nopCommerce no source (downloaded from the nopCommerce site) gives an error while running on a Linux machine. 


A fatal error was encountered. The library 'libhostpolicy.so' required to execute the application was not found in '/var/nop420/'.
Failed to run as a self-contained app. If this should be a framework-dependent app, specify the appropriate 
framework in /var/nop420/Nop.Web.runtimeconfig.json.



OS: Ubuntu Server 18.04

Steps:

1. Install .NET Core SDK 2.2 on a Linux machine.
2. Download the published code from nopCommerce site and unzip it.
3. Goto the folder and run the command [dotnet Nop.Web.dll]

Resolution:

Currently the "Nop.Web.runtimeconfig.json" file doesn't contain framework detail

{
  "runtimeOptions": {
    "configProperties": {
      "System.GC.Concurrent": false,
      "System.GC.Server": false
    }
  }
}


It should be 

{
  "runtimeOptions": {
    "tfm": "netcoreapp2.2",
    "framework": {
      "name": "Microsoft.AspNetCore.App",
      "version": "2.2.0"
    },
    "configProperties": {
      "System.GC.Concurrent": false,
      "System.GC.Server": true
    }
  }
}



Perhaps need to add changes in the Web csproj file.