QCTraceSimulator errors with "Sequence contains no elements."

[wjyoumans]

Describe the bug

When creating a new QCTraceSimulator I get Unhandled exception. System.InvalidOperationException: Sequence contains no elements.

To Reproduce

I started a new project with the commands:

dotnet new classlib -lang Q# -o quantum
dotnet new console -lang C# -o host
cd host
dotnet add reference ../quantum/quantum.csproj

Then change host/Program.cs to the following and run.

using System;
using Microsoft.Quantum.Simulation.Core;
using Microsoft.Quantum.Simulation.Simulators;
using Microsoft.Quantum.Simulation.Simulators.QCTraceSimulators;

namespace host
{
    class Program
    {
        static void Main(string[] args)
        {
            var sim = new QCTraceSimulator();
        }
    }
}

Expected behavior

I expect this code to not error and terminate quietly.

Actual behavior

The code errors with:

Unhandled exception. System.InvalidOperationException: Sequence contains no elements
   at System.Linq.ThrowHelper.ThrowNoElementsException()
   at System.Linq.Enumerable.First[TSource](IEnumerable`1 source)
   at Microsoft.Quantum.Simulation.Simulators.QCTraceSimulators.Implementation.QCTraceSimulatorImpl.RegisterPrimitiveOperationsGivenAsCircuits(Assembly coreAssembly)
   at Microsoft.Quantum.Simulation.Simulators.QCTraceSimulators.Implementation.QCTraceSimulatorImpl..ctor(QCTraceSimulatorConfiguration config, Assembly coreAssembly)
   at Microsoft.Quantum.Simulation.Simulators.QCTraceSimulators.QCTraceSimulator..ctor(QCTraceSimulatorConfiguration config, Assembly coreAssembly)
   at Microsoft.Quantum.Simulation.Simulators.QCTraceSimulators.QCTraceSimulator..ctor()
   at host.Program.Main(String[] args) in /path/to/host/Program.cs:line 12

System information

• OS: Ubuntu 18.04

• .NET Core Version: 5.0.103

• IQ# Version

iqsharp: 0.15.2102129448
Jupyter Core: 1.5.0.0
.NET Runtime: .NETCoreApp,Version=v3.1

• Python Version (if applicable) NA

[tcNickolas]

I'm getting this issue too, with slightly more complicated code that used to work with QDK 0.12.20100504 (and as recently as 0.15.2101125897) but throws this error with 0.15.2102129448.

You can repro the repro here (the project version of the code). It does contain H gates, so it shouldn't be the same as #540.