error while building gRPC service in .net 6

I try to follow this tutorial, but I can't run the gRPC service. Here is the output:

Raw output text:

Build started...
1>------ Build started: Project: GrpcGreeter, Configuration: Debug Any CPU ------
1>Build started 12.03.2023 03:04:46.
1>Target GenerateTargetFrameworkMonikerAttribute:
1>  Skipping target "GenerateTargetFrameworkMonikerAttribute" because all output files are up-to-date with respect to the input files.
1>Target _Protobuf_CoreCompile:
1>  C:\Users\Paweł\.nuget\packages\grpc.tools.40.0\build\_protobuf\Google.Protobuf.Tools.targets(280,5): error MSB6006: "C:\Users\Paweł\.nuget\packages\grpc.tools.40.0\tools\windows_x64\protoc.exe" exited with code -1073741819.
1>Done building target "_Protobuf_CoreCompile" in project "GrpcGreeter.csproj" -- FAILED.
1>
1>Done building project "GrpcGreeter.csproj" -- FAILED.
1>
1>Build FAILED.
1>
1>C:\Users\Paweł\.nuget\packages\grpc.tools.40.0\build\_protobuf\Google.Protobuf.Tools.targets(280,5): error MSB6006: "C:\Users\Paweł\.nuget\packages\grpc.tools.40.0\tools\windows_x64\protoc.exe" exited with code -1073741819.
1>    0 Warning(s)
1>    1 Error(s)
1>
1>Time Elapsed 00:00:01.70
========== Build: 0 succeeded, 1 failed, 0 up-to-date, 0 skipped ==========
========== Build started at 3:04 AM and took 02,212 seconds ==========

I was trying with .net 5, 6 and 7, but unfortunately with no success.
I suspect, the problem might be with non-ascii characters in path to nuget packages, but I'm not sure. Thank you in advance for any help.

EDIT:
Here's my proto file. I haven't changed anything here, it was already generated by vs.

syntax = "proto3";

option csharp_namespace = "GrpcGreeter";

package greet;

// The greeting service definition.
service Greeter {
  // Sends a greeting
  rpc SayHello (HelloRequest) returns (HelloReply);
}

// The request message containing the user's name.
message HelloRequest {
  string name = 1;
}

// The response message containing the greetings.
message HelloReply {
  string message = 1;
}

and GreeterService.cs (also auto-generated):

using Grpc.Core;
using GrpcGreeter;

namespace GrpcGreeter.Services
{
    public class GreeterService : Greeter.GreeterBase
    {
        private readonly ILogger<GreeterService> _logger;
        public GreeterService(ILogger<GreeterService> logger)
        {
            _logger = logger;
        }

        public override Task<HelloReply> SayHello(HelloRequest request, ServerCallContext context)
        {
            return Task.FromResult(new HelloReply
            {
                Message = "Hello " + request.Name
            });
        }
    }
}

Verify greet.proto properties...

• Build Action - Protobuf compiler

• gRPC Stub Classes - Server only

If you are not able to see properties, you can check in project file as well.

Once you verify this, re-build project.

Thank you all for your help. I already know what was wrong. It turned out, that it indeed was a problem with non-ascii character (ł) in my path to packages. The solution was to move .nuget directory from my default location to some other directory (with ascii-only characters in path). Then you need to add nuget.config file to solution with this content:

<?xml version="1.0" encoding="utf-8"?>
<configuration>
  <config>
    <add key="globalPackagesFolder" value="[rel_path]\.nuget\packages" />
    <add key="repositoryPath" value="[rel_path]\.nuget\packages" />
  </config>
</configuration>

Where [rel_path] is relative path to your moved .nuget directory. Of course relative to current location of nuget.config file. Thank you for your help though.