React basic example not working

[pjnovas]

Hey, I've been using redux-first-router in the past (awesome approach for routing) and since I'm starting a new project I thought I would give Rudy a try.

I followed the steps at https://github.com/respond-framework/rudy/tree/master/examples/react
started the app and hit "Visit users X" button which throws this error in the console:

index.js:1 [rudy] action.type: USER_ERROR TypeError: [rudy]: defaultToPath::toSegment received unknown type
    at toSegment (actionToUrl.js:132)
    at defaultToPath (actionToUrl.js:166)
    at actionToUrl.js:95
    at Array.forEach (<anonymous>)
    at formatParams (actionToUrl.js:80)
    at actionToUrl.js:25
    at formatAction.js:4
    at push../node_modules/@respond-framework/rudy/es/middleware/transformAction/index.js.__webpack_exports__.default (index.js:6)
    at dispatch (compose.js:50)
    at next (compose.js:49)
    at pathlessRoute.js:34
    at dispatch (compose.js:50)
    at next (compose.js:49)
    at push../node_modules/@respond-framework/rudy/es/middleware/anonymousThunk.js.__webpack_exports__.default (anonymousThunk.js:10)
    at dispatch (compose.js:50)
    at next (compose.js:49)
    at push../node_modules/@respond-framework/rudy/es/middleware/serverRedirect.js.__webpack_exports__.default (serverRedirect.js:21)
    at dispatch (compose.js:50)
    at push../node_modules/@respond-framework/rudy/es/core/compose.js.__webpack_exports__.default (compose.js:21)
    at createRouter.js:130
    at visitUser (components.js:20)
    at onClick (components.js:10)
    at HTMLUnknownElement.callCallback (react-dom.development.js:188)
    at Object.invokeGuardedCallbackDev (react-dom.development.js:237)
    at invokeGuardedCallback (react-dom.development.js:292)
    at invokeGuardedCallbackAndCatchFirstError (react-dom.development.js:306)
    at executeDispatch (react-dom.development.js:389)
    at executeDispatchesInOrder (react-dom.development.js:414)
    at executeDispatchesAndRelease (react-dom.development.js:3278)
    at executeDispatchesAndReleaseTopLevel (react-dom.development.js:3287)
    at forEachAccumulated (react-dom.development.js:3259)
    at runEventsInBatch (react-dom.development.js:3304)
    at runExtractedPluginEventsInBatch (react-dom.development.js:3514)
    at handleTopLevel (react-dom.development.js:3558)
    at batchedEventUpdates$1 (react-dom.development.js:21871)
    at batchedEventUpdates (react-dom.development.js:795)
    at dispatchEventForLegacyPluginEventSystem (react-dom.development.js:3568)
    at attemptToDispatchEvent (react-dom.development.js:4267)
    at dispatchEvent (react-dom.development.js:4189)
    at unstable_runWithPriority (scheduler.development.js:653)
    at runWithPriority$1 (react-dom.development.js:11039)
    at discreteUpdates$1 (react-dom.development.js:21887)
    at discreteUpdates (react-dom.development.js:806)
    at dispatchDiscreteEvent (react-dom.development.js:4168)
console.<computed> @ index.js:1
r @ react_devtools_backend.js:6
logError @ logError.js:10
onError @ logError.js:75
(anonymous) @ autoDispatch.js:1
(anonymous) @ index.js:42
(anonymous) @ createRouter.js:135
Promise.catch (async)
(anonymous) @ createRouter.js:130
visitUser @ components.js:20
onClick @ components.js:10
callCallback @ react-dom.development.js:188
invokeGuardedCallbackDev @ react-dom.development.js:237
invokeGuardedCallback @ react-dom.development.js:292
invokeGuardedCallbackAndCatchFirstError @ react-dom.development.js:306
executeDispatch @ react-dom.development.js:389
executeDispatchesInOrder @ react-dom.development.js:414
executeDispatchesAndRelease @ react-dom.development.js:3278
executeDispatchesAndReleaseTopLevel @ react-dom.development.js:3287
forEachAccumulated @ react-dom.development.js:3259
runEventsInBatch @ react-dom.development.js:3304
runExtractedPluginEventsInBatch @ react-dom.development.js:3514
handleTopLevel @ react-dom.development.js:3558
batchedEventUpdates$1 @ react-dom.development.js:21871
batchedEventUpdates @ react-dom.development.js:795
dispatchEventForLegacyPluginEventSystem @ react-dom.development.js:3568
attemptToDispatchEvent @ react-dom.development.js:4267
dispatchEvent @ react-dom.development.js:4189
unstable_runWithPriority @ scheduler.development.js:653
runWithPriority$1 @ react-dom.development.js:11039
discreteUpdates$1 @ react-dom.development.js:21887
discreteUpdates @ react-dom.development.js:806
dispatchDiscreteEvent @ react-dom.development.js:4168

any ideas?