# An error occurred The event RideUpdated has a topic that is not supported by the AsyncAPI specificat **URL:** \ **Category:** Solace Event Portal\ **Created:** [March 15, 2022, 3:07pm UTC](https://community.solace.com/t/an-error-occurred-the-event-rideupdated-has-a-topic-that-is-not-supported-by-the-asyncapi-specificat/1187 "2022-03-15T15:07:52Z")\ **Posts on this page:** 4\ **Page:** 1
**Author:** ![mewren](https://avatars.discourse-cdn.com/v4/letter/m/57b2e6/32.png) [@mewren](https://community.solace.com/u/mewren)\ **Post date:** [March 15, 2022, 3:07pm UTC](https://community.solace.com/t/an-error-occurred-the-event-rideupdated-has-a-topic-that-is-not-supported-by-the-asyncapi-specificat/1187/1 "2022-03-15T15:07:52Z")
I am doing the tutorial: Be Real-Time: Design, Document, Discover and Develop Event… [Be Real-Time: Design, Document, Discover and Develop Event-Driven APIs](https://codelabs.solace.dev/codelabs/design-document-discover-develop-event-driven-apis/index.html?index=..%2F..index#10) I am on Step 11 and exporting the YAML from the ProcessPayment application I get this error after I select YAML and click the button: An error occurredThe event RideUpdated has a topic that is not supported by the AsyncAPI specification. Topic addresses must only contain letters, numbers and one or more of the following special characters: !#$&()\*+,-./:;=\_~ My RideUpdated topic still has the placeholder ids in it: “taxinyc/ops/ride/updated/v1/${ride\_status}/${driver\_id}/${passenger\_id}/${current\_latitude}/${current\_longitude}” So then I realized that the $ ones were literals, not variables. So I created new variables (I was not able to edit and change from literal to variable). Now my RideUpdated topic is: taxinyc/ops/ride/updated/v1/{${ride\_status3}}/{${driver\_id}}/{${passenger\_id}}/{${current\_latitude}}/{${current\_longitude} } However I still get the error. The tutorial seems a bit out of date visually, all the other changes were fine. But not sure what I am doing wrong here. Update: - I changed the topic again, using just the base strings (as variables) taxinyc/ops/ride/updated/v1/{ride\_status}/{driver\_id}/{passenger\_id}/{current\_latitude}/current\_longitude Now that part passes, but now I get an error on PaymentCharged. I did the tutorial along with the SolaceAcademy video (not the written down steps) - so that is probably just an old version. Video needs updating. " Event Portal - getting started " @Dishant_Langayan@dishantlangayan ---
**Author:** ![giri](https://yyz1.discourse-cdn.com/solace/user_avatar/community.solace.com/giri/32/877_2.png) [@giri](https://community.solace.com/u/giri)\ **Post date:** [March 15, 2022, 3:48pm UTC](https://community.solace.com/t/an-error-occurred-the-event-rideupdated-has-a-topic-that-is-not-supported-by-the-asyncapi-specificat/1187/2 "2022-03-15T15:48:47Z")
Hi @mewren , Thanks for pointing this out. There have been some changes in the Event Portal & the AsyncAPI spec compatibility requires fixing in this codelab. Let us explore this codelab in full context and amend it as necessary at the earliest. Will update you when ready. ---
**Author:** ![mewren](https://avatars.discourse-cdn.com/v4/letter/m/57b2e6/32.png) [@mewren](https://community.solace.com/u/mewren)\ **Post date:** [March 15, 2022, 5:58pm UTC](https://community.solace.com/t/an-error-occurred-the-event-rideupdated-has-a-topic-that-is-not-supported-by-the-asyncapi-specificat/1187/3 "2022-03-15T17:58:06Z")
Thanks, please also look into the ag command in step 11 ag -o ProcessPayment -p binder=solace -p artifactId=ProcessPayment -p groupId=org.taxi.nyc -p javaPackage=org.taxi.nyc -p host=taxi.messaging.solace.cloud:55555 -p username=public-taxi-user -p password=iliketaxis -p msgVpn=nyc-modern-taxi ProcessPayment.yaml @asyncapi/java-spring-cloud-stream-template Something went wrong: Error: ENOENT: no such file or directory, copyfile ‘/xxx/solace\_training/ProcessPayment/src/main/java/#/properties/driver.java’ → ‘/xxx/solace\_training/ProcessPayment/src/main/java/org/taxi/nyc/#/properties/driver.java’    at Object.copyFileSync (node:fs:2802:3)    at moveFile (/usr/local/lib/node\_modules/@asyncapi/generator/node\_modules/@asyncapi/java-spring-cloud-stream-template/hooks/post-process.js:134:6)    at processSchema (/usr/local/lib/node\_modules/@asyncapi/generator/node\_modules/@asyncapi/java-spring-cloud-stream-template/hooks/post-process.js:90:7)    at /usr/local/lib/node\_modules/@asyncapi/generator/node\_modules/@asyncapi/java-spring-cloud-stream-template/hooks/post-process.js:22:7    at Map.forEach ()    at generate:after (/usr/local/lib/node\_modules/@asyncapi/generator/node\_modules/@asyncapi/java-spring-cloud-stream-template/hooks/post-process.js:21:27)    at /usr/local/lib/node\_modules/@asyncapi/generator/lib/generator.js:793:20    at Array.map ()    at Generator.launchHook (/usr/local/lib/node\_modules/@asyncapi/generator/lib/generator.js:790:28)    at Generator.generate (/usr/local/lib/node\_modules/@asyncapi/generator/lib/generator.js:205:18)    at /usr/local/lib/node\_modules/@asyncapi/generator/cli.js:154:9 ---
**Author:** ![giri](https://yyz1.discourse-cdn.com/solace/user_avatar/community.solace.com/giri/32/877_2.png) [@giri](https://community.solace.com/u/giri)\ **Post date:** [April 13, 2022, 1:17pm UTC](https://community.solace.com/t/an-error-occurred-the-event-rideupdated-has-a-topic-that-is-not-supported-by-the-asyncapi-specificat/1187/4 "2022-04-13T13:17:39Z")
Hi @ mewren - please check the codelab now. Following changes have been made to bring the codelab up-to-date and working. a) We now have updated files that are ready for import (have fixes around handling the “$Id” filed issue in the asyncapi codegen tool) b) An issue in the python-paho template has prevented us from completing the InvoiceSystem microservice build action - we have switched this step to use nodejs-template Please review it when you can, and let us know if you encounter any issues. Thanks!!