Today we will troubleshoot and fix the Error CS0579: Duplicate TargetFrameworkAttribute in ASP.NET Application in Visual Studio. This error indicates that your project contains multiple instances of the TargetFrameworkAttribute, which specifies the target framework for your assembly. Having duplicate attributes of this type can cause conflicts and compilation issues.

The error CS 0579 occurs when we build or publish our .NET Project in Visual Studio. The attribute is duplicated in the AssemblyInfo.cs file. The Visual Studio indicates that there are multiple Target Framework Attributes in the project. The TargetFrameworkAttribute is an attribute used to specify the version of the .NET runtime against which an assembly was built. It provides essential metadata about the assembly's compatibility with different .NET environments.

Topics Covered:

.NET build error
.NET compilation error
.NET Core error
.NET Framework error
.NET metadata error
.NET project build fails with TargetFrameworkAttribute error
.NET project error
.NET TargetFrameworkAttribute error
\obj\Release\.NETFramework,Version=v4.5.AssemblyAttributes.cs file
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App\obj\Debug.NETFramework,Version=v4.7.2.AssemblyAttributes.cs
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assembly:global::System.Runtime.Versioning.TargetFrameworkAttribute
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Compiler Error Message: CS0579:Duplicate 'globalSystem.Runtime.Versioning.TargetFrameworkAttribute
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could not load type 'system runtime versioning targetplatformattribute
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Visual Studio compiler error
When I build my application I get the following error CS0579
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working of assemblyattributes.cs in ASP.NET
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Visual Studio error
Visual Studio issue
Visual Studio problem
Visual Studio settings
VS