Csharp 在 .net 6 webApi 中实现策略模式时出现 System.InvalidOperationException

我有两个策略，分别命名为CompanySyncStrategy和项目同步策略.

CompanySyncStrategy.cs

public class CompanySyncStrategy : ISyncStrategy
    {
        private readonly ICompanyService companyService;

        public CompanySyncStrategy(ICompanyService companyService)
        {
            this.companyService = companyService;
        }

        public void Sync()
        {
            //sync code
        }
    }

项目同步策略

public class 项目同步策略 : ISyncStrategy
{
    private readonly IProjectService projectService;

    public 项目同步策略(IProjectService projectService)
    {
        this.projectService = projectService;
    }

    public void Sync()
    {
        //sync code
    }
}

Program.cs文件如下所示

builder.Services.AddScoped<ICompanyService, CompanyService>();
builder.Services.AddScoped<IProjectService, ProjectService>();

builder.Services.AddScoped<ISyncContext, SyncContext>();
builder.Services.AddScoped<ISyncStrategy, CompanySyncStrategy>();
builder.Services.AddScoped<ISyncStrategy, 项目同步策略>();
builder.Services.AddSingleton<ISyncStrategyFactory, SyncStrategyFactory>();

当try 在运行时获取策略时，我从SyncStrategyFactory得到以下错误

System.InvalidOperationException: 'No service for type 'Strategy.Services.CompanySyncStrategy' has been registered.'个

SyncStrategy yFactory类如下所示

public class SyncStrategyFactory : ISyncStrategyFactory
    {
        private readonly IServiceProvider serviceProvider;

        public SyncStrategyFactory(IServiceProvider serviceProvider)
        {
            this.serviceProvider = serviceProvider;
        }

        public ISyncStrategy GetSyncStrategy(string strategyType)
        {
            switch (strategyType)
            {
                case "company":
                    return serviceProvider.GetRequiredService<CompanySyncStrategy>();
                case "project":
                    return serviceProvider.GetRequiredService<项目同步策略>();
                default:
                    throw new InvalidOperationException();
            }
        }
    }

我不能在这里使用依赖注入吗？ 我做错了什么？