nbgv install command can not find 'Nuget.ProjectModel'

[B45man]

I have a freshly created Blazor project. Following the recommended guide, I run the command dotnet tool install -g nbgv (in a PowerShell window with admin rights). After this, in the root of my project, I run nbgv install (again, PowerShell with admin rights). I see a version.json file being created in the folder, but immediately after this I get an exception in my console. What am I doing wrong?

Unhandled exception:
Unhandled Exception: System.Reflection.TargetInvocationException: Exception has been thrown by the target of an invocation. ---> System.IO.FileNotFoundException: Could not load file or assembly 'NuGet.ProjectModel, Version=4.9.3.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35'. The system cannot find the file specified. ---> System.IO.FileNotFoundException: Could not load file or assembly 'NuGet.ProjectModel, Version=4.9.3.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35'. The system cannot find the file specified.
at System.Reflection.RuntimeAssembly.nLoad(AssemblyName fileName, String codeBase, RuntimeAssembly locationHint, StackCrawlMark& stackMark, IntPtr pPrivHostBinder, Boolean throwOnFileNotFound, IntPtr ptrLoadContextBinder)
at System.Reflection.RuntimeAssembly.InternalLoadAssemblyName(AssemblyName assemblyRef, RuntimeAssembly reqAssembly, StackCrawlMark& stackMark, IntPtr pPrivHostBinder, Boolean throwOnFileNotFound, IntPtr ptrLoadContextBinder)
at System.Reflection.Assembly.Load(AssemblyName assemblyRef, IntPtr ptrLoadContextBinder)
at System.Runtime.Loader.AssemblyLoadContext.LoadFromAssemblyName(AssemblyName assemblyName)
at System.Runtime.Loader.AssemblyLoadContext.ResolveUsingLoad(AssemblyName assemblyName)
at System.Runtime.Loader.AssemblyLoadContext.Resolve(IntPtr gchManagedAssemblyLoadContext, AssemblyName assemblyName)
--- End of inner exception stack trace ---
at System.Reflection.CustomAttribute._CreateCaObject(RuntimeModule pModule, IRuntimeMethodInfo pCtor, Byte** ppBlob, Byte* pEndBlob, Int32* pcNamedArgs)
at System.Reflection.CustomAttribute.CreateCaObject(RuntimeModule module, IRuntimeMethodInfo ctor, IntPtr& blob, IntPtr blobEnd, Int32& namedArgs)
at System.Reflection.CustomAttribute.GetCustomAttributes(RuntimeModule decoratedModule, Int32 decoratedMetadataToken, Int32 pcaCount, RuntimeType attributeFilterType, Boolean mustBeInheritable, IList derivedAttributes)
at System.Reflection.CustomAttribute.GetCustomAttributes(RuntimeMethodInfo method, RuntimeType caType, Boolean inherit)
at System.Attribute.GetCustomAttributes(MemberInfo element, Type type, Boolean inherit)
at System.Reflection.CustomAttributeExtensions.GetCustomAttributes[T](MemberInfo element)
at System.Diagnostics.StackTrace.TryResolveStateMachineMethod(MethodBase& method, Type& declaringType)
at System.Diagnostics.StackTrace.ToString(TraceFormat traceFormat)
at System.Exception.GetStackTrace(Boolean needFileInfo)
at System.Exception.ToString(Boolean needFileLineInfo, Boolean needMessage)
at System.Exception.ToString(Boolean needFileLineInfo, Boolean needMessage)
at System.CommandLine.Builder.CommandLineBuilderExtensions.g__Default|14_1(Exception exception, InvocationContext context)
at System.CommandLine.Builder.CommandLineBuilderExtensions.<>c__DisplayClass14_0.<b__0>d.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
at System.CommandLine.Builder.CommandLineBuilderExtensions.<>c.<b__5_0>d.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
at System.CommandLine.Invocation.InvocationPipeline.Invoke(IConsole console)
at Nerdbank.GitVersioning.Tool.Program.MainInner(String[] args) in D:\a\1\s\src\nbgv\Program.cs:line 225
--- End of inner exception stack trace ---
at System.RuntimeMethodHandle.InvokeMethod(Object target, Object[] arguments, Signature sig, Boolean constructor, Boolean wrapExceptions)
at System.Reflection.RuntimeMethodInfo.Invoke(Object obj, BindingFlags invokeAttr, Binder binder, Object[] parameters, CultureInfo culture)
at Nerdbank.GitVersioning.Tool.Program.Main(String[] args) in D:\a\1\s\src\nbgv\Program.cs:line 75

[KalleOlaviNiemitalo]

NuGet.ProjectModel (assembly version 4.9.3.0) is referenced by NuGet.PackageManagement.dll (assembly version 4.9.3.0, AssemblyInformationalVersionAttribute "4.9.3+e5150f1e119e456e01c4f1e413213d392eda1c3a") in nbgv/3.4.231. NuGet.PackageManagement/4.9.3 depends on NuGet.Commands (>= 4.9.3), which depends on NuGet.ProjectModel (>= 4.9.3), so I think it's a bug in nbgv if the DLL is not included in the .NET tool package.

[B45man]

I (temporarily?) solved this by uninstalling nbgv:

dotnet tool uninstall -g nbgv

Then installing version 3.1.91:

dotnet tool install -g nbgv --ignore-failed-sources --version 3.1.91

Running nbgv install in the root folder now creates a version.json and Directory.Build.props file.

[KalleOlaviNiemitalo]

@B45man, which version of .NET SDK did you use for dotnet tool install -g nbgv?

[B45man]

I’m not sure @KalleOlaviNiemitalo, how do I check this?

[KalleOlaviNiemitalo]

I wanted to file an issue at https://github.com/dotnet/runtime/ for making StackTrace recover from missing assemblies but I'm not sure which version of the runtime was being used here.

[AArnott]

Duplicate of #588