The constraint reference slug could not be resolved to a type

[luisflsmarques]

Hi - when I tried to run the GettingStarted.AspNetCore.EvaluationSession sample (updated to enable the Esquio routing endpoint), I have started seeing this error (The constraint reference 'slug' could not be resolved to a type) which previously didn't happen (I pulled from the repo today so maybe something may have changed). Stack trace is below. I fixed it temporarily by copying the SlugRouteConstraint class into the sample and registering in the startup class as below. This is however a quick dirty fix... Any ideas on the proper fix?

services.Configure(options =>
{
options.ConstraintMap.Add("slug", typeof(SlugRouteConstraint));
});

System.InvalidOperationException: The constraint reference 'slug' could not be resolved to a type. Register the constraint type with 'Microsoft.AspNetCore.Routing.RouteOptions.ConstraintMap'.
at Microsoft.AspNetCore.Routing.DefaultParameterPolicyFactory.Create(RoutePatternParameterPart parameter, String inlineText)
at Microsoft.AspNetCore.Routing.ParameterPolicyFactory.Create(RoutePatternParameterPart parameter, RoutePatternParameterPolicyReference reference)
at Microsoft.AspNetCore.Routing.Matching.DfaMatcherBuilder.CreateCandidate(Endpoint endpoint, Int32 score)
at Microsoft.AspNetCore.Routing.Matching.DfaMatcherBuilder.CreateCandidates(IReadOnlyList1 endpoints) at Microsoft.AspNetCore.Routing.Matching.DfaMatcherBuilder.AddNode(DfaNode node, DfaState[] states, Int32 exitDestination) at Microsoft.AspNetCore.Routing.Matching.DfaMatcherBuilder.AddNode(DfaNode node, DfaState[] states, Int32 exitDestination) at Microsoft.AspNetCore.Routing.Matching.DfaMatcherBuilder.AddNode(DfaNode node, DfaState[] states, Int32 exitDestination) at Microsoft.AspNetCore.Routing.Matching.DfaMatcherBuilder.<AddNode>g__Transition|26_0(DfaNode next, <>c__DisplayClass26_0& ) at Microsoft.AspNetCore.Routing.Matching.DfaMatcherBuilder.AddNode(DfaNode node, DfaState[] states, Int32 exitDestination) at Microsoft.AspNetCore.Routing.Matching.DfaMatcherBuilder.AddNode(DfaNode node, DfaState[] states, Int32 exitDestination) at Microsoft.AspNetCore.Routing.Matching.DfaMatcherBuilder.AddNode(DfaNode node, DfaState[] states, Int32 exitDestination) at Microsoft.AspNetCore.Routing.Matching.DfaMatcherBuilder.AddNode(DfaNode node, DfaState[] states, Int32 exitDestination) at Microsoft.AspNetCore.Routing.Matching.DfaMatcherBuilder.AddNode(DfaNode node, DfaState[] states, Int32 exitDestination) at Microsoft.AspNetCore.Routing.Matching.DfaMatcherBuilder.Build() at Microsoft.AspNetCore.Routing.Matching.DataSourceDependentMatcher.CreateMatcher(IReadOnlyList1 endpoints)
at Microsoft.AspNetCore.Routing.DataSourceDependentCache1.Initialize() at System.Threading.LazyInitializer.EnsureInitializedCore[T](T& target, Boolean& initialized, Object& syncLock, Func1 valueFactory)
at System.Threading.LazyInitializer.EnsureInitialized[T](T& target, Boolean& initialized, Object& syncLock, Func1 valueFactory) at Microsoft.AspNetCore.Routing.Matching.DataSourceDependentMatcher..ctor(EndpointDataSource dataSource, Lifetime lifetime, Func1 matcherBuilderFactory)
at Microsoft.AspNetCore.Routing.Matching.DfaMatcherFactory.CreateMatcher(EndpointDataSource dataSource)
at Microsoft.AspNetCore.Routing.EndpointRoutingMiddleware.InitializeCoreAsync()
--- End of stack trace from previous location ---
at Microsoft.AspNetCore.Routing.EndpointRoutingMiddleware.g__AwaitMatcher|8_0(EndpointRoutingMiddleware middleware, HttpContext httpContext, Task`1 matcherTask)
at Microsoft.AspNetCore.Diagnostics.DeveloperExceptionPageMiddleware.Invoke(HttpContext context)

[unaizorrilla]

Hi @luisflsmarques

Let me investigate the issue and try to reproduce it!

[unaizorrilla]

Hi @luisflsmarques

After review the sample I can't reproduce the issue, and is a surprise the relation between slug constraint and this sample because slug is a constraint included on the UI and not used on Esquio libraries

[unaizorrilla]

Closed because no interaction