Cfrgtkky

I have an old program that is targeting dotnet framework v4.0, and I am trying to run and edit it in visual studio 2017. I've tried editing the targeting manually in the .csproj file, with no success, normally with the following error:

[fail]: OmniSharp.MSBuild.ProjectLoader

The reference assemblies for framework ".NETFramework,Version=v4.0" were not found. 

To resolve this, install the SDK or Targeting Pack for this framework version or retarget 

your application to a version of the framework for which you have the SDK or Targeting 

Pack installed. Note that assemblies will be resolved from the Global Assembly Cache (GAC)

and will be used in place of reference assemblies. Therefore your assembly may not be 

correctly targeted for the framework you intend.

Is there a simple way to retarget this or is there something I am missing in my setup of the program? The code was retrieved from another computer (which no longer exists), so I don't know what the environment was on it.

This is the opening part of my .csproj file:

<?xml version="1.0" encoding="utf-8"?>

<Project ToolsVersion="4.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">

<PropertyGroup>

    <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>

    <Platform Condition=" '$(Platform)' == '' ">x86</Platform>

    <ProductVersion>8.0.30703</ProductVersion>

    <SchemaVersion>2.0</SchemaVersion>

    <ProjectGuid>{526AF6ED-D8AE-460A-AA38-FAF6FCAEBDF7}</ProjectGuid>

    <OutputType>WinExe</OutputType>

    <AppDesignerFolder>Properties</AppDesignerFolder>

    <RootNamespace>DDMFeedbackVS</RootNamespace>

    <AssemblyName>DDMFeedbackVS</AssemblyName>

    <TargetFrameworkVersion>v4.0</TargetFrameworkVersion>

    <TargetFrameworkProfile>

    </TargetFrameworkProfile>

    <FileAlignment>512</FileAlignment>

</PropertyGroup>