Runtime Error Cannot read properties of null (reading '0')

[babakhalid]

Hi,

I'm getting this error when I signed in using Google :
Runtime Error
Cannot read properties of null (reading '0')

This is the link of the app : https://rowy-roadmap-eight.vercel.app/roadmap
log from vercel :
TypeError: Cannot read properties of null (reading '0')
at MissingFirestoreIndex (/var/task/build/build-nodejs-eyJydW50aW1lIjoibm9kZWpzIn0.js:1657:4)
at d (/var/task/node_modules/react-dom/cjs/react-dom-server.node.production.min.js:33:498)
at bb (/var/task/node_modules/react-dom/cjs/react-dom-server.node.production.min.js:36:16)
at a.b.render (/var/task/node_modules/react-dom/cjs/react-dom-server.node.production.min.js:42:43)
at a.b.read (/var/task/node_modules/react-dom/cjs/react-dom-server.node.production.min.js:41:83)
at exports.renderToString (/var/task/node_modules/react-dom/cjs/react-dom-server.node.production.min.js:52:138)
at handleRequest (/var/task/build/build-nodejs-eyJydW50aW1lIjoibm9kZWpzIn0.js:47:49)
at handleDocumentRequest (/var/task/node_modules/@remix-run/server-runtime/dist/server.js:395:18)
at processTicksAndRejections (node:internal/process/task_queues:95:5)
at requestHandler (/var/task/node_modules/@remix-run/server-runtime/dist/server.js:49:18)

Please help

[bofeiw]

Looks like you are self hosting the roadmap. The log indicates there is an issue in this line:
https://github.com/rowyio/roadmap/blob/main/app/components/error/MissingFirestoreIndex.tsx#L14

Does it work if you add try-catch to handle the error?

[babakhalid]

Hi @bofeiw, thank you for your answer.
I used One click deploy to Vercel, I'm not a react developer, can you please elaborate where exactly I need to add the try-catch to handle the error?

[babakhalid]

Thank you I resolved the issue by changing the line you mentioned to :
const link =
error.details.match(
/(http|https)://([\w_-]+(?:(?:.[\w_-]+)+))([\w.,@?^=%&:/+#-]*[\w@?^=%&/+#-])/
)?.[0] ?? "";

[babakhalid]

I'm getting this error : Firestore index required
If you are the app developer click here to create firestore index
and the link to add the index to firestore is empty, can you help me resolve this issue?

Thank you

[vinhnemo]

Hi @babakhalid have you solved this? I faced the same issue here.