error: ExpandEndpoint requires that the replaced endpoint have a unique priority.

[scil]

my site uses netcore3.1.

my homepage encounter this error

An unhandled exception occurred while processing the request.
InvalidOperationException: Using ExpandEndpoint requires that the replaced endpoint have a unique priority. The following endpoints were found with the same priority:
My.Application.Reading.Controllers.HomeController.Index (My.Application.Reading)
/
Microsoft.AspNetCore.Routing.Matching.CandidateSet.ValidateUniqueScore(int index)

Stack Query Cookies Headers Routing
InvalidOperationException: Using ExpandEndpoint requires that the replaced endpoint have a unique priority. The following endpoints were found with the same priority: My.Application.Reading.Controllers.HomeController.Index (My.Application.Reading) /
Microsoft.AspNetCore.Routing.Matching.CandidateSet.ValidateUniqueScore(int index)
Microsoft.AspNetCore.Routing.Matching.CandidateSet.ExpandEndpoint(int index, IReadOnlyList<Endpoint> endpoints, IComparer<Endpoint> comparer)
Microsoft.AspNetCore.Mvc.Routing.DynamicControllerEndpointMatcherPolicy.ApplyAsync(HttpContext httpContext, CandidateSet candidates)
Microsoft.AspNetCore.Routing.Matching.DfaMatcher.SelectEndpointWithPoliciesAsync(HttpContext httpContext, IEndpointSelectorPolicy[] policies, CandidateSet candidateSet)
Microsoft.AspNetCore.Routing.EndpointRoutingMiddleware.<Invoke>g__AwaitMatch|8_1(EndpointRoutingMiddleware middleware, HttpContext httpContext, Task matchTask)
OrchardCore.Diagnostics.DiagnosticsStartupFilter+<>c__DisplayClass3_0+<<Configure>b__1>d.MoveNext()
Microsoft.AspNetCore.Diagnostics.StatusCodePagesMiddleware.Invoke(HttpContext context)
OrchardCore.Modules.ModularTenantRouterMiddleware.Invoke(HttpContext httpContext)
OrchardCore.Modules.ModularTenantContainerMiddleware+<>c__DisplayClass4_0+<<Invoke>b__0>d.MoveNext()
OrchardCore.Environment.Shell.Scope.ShellScope.UsingAsync(Func<ShellScope, Task> execute, bool activateShell)
OrchardCore.Environment.Shell.Scope.ShellScope.UsingAsync(Func<ShellScope, Task> execute, bool activateShell)
OrchardCore.Environment.Shell.Scope.ShellScope.UsingAsync(Func<ShellScope, Task> execute, bool activateShell)
OrchardCore.Environment.Shell.Scope.ShellScope.UsingAsync(Func<ShellScope, Task> execute, bool activateShell)
OrchardCore.Modules.ModularTenantContainerMiddleware.Invoke(HttpContext httpContext)
Microsoft.AspNetCore.Diagnostics.DeveloperExceptionPageMiddleware.Invoke(HttpContext context)

the error occurs after these lined added to Startup.cs

        public void ConfigureServices(IServiceCollection services) {

            services.AddControllers()
                .ConfigureApiBehaviorOptions(options =>
                {
                    
                    // Disable automatic 400 response
                    options.SuppressModelStateInvalidFilter = true;
                    
                    // Disable ProblemDetails response
                    // https://docs.microsoft.com/en-us/aspnet/core/web-api/?view=aspnetcore-3.1#disable-problemdetails-response-2
                    options.SuppressMapClientErrors = true;
                    
                });


               ...

        }
            

I have found that the error insist if I deleted .ConfigureApiBehaviorOptions and keep services.AddControllers().

so the cause the services.AddControllers()

then how can I config ApiController to skip the error?

[scil]

After check the sourcecode of ConfigureApiBehaviorOptions, now I rewrite them to

            services.Configure<ApiBehaviorOptions>(options => {
             ...
            });