Programming, error messages and sample code

How to config ASPNETCORE_ENVIRONMENT for ASP.NET Core Application?

Programming, error messages and sample code > ASP.NET

Update web.config with an <environmentVariables> section under <aspNetCore>

<configuration>
  <system.webServer>
    <aspNetCore .....>
      <environmentVariables>
        <environmentVariable name="ASPNETCORE_ENVIRONMENT" value="Development" />
      </environmentVariables>
    </aspNetCore>
  </system.webServer>
</configuration>

Alternatively, set it from your Control Panel > Advance > Environment Variables, please see details How to set Environment Variable for your Account