ProjectReference causing PM UI to error with "Value cannot be null. Parameter name: frameworkIdentifier"

[donnie-msft]

Framework is null on projectReference resulting in ArgumentNullException: "Value cannot be null. Parameter name: frameworkIdentifier"

Reproes only on the Installed Tab (Browse tab works) on a ConsoleApp which has a ProjectReference to a ClassLibrary in the same solution.

Fixed by deleting bin/obj folders.

ConsoleApp2.csproj snippet:

 <ItemGroup>
    <PackageReference Include="Microsoft.Office.Interop.Excel">
      <Version>15.0.4795.1001</Version>
    </PackageReference>
  </ItemGroup>
  <ItemGroup>
    <ProjectReference Include="..\ClassLibrary3\ClassLibrary3.csproj">
      <Project>{63D2D8D1-16B3-4D98-9421-259E1B7A4301}</Project>
      <Name>ClassLibrary3</Name>
    </ProjectReference>
  </ItemGroup>

NuGet.Frameworks.NuGetFramework.NuGetFramework(frameworkIdentifier = null, frameworkVersion = {System.Version}, profile = "", platform = "", platformVersion = {System.Version}) Line 59
at C:\NuGet.Client\src\NuGet.Core\NuGet.Frameworks\NuGetFramework.cs(59)
NuGet.Frameworks.NuGetFramework.NuGetFramework(frameworkIdentifier = null, frameworkVersion = {System.Version}, platform = "", platformVersion = {System.Version}) Line 53
at C:\NuGet.Client\src\NuGet.Core\NuGet.Frameworks\NuGetFramework.cs(53)
NuGet.Frameworks.NuGetFramework.NuGetFramework(framework = null, version = {System.Version}) Line 35
at C:\NuGet.Client\src\NuGet.Core\NuGet.Frameworks\NuGetFramework.cs(35)
NuGet.Frameworks.NuGetFramework.NuGetFramework(framework = null) Line 30
at C:\NuGet.Client\src\NuGet.Core\NuGet.Frameworks\NuGetFramework.cs(30)
NuGet.PackageManagement.VisualStudio.PackageReferenceProject<System.Collections.Generic.Dictionary<string, NuGet.PackageManagement.VisualStudio.Utility.ProjectInstalledPackage>, System.Collections.Generic.KeyValuePair<string, NuGet.PackageManagement.VisualStudio.Utility.ProjectInstalledPackage>>.GetInstalledAndTransitivePackagesAsync(includeTransitivePackages = true, includeTransitiveOrigins = true, token = IsCancellationRequested = false) Line 229
at C:\NuGet.Client\src\NuGet.Clients\NuGet.PackageManagement.VisualStudio\Projects\PackageReferenceProject.cs(229)
[Async Call Stack]
[Async] NuGet.PackageManagement.VisualStudio.PackageReferenceProject<System.Collections.Generic.Dictionary<string, NuGet.PackageManagement.VisualStudio.Utility.ProjectInstalledPackage>, System.Collections.Generic.KeyValuePair<string, NuGet.PackageManagement.VisualStudio.Utility.ProjectInstalledPackage>>.GetInstalledAndTransitivePackagesAsync(includeTransitiveOrigins = true, token = IsCancellationRequested = false) Line 120
at C:\NuGet.Client\src\NuGet.Clients\NuGet.PackageManagement.VisualStudio\Projects\PackageReferenceProject.cs(120)
[External Code]
[Async] NuGet.PackageManagement.VisualStudio.NuGetProjectManagerService.GetInstalledAndTransitivePackagesAsync(projectIds = {string[1]}, includeTransitiveOrigins = true, cancellationToken = IsCancellationRequested = false) Line 190
at C:\NuGet.Client\src\NuGet.Clients\NuGet.PackageManagement.VisualStudio\Services\NuGetProjectManagerService.cs(190)
[External Code]
[Async] NuGet.PackageManagement.VisualStudio.IProjectContextInfoExtensions.GetInstalledAndTransitivePackagesAsync(projectContextInfo = {NuGet.VisualStudio.Internal.Contracts.ProjectContextInfo}, serviceBroker = "Process view", includeTransitiveOrigins = true, cancellationToken = IsCancellationRequested = false) Line 75
at C:\NuGet.Client\src\NuGet.Clients\NuGet.PackageManagement.VisualStudio\Common\IProjectContextInfoExtensions.cs(75)
[External Code]
[Async] NuGet.PackageManagement.VisualStudio.PackageCollection.GetInstalledAndTransitivePackagesAsync(serviceBroker = "Process view", projectContextInfos = {NuGet.VisualStudio.Internal.Contracts.IProjectContextInfo[1]}, includeTransitiveOrigins = true, cancellationToken = IsCancellationRequested = false) Line 74
at C:\NuGet.Client\src\NuGet.Clients\NuGet.PackageManagement.VisualStudio\Common\PackageCollection.cs(74)
[Async] NuGet.PackageManagement.VisualStudio.NuGetPackageSearchService.CreatePackageFeedAsync(projectContextInfos = {NuGet.VisualStudio.Internal.Contracts.IProjectContextInfo[1]}, targetFrameworks = {string[1]}, itemFilter = Installed, isSolution = false, recommendPackages = false, sourceRepositories = Count = 1, cancellationToken = IsCancellationRequested = false) Line 453
at C:\NuGet.Client\src\NuGet.Clients\NuGet.PackageManagement.VisualStudio\Services\NuGetPackageSearchService.cs(453)
[Async] NuGet.PackageManagement.VisualStudio.NuGetPackageSearchService.SearchAsync(projectContextInfos = {NuGet.VisualStudio.Internal.Contracts.IProjectContextInfo[1]}, packageSources = {NuGet.VisualStudio.Internal.Contracts.PackageSourceContextInfo[1]}, targetFrameworks = {string[1]}, searchText = "", searchFilter = {NuGet.Protocol.Core.Types.SearchFilter}, itemFilter = Installed, isSolution = false, useRecommender = false, cancellationToken = IsCancellationRequested = false) Line 267
at C:\NuGet.Client\src\NuGet.Clients\NuGet.PackageManagement.VisualStudio\Services\NuGetPackageSearchService.cs(267)
[External Code]
[Async] NuGet.PackageManagement.UI.PackageItemLoader.SearchAsync(cancellationToken = IsCancellationRequested = false) Line 228
at C:\NuGet.Client\src\NuGet.Clients\NuGet.PackageManagement.UI\PackageItemLoader.cs(228)

[donnie-msft]

Triage: assigning based on Martin thinking this is related to his ongoing work