MetaMask / MetaMask/metamask-mobile

[Sentry] SyntaxError: JSON Parse error: Unrecognized token '<'

Open
#17,748 0 comments 0 reactions 0 assignees View on GitHub
area-sentry external-contributor INVALID-ISSUE-TEMPLATE regression-prod-7.51.1 team-mobile-platform type-bug
Dominant language
TypeScript
Stars
3k
Forks
1.7k
Avg merge
1d 14h
Merged PRs (30d)
669

Description

Sentry Issue: [METAMASK-MOBILE-402N](https://metamask.sentry.io/issues/6778120201/?referrer=github_integration)

```
SyntaxError: JSON Parse error: Unrecognized token '<'
at parse ([native code])
at tryCallOne (node_modules/promise/setimmediate/core.js:37:12)
at apply (node_modules/promise/setimmediate/core.js:123:15)
at (node_modules/react-native/Libraries/Core/Timers/immediateShim.js:46:16)
```

Contributor guide

Open the contributing guide

Research direction

Start with the linked Sentry issue and its JSON parse stack trace, including the React Native timer path and promise frames. Trace the relevant request or response handling to identify why a value beginning with '<' reaches JSON parsing; done means the reported SyntaxError no longer occurs.

Written by the indexing model from the issue text.

Assessment

Tech stack
react-native, typescript
Domain
mobile
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
25/100

Get new issues in your inbox

A short digest of beginner-friendly GitHub issues.