# json.UnmarshalTypeError

- **ID:** `go/json-unmarshaltypeerror`
- **Domain:** go
- **Category:** type_error
- **Verification:** official
- **Fix Rate:** 80%

## Root Cause

JSON value does not match target type. Expected number but got string, or vice versa.

## Version Compatibility

| Version | Status | Introduced | Deprecated |
|---------|--------|------------|------------|
| 1.x | active | — | — |