Nuget Catch 22 after migrating VB project - vb.net

Question

I am migrating a VB project from VS 2010 to VS 2017 and I am getting the following errors:
Error occurred while restoring NuGet packages: System.ArgumentException: '$(NETStandardImplicitPackageVersion)' is not a valid version string.
**StackTrace**
and
'C:\Users\PathToProject\obj\project.assets.json' not found. Run a NuGet package restore to generate this file.
I can get around the first error by turning off nuget restore as mentioned here but then i can't get past the second error, which requires nuget restore, or some other way to generate project.assets.json
Here is my vbproj file:
<?xml version="1.0" encoding="utf-8"?>
<Project ToolsVersion="4.0" DefaultTargets="Build" Sdk="Microsoft.NET.Sdk.Web" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
<PropertyGroup>
<Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
<Platform Condition=" '$(Platform)' == '' ">x86</Platform>
<ProductVersion>
</ProductVersion>
<SchemaVersion>2.0</SchemaVersion>
<ProjectGuid>{E3DC9794-BE3D-43DC-8198-8843B1A65546}</ProjectGuid>
<OutputType>WinExe</OutputType>
<StartupObject>_GLENAIR_EEPROM_CONFIG_GUI.My.MyApplication</StartupObject>
<RootNamespace>_GLENAIR_EEPROM_CONFIG_GUI</RootNamespace>
<AssemblyName>Glenair EEPROM Config Interface</AssemblyName>
<FileAlignment>512</FileAlignment>
<MyType>WindowsForms</MyType>
<TargetFrameworkVersion>v4.0</TargetFrameworkVersion>
<TargetFrameworkProfile>Client</TargetFrameworkProfile>
<IsWebBootstrapper>false</IsWebBootstrapper>
<PublishUrl>publish\</PublishUrl>
<Install>true</Install>
<InstallFrom>Disk</InstallFrom>
<UpdateEnabled>true</UpdateEnabled>
<UpdateMode>Foreground</UpdateMode>
<UpdateInterval>7</UpdateInterval>
<UpdateIntervalUnits>Days</UpdateIntervalUnits>
<UpdatePeriodically>false</UpdatePeriodically>
<UpdateRequired>false</UpdateRequired>
<MapFileExtensions>true</MapFileExtensions>
<ProductName>Glenair EEPROM Config GUI</ProductName>
<PublisherName>Glenair</PublisherName>
<SuiteName>Glenair EEPROM</SuiteName>
<ApplicationRevision>4</ApplicationRevision>
<ApplicationVersion>2.4.0.4</ApplicationVersion>
<UseApplicationTrust>false</UseApplicationTrust>
<CreateDesktopShortcut>true</CreateDesktopShortcut>
<PublishWizardCompleted>true</PublishWizardCompleted>
<BootstrapperEnabled>true</BootstrapperEnabled>
</PropertyGroup>
<PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|x86' ">
<PlatformTarget>x86</PlatformTarget>
<DebugSymbols>true</DebugSymbols>
<DebugType>full</DebugType>
<DefineDebug>true</DefineDebug>
<DefineTrace>true</DefineTrace>
<OutputPath>bin\Debug\</OutputPath>
<DocumentationFile>Glenair EEPROM Config Interface.xml</DocumentationFile>
<NoWarn>42016,41999,42017,42018,42019,42032,42036,42020,42021,42022</NoWarn>
<RemoveIntegerChecks>true</RemoveIntegerChecks>
</PropertyGroup>
<PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|x86' ">
<PlatformTarget>x86</PlatformTarget>
<DebugType>pdbonly</DebugType>
<DefineDebug>false</DefineDebug>
<DefineTrace>true</DefineTrace>
<Optimize>true</Optimize>
<OutputPath>bin\Release\</OutputPath>
<DocumentationFile>Glenair EEPROM Config Interface.xml</DocumentationFile>
<NoWarn>42016,41999,42017,42018,42019,42032,42036,42020,42021,42022</NoWarn>
<RemoveIntegerChecks>true</RemoveIntegerChecks>
</PropertyGroup>
<PropertyGroup>
<OptionExplicit>On</OptionExplicit>
</PropertyGroup>
<PropertyGroup>
<OptionCompare>Binary</OptionCompare>
</PropertyGroup>
<PropertyGroup>
<OptionStrict>Off</OptionStrict>
</PropertyGroup>
<PropertyGroup>
<OptionInfer>On</OptionInfer>
</PropertyGroup>
<PropertyGroup>
<ManifestCertificateThumbprint>AD3083285EA99B2F1F52BD898477B62BC6D3A802</ManifestCertificateThumbprint>
</PropertyGroup>
<PropertyGroup>
<ManifestKeyFile>990-05010-X_EEPROM_LOADER_TemporaryKey.pfx</ManifestKeyFile>
</PropertyGroup>
<PropertyGroup>
<GenerateManifests>true</GenerateManifests>
</PropertyGroup>
<PropertyGroup>
<SignManifests>false</SignManifests>
</PropertyGroup>
<PropertyGroup>
<ApplicationManifest>My Project\app.manifest</ApplicationManifest>
</PropertyGroup>
<PropertyGroup>
<ApplicationIcon>GLENAIR_BERT_GUI.ico</ApplicationIcon>
</PropertyGroup>
<PropertyGroup>
<TargetZone>LocalIntranet</TargetZone>
</PropertyGroup>
<PropertyGroup>
<EnableDefaultCompileItems>false</EnableDefaultCompileItems>
<EnableDefaultEmbeddedResourceItems>false</EnableDefaultEmbeddedResourceItems>
</PropertyGroup>
<ItemGroup>
<Reference Include="System" />
<Reference Include="System.Data" />
<Reference Include="System.Deployment" />
<Reference Include="System.Drawing" />
<Reference Include="System.Management" />
<Reference Include="System.Windows.Forms" />
<Reference Include="System.Windows.Forms.DataVisualization" />
<Reference Include="System.Xml" />
<Reference Include="System.Core" />
<Reference Include="System.Xml.Linq" />
<Reference Include="System.Data.DataSetExtensions" />
</ItemGroup>
<ItemGroup>
<Import Include="Microsoft.VisualBasic" />
<Import Include="System" />
<Import Include="System.Collections" />
<Import Include="System.Collections.Generic" />
<Import Include="System.Data" />
<Import Include="System.Drawing" />
<Import Include="System.Diagnostics" />
<Import Include="System.Windows.Forms" />
<Import Include="System.Linq" />
<Import Include="System.Xml.Linq" />
</ItemGroup>
<ItemGroup>
<Compile Include="ApplicationEvents.vb" />
<Compile Include="Form1.vb">
<SubType>Form</SubType>
</Compile>
<Compile Include="Form1.Designer.vb">
<DependentUpon>Form1.vb</DependentUpon>
<SubType>Form</SubType>
</Compile>
<Compile Include="My Project\AssemblyInfo.vb" />
<Compile Include="My Project\Application.Designer.vb">
<AutoGen>True</AutoGen>
<DependentUpon>Application.myapp</DependentUpon>
</Compile>
<Compile Include="My Project\Resources.Designer.vb">
<AutoGen>True</AutoGen>
<DesignTime>True</DesignTime>
<DependentUpon>Resources.resx</DependentUpon>
</Compile>
<Compile Include="My Project\Settings.Designer.vb">
<AutoGen>True</AutoGen>
<DependentUpon>Settings.settings</DependentUpon>
<DesignTimeSharedInput>True</DesignTimeSharedInput>
</Compile>
<Compile Include="Settings.vb" />
</ItemGroup>
<ItemGroup>
<EmbeddedResource Include="Form1.resx">
<DependentUpon>Form1.vb</DependentUpon>
</EmbeddedResource>
<EmbeddedResource Include="My Project\Resources.resx">
<Generator>VbMyResourcesResXFileCodeGenerator</Generator>
<LastGenOutput>Resources.Designer.vb</LastGenOutput>
<CustomToolNamespace>My.Resources</CustomToolNamespace>
<SubType>Designer</SubType>
</EmbeddedResource>
</ItemGroup>
<ItemGroup>
<None Include="My Project\app.manifest">
<SubType>Designer</SubType>
</None>
<None Include="My Project\Application.myapp">
<Generator>MyApplicationCodeGenerator</Generator>
<LastGenOutput>Application.Designer.vb</LastGenOutput>
</None>
<None Include="My Project\Settings.settings">
<Generator>SettingsSingleFileGenerator</Generator>
<CustomToolNamespace>My</CustomToolNamespace>
<LastGenOutput>Settings.Designer.vb</LastGenOutput>
</None>
</ItemGroup>
<ItemGroup>
<BootstrapperPackage Include=".NETFramework,Version=v4.0,Profile=Client">
<Visible>False</Visible>
<ProductName>Microsoft .NET Framework 4 Client Profile %28x86 and x64%29</ProductName>
<Install>true</Install>
</BootstrapperPackage>
<BootstrapperPackage Include="Microsoft.Net.Client.3.5">
<Visible>False</Visible>
<ProductName>.NET Framework 3.5 SP1 Client Profile</ProductName>
<Install>false</Install>
</BootstrapperPackage>
<BootstrapperPackage Include="Microsoft.Net.Framework.3.5.SP1">
<Visible>False</Visible>
<ProductName>.NET Framework 3.5 SP1</ProductName>
<Install>false</Install>
</BootstrapperPackage>
<BootstrapperPackage Include="Microsoft.Windows.Installer.3.1">
<Visible>False</Visible>
<ProductName>Windows Installer 3.1</ProductName>
<Install>true</Install>
</BootstrapperPackage>
</ItemGroup>
<ItemGroup>
<Content Include="GLENAIR_BERT_GUI.ico" />
<Content Include="GLENAIR_BERT_GUI2.ico" />
<None Include="Resources\9_inch_300_dpi_cmyk_logo.jpg" />
</ItemGroup>
<ItemGroup>
<PublishFile Include="Microsoft.VisualBasic.PowerPacks.Vs">
<Visible>False</Visible>
<Group>
</Group>
<TargetPath>
</TargetPath>
<PublishState>Include</PublishState>
<IncludeHash>True</IncludeHash>
<FileType>Assembly</FileType>
</PublishFile>
</ItemGroup>
<Import Project="$(MSBuildToolsPath)\Microsoft.VisualBasic.targets" />
<!-- To modify your build process, add your task inside one of the targets below and uncomment it.
Other similar extension points exist, see Microsoft.Common.targets.
<Target Name="BeforeBuild">
</Target>
<Target Name="AfterBuild">
</Target>
-->
</Project>
Detailed Build Log: Here (Too long to post here)

Answer 1

Remove the csproj from the solution and add it again. Make sure you have a recent version of VS 2017 (at the time of writing 15.7.2).
This can happen if you migrate to an sdk-style project (<Project Sdk="Microsoft.NET.Sdk">) which is loaded using the classic csproj project system instead of the new project system specifically designed for this type of project.
The GUIDs in the solution as well as the ocurrance of a <TargetFramework> property determine which project system is used to load the csproj.