go-delve/delve · error

unable to parse breakpoint hit condition: %q invalid operato

Error message

unable to parse breakpoint hit condition: %q
invalid operator: %q

What it means

Error "unable to parse breakpoint hit condition: %q invalid operator: %q" thrown in go-delve/delve.

Source

Thrown at pkg/proc/target_group.go:521

	opStr := match[1]
	var opTok token.Token
	switch opStr {
	case "==", "":
		opTok = token.EQL
	case ">=":
		opTok = token.GEQ
	case "<=":
		opTok = token.LEQ
	case ">":
		opTok = token.GTR
	case "<":
		opTok = token.LSS
	case "%":
		opTok = token.REM
	case "!=":
		opTok = token.NEQ
	default:
		return 0, 0, fmt.Errorf("unable to parse breakpoint hit condition: %q\ninvalid operator: %q", hitCond, opStr)
	}

	numStr := match[4]
	val, parseErr := strconv.Atoi(numStr)
	if parseErr != nil {
		return 0, 0, fmt.Errorf("unable to parse breakpoint hit condition: %q\ninvalid number: %q", hitCond, numStr)
	}

	return opTok, val, nil
}

// manageUnsatisfiableBreakpoints automatically disables breakpoints with unsatisifiable hit conditions.
func (grp *TargetGroup) manageUnsatisfiableBreakpoints() error {
	for _, lbp := range grp.LogicalBreakpoints {
		if lbp.enabled {
			if lbp.condSatisfiable && !breakpointConditionSatisfiable(grp.LogicalBreakpoints, lbp) {
				lbp.condSatisfiable = false
				err := grp.disableBreakpoint(lbp)

View on GitHub (pinned to a23773e6c3)

When it happens

Trigger: Thrown at pkg/proc/target_group.go:521 when the library encounters an invalid state.

Common situations: See trigger scenarios.

Understand the failure class

• Parsing and encoding errors: unexpected token, malformed input — why parsers reject input and how to find the real culprit.

AI-assisted analysis of go-delve/delve@a23773e6c3 (2026-08-31). Data as JSON: /api/errors/e2ab16d875b4dc4a. Report an issue: GitHub.