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When I publish an ASP.NET Core Web API that has an async Main method: public static async Task Main, I get the following error:
Program.cs(13,29): Error CS8107: Feature 'async main' is not available in C# 7.0. Please use language version 7.1 or greater.
CSC(0,0): Error CS5001: Program does not contain a static 'Main' method suitable for an entry point
This occurs even after setting the language version of each project in the solution to C# 7.2 for both Debug and Release build configurations.
Visual Studio 2017 Version: 15.5.2
OS Version: Windows 10 Pro Version 1709
VadimOvchinnikov, justinhelgerson, joshnoe and aripovula