roslynanalyzers failing

Hi, I'm trying to set this action up for a project I'm working on to analyze the code.
However every build fails with
```
Error: Error running roslynanalyzers job: 1 of 1
Error: GuardianErrorExitCodeException: roslynanalyzers completed with an Error exit code: 17.
Error: Error running tool 1 of 1: roslynanalyzers
Error: Error running roslynanalyzers job: 1 of 1
Error: GuardianErrorExitCodeException: roslynanalyzers completed with an Error exit code: 17.
```

And I have no clue why. Below is my `.yml` file:
```yml
# sample-workflow-windows-latest
# docs are in the repo

# DISABLED for now - we do not support Ubuntu yet

name: .NET Code Analysis windows-latest
on:
push:
branches:
- master

jobs:
build:
name: .NET Code Analysis runner

# .NET Code Analysis runs on windows-latest.
# ubuntu-latest and macos-latest supporting coming soon
runs-on: windows-latest

steps:

# Checkout your code repository to scan
- uses: actions/checkout@v2

# Ensure compatible versions of dotnet are installed.
# The [Microsoft Code Analysis CLI](https://aka.ms/mscadocs) is built with dotnet v3.1.201.
# A version greater than or equal to v3.1.201 of dotnet must be installed on the agent in order to run this action.
# Remote agents already have a compatible version of dotnet installed and this step may be skipped.
# For local agents, ensure dotnet version 3.1.201 or later is installed by including this action:
# - uses: actions/setup-dotnet@v1
# with:
# dotnet-version: '3.1.x'

# Run NuGet restore for the solution at repo root
- name: Run NuGet restore
run: dotnet restore .\C2TT.sln

# Run code analysis for the solution at repo root
- name: Run .NET Code Analysis
uses: dotnet/code-analysis@main
id: code-analysis
with:
project: .\C2TT.sln
build-breaking: false
all-categories: all

# Upload the analysis results file
- name: Upload analysis results
uses: actions/upload-artifact@v2
with:
name: analysis_results.sarif
path: ${{ steps.code-analysis.outputs.sarifFile }}
```