OmniSharp fails to start if it reads an unparsesable sln file

Environment data

.NET Command Line Tools (2.1.104)

Product Information:
 Version:            2.1.104
 Commit SHA-1 hash:  48ec687460

Runtime Environment:
 OS Name:     Windows
 OS Version:  10.0.17134
 OS Platform: Windows
 RID:         win10-x64
 Base Path:   C:\Program Files\dotnet\sdk\2.1.104\

Microsoft .NET Core Shared Framework Host

  Version  : 2.0.6
  Build    : 74b1c703813c8910df5b96f304b0f2b78cdf194d

VS Code version: Version 1.23.1 Commit d0182c3417d225529c6d5ad24b7572815d0de9ac Date 2018-05-10T17:11:17.614Z Shell 1.7.12 Renderer 58.0.3029.110 Node 7.9.0 Architecture x64

C# Extension version: ? :S

Steps to reproduce

Make a project directory with some template sln/csproj (useless when not processed) files which are alphabetically before the real (processed template) sln/csproj files. For example:

<projectdir>/AAA/MyProject.template.sln
<projectdir>/BBB/MyProject.sln (this one is generated, the input is MyProject.template.sln)

Omnisharp will use the template instead of the real MyProject.sln file.

Expected behavior

A good working editor instead of only having basic syntax highlighting.

Actual behavior

Facilities like autocomplete does not work outside of the working file because omnisharp is using a template file - which does not contain any useful information - instead of the real Solution File. A workaround is to rename my templates so not to use the SNL or CSPROJ extension. For example rename: MyProject.template.sln -> MyProject.sln.template. In which case omnisharp will ignore the file. I’ve seen other languages make use of choosing a project/xml/sln file from the editor which will be used. Something like that would be pretty nice!

Obliviously this is a very minor issue, especially if you know that renaming the templates will solve it. Just wanted to make a note of it!

[vramanx]

Along the same lines: how do i set a default sln to use when i point to a folder with multiple slns?

[rchande]

@vramanx @janaka is working on a PR to contribute that functionality: https://github.com/OmniSharp/omnisharp-vscode/pull/2053