¿Cómo puedo rectificar este problema?
Estoy usando la última versión.
ActionController::UrlGenerationError (No route matches {}, missing required keys: [:dumbcourse_base_path])
app/models/api_key_scope.rb:310:in 'block in ApiKeyScope.find_urls'
app/models/api_key_scope.rb:309:in 'Array#each'
app/models/api_key_scope.rb:309:in 'ApiKeyScope.find_urls'
app/models/api_key_scope.rb:290:in 'block (2 levels) in ApiKeyScope.parse_resources!'
app/models/api_key_scope.rb:289:in 'Hash#each_value'
app/models/api_key_scope.rb:289:in 'block in ApiKeyScope.parse_resources!'
app/models/api_key_scope.rb:288:in 'Hash#each_value'
app/models/api_key_scope.rb:288:in 'ApiKeyScope.parse_resources!'
app/models/api_key_scope.rb:271:in 'ApiKeyScope.default_mappings'
app/models/api_key_scope.rb:279:in 'ApiKeyScope.scope_mappings'
app/controllers/admin/api_controller.rb:37:in 'Admin::ApiController#scopes'
app/controllers/application_controller.rb:443:in 'block in ApplicationController#with_resolved_locale'
app/controllers/application_controller.rb:443:in 'ApplicationController#with_resolved_locale'
app/controllers/application_controller.rb:1094:in 'ApplicationController#ensure_dont_cache_page'
lib/middleware/omniauth_bypass_middleware.rb:35:in 'Middleware::OmniauthBypassMiddleware#call'
lib/middleware/crawler_hooks.rb:11:in 'Middleware::CrawlerHooks#call'
lib/content_security_policy/middleware.rb:12:in 'ContentSecurityPolicy::Middleware#call'
lib/middleware/anonymous_cache.rb:420:in 'Middleware::AnonymousCache#call'
lib/middleware/csp_script_nonce_injector.rb:12:in 'Middleware::CspScriptNonceInjector#call'
config/initializers/008-rack-cors.rb:14:in 'Discourse::Cors#call'
lib/middleware/default_headers.rb:13:in 'Middleware::DefaultHeaders#call'
config/initializers/100-quiet_logger.rb:20:in 'DiscourseRackQuietAssetsLogger#call'
config/initializers/100-silence_logger.rb:29:in 'SilenceLogger#call'
lib/middleware/enforce_hostname.rb:23:in 'Middleware::EnforceHostname#call'
lib/middleware/request_tracker.rb:321:in 'Middleware::RequestTracker#call'
lib/middleware/overl...