Error message "CS5001 Program does not contain a static 'Main' method suitable for an entry point"

Question

Unable to execute the following code error CS5001 Program does not contain a static 'Main' method suitable for an entry point

What does this error message mean?

class Program {     static async Task MainAsync(string[] args)     {         Account.accountTest accountTest = new Account.accountTest();          bool result = await accountTest.CreateAccountAsync();     } } 

Answer 1

It means that you don't have a suitable entry point for your application at the moment.

That code will nearly work with C# 7.1, but you do need to explicitly enable C# 7.1 in your project file:

<LangVersion>7.1</LangVersion> 

or more generally:

<LangVersion>latest</LangVersion> 

You also need to rename MainAsync to Main. So for example:

Program.cs:

using System.Threading.Tasks;  class Program {     static async Task Main(string[] args)     {         await Task.Delay(1000);     } } 

ConsoleApp.csproj:

<Project Sdk="Microsoft.NET.Sdk">   <PropertyGroup>     <OutputType>Exe</OutputType>     <TargetFramework>netcoreapp2.0</TargetFramework>     <LangVersion>7.1</LangVersion>   </PropertyGroup> </Project> 

... builds and runs fine.