无法连接到aspnet core webapi中的Oracle Db

我使用webapi模板创建了一个具有dotnet核心的项目。我正在尝试使用Citms.EntityFrameworkCore.Oracle包将API与Oracle数据库连接起来,因为官方包不是免费的。但每次启动API时,我都会遇到以下错误

context.Set<TEntity>();

public GenericRepository(ApplicationDbContext context)
{
    this.Context = context;
    this.DbSet = context.Set<TEntity>();
}

System.MissingMethodException: 'Method not found: 'Void Microsoft.EntityFrameworkCore.Storage.Internal.RelationalCommandBuilderFactory..ctor(Microsoft.EntityFrameworkCore.Diagnostics.IDiagnosticsLogger`1<Command>, 

启动.cs

public void ConfigureServices(IServiceCollection services)
{
    services.AddMvc().SetCompatibilityVersion(CompatibilityVersion.Version_2_1);

    services.AddDbContext<ApplicationDbContext>(options =>
    {
        //options.UseMySql(Configuration.GetConnectionString("DefaultConnection"));
        options.UseOracle(@"DATA SOURCE = <CONNECTION_STRING>");
    });

    services.AddSwagger();

    //services.AddScoped<IValuesRepository, ValuesRepository>();
    services.AddScoped<IValueService, ValueService>();

    var corsBuilder = new CorsPolicyBuilder();
    corsBuilder.AllowAnyHeader();
    corsBuilder.AllowAnyMethod();
    corsBuilder.AllowAnyOrigin(); 
    corsBuilder.AllowCredentials();

    services.AddCors(options =>
    {
        options.AddPolicy("SiteCorsPolicy", corsBuilder.Build());
    });
}