We've started working with Unity 2018.3.0b11 recently, and this means we can now use newer C# features, which is amazing! However, every time I've restarted Rider, it starts complaining about any C# 7.0 features, like this:

Resharper complaining about C# 7.0 features

The autofix is to allow ReSharper to suggest C# 7.0 features:

Resharper C# 7.0 auto fix

Opening the properties for the assembly will show that the language level has been set back to "latest":

Language back to "latest"

If I change it to 7.3 specifically and close and re-open the settings, it now explains that the settings are overridden in the "Rider Settings" to C# 6.0.

Language is overridden in Rider Settings to C# 6.0

If I click "Reset" it will then work, until the next time I restart Rider and it will be back to the first state above.

Using the "auto-fix" seems to take step one first (change to 7.0 specifically), still complaining though, and then if I do it a second time, it will do the second step ("Reset").

Is anyone else experiencing this with Unity 2018, and have you worked out a permanent fix?


1 Answer 1


Apparently it will be fixed in Rider 2018.3:


So, it's just a matter of waiting for it to be released, or using nightly builds until then...

  • 1
    \$\begingroup\$ Im having this same issue whit Rider 2019.3 \$\endgroup\$
    – Moxor
    Nov 17, 2020 at 20:53

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