CODEWITHSUNDEEP
c#c#-7.2.net-4.7.2
dthal
dthal

Reputation: 711

How fix "C# 7.0 language feature" build errors? (after fresh checkout, previously working)

I had a Visual Studio solution that was working fine. I did a fresh checkout from TFS (with both overwrite checkboxes selected) after deleting the entire source tree. Now C# 7.0 features are not building. Projects that do not build have been confirmed to have Target framework = .NET Framework 4.7.2.

Also, in the Advanced Build Settings, C# 7.0 options are not available (even though 7.0, 7.1, 7.2 and 7.3 are all available on my other machine which has not been wiped clean).

How do I fix this?

Environment: Visual Studio Enterprise 2017 Update 3, ReSharper 2018.1.3 (6/26/2018), C# 4.7.2

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Upvotes: 0

Views: 2064

Answers (1)

dthal
dthal

Reputation: 711

The VS2017 solution was mistakenly opened in VS2015 (my dev environment requires both regularly). The solution was obviously to open it in VS2017.

@jonskeet provided the answer in a comment above

Upvotes: 1

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