使用CreateCSharpAssemblyInfo会抛出错误：FAKE-F＃MAKE

Question

I am using "CreateCSharpAssemblyInfo" function of FAKE for updating AssemblyInfo.cs. But I am getting error , ie

  2) CS0579: Properties\AssemblyInfo.cs: Duplicate 'AssemblyProductAttribute' attribute
  3) CS0579: Properties\AssemblyInfo.cs: Duplicate 'AssemblyCompanyAttribute' attribute
  4) CS0579: Properties\AssemblyInfo.cs: Duplicate 'AssemblyCopyrightAttribute' attribute
  5) CS0579: Properties\AssemblyInfo.cs: Duplicate 'AssemblyVersionAttribute' attribute
  6) CS0579: Properties\AssemblyInfo.cs: Duplicate 'AssemblyFileVersionAttribute' attribute

here is the code that I am using :

let assemblyInfo = [
  Attribute.Title "My Project"
  Attribute.Product "My Product"
  Attribute.Company "XYZ"
  Attribute.Copyright "Copyright XYZ"
  Attribute.Version "14.8"
  Attribute.FileVersion "13.9"
]

Target "BuildApp" (fun _ ->
  CreateCSharpAssemblyInfo  "./Source Code/Project/Properties/AssemblyInfo.cs" assemblyInfo
  !! "/Source Code/Project.sln"
      |> MSBuildReleaseExt buildDir [("SolutionDir", currentPath @@ "\BuildTools")] "Build"
      |> Log "AppBuild-Output:"
)

I am not getting the reason of this error .

I'm new to FAKE and have not used F# much, so forgive me if this should be obvious.

If anyone can help , that would be really helpful.

Answer 1

Have you tried the CreateCSharpAssemblyInfoWithConfig argument? It allows for an additional parameter:

CreateCSharpAssemblyInfoWithConfig
        assemblyInfoFile
        attributes
        (AssemblyInfoFileConfig(generateClass=false))

Alternatively, the UpdateAttribute would do a similar thing (in my case all developers work in Visual Studio and it is safe to assume default AssemblyInfo.cs files would be auto-generated). From the doc :

Update a set of attributes in an AssemblyInfo file. Fails if any attribute is not found.

See below example:

Target "UpdateAssemblyInfo" (fun _ -> 
    let csProjectDirs =
        !! "**/**/*.csproj"
        |> Seq.map (directory >> directoryInfo)

    let attributes =
        [ 
            Attribute.Title "My Project"
            Attribute.Product "My Product"
            Attribute.Company "XYZ"
            Attribute.Copyright "Copyright XYZ"
         ]
    let applyAssemblyInfo (projDir:DirectoryInfo) = 
        let assemblyInfoFile = projDir.FullName @@ "Properties/AssemblyInfo.cs"
        clearReadOnly assemblyInfoFile
        UpdateAttributes
            assemblyInfoFile
            attributes

    csProjectDirs |> Seq.iter applyAssemblyInfo
)