.slnx solution files still cause "No file format header found" in v10.0.1

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Assessment

Difficulty
2/5
Estimated time
1-3 hours
Newbie friendliness
78/100
Issue type
Bug
Clarity
Clearly specified
Activity status
Active
Tech stack
csharp

Research direction

Start with CodeConv/CodeConv.csproj and CodeConverter/CodeConverter.csproj, then inspect the four Microsoft.CodeAnalysis package references currently at 4.14.0. Verify the dependency update against the .slnx failure described in the issue and test conversion of a VB project using a .slnx solution. Done means the solution opens without the file-format-header exception.

Written by the indexing model from the issue text.

Description

CodeConverter Version: 10.0.1
OS: Windows

Error

Microsoft.Build.Exceptions.InvalidProjectFileException: No file format header found.
at Microsoft.Build.Construction.SolutionFile.ParseFileHeader()
at Microsoft.Build.Construction.SolutionFile.ParseSolution()
at Microsoft.Build.Construction.SolutionFile.ParseSolutionFile()
at Microsoft.Build.Construction.SolutionFile.Parse(String solutionFile)
at Microsoft.CodeAnalysis.MSBuild.MSBuildProjectLoader.LoadSolutionInfoAsync(...)
at Microsoft.CodeAnalysis.MSBuild.MSBuildWorkspace.OpenSolutionAsync(...)
at ICSharpCode.CodeConverter.CommandLine.MsBuildWorkspaceConverter.SolutionLoader.AnalyzeSolutionAsync(...) in MsBuildWorkspaceConverter.cs:line 87

Description

Despite issue #1195 being listed as fixed in v10.0.1, converting a VB project using a .slnx
solution file still fails with the above error. The bundled
Microsoft.CodeAnalysis.Workspaces.MSBuild.dll is version 4.14.0 (file version
4.1400.25.26210). MSBuildWorkspace in 4.x tries to parse .slnx as a traditional .sln file
and fails at the file header check — .slnx is XML-based and has no such header.

Root Cause

.slnx support in MSBuildWorkspace.OpenSolutionAsync requires
Microsoft.CodeAnalysis.Workspaces.MSBuild 5.x. The latest stable is 5.3.0.

Proposed Fix

Update CodeConv/CodeConv.csproj (and CodeConverter/CodeConverter.csproj):

  • Microsoft.CodeAnalysis.Workspaces.MSBuild 4.14.0 → 5.3.0
  • Microsoft.CodeAnalysis.CSharp.Workspaces 4.14.0 → 5.3.0
  • Microsoft.CodeAnalysis.VisualBasic.Workspaces 4.14.0 → 5.3.0
  • Microsoft.CodeAnalysis.CSharp.Features 4.14.0 → 5.3.0
References
Dominant language
C#
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Forks
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