diff --git a/jsonx/parse.go b/jsonx/parse.go
index f9c9763..c020739 100644
--- a/jsonx/parse.go
+++ b/jsonx/parse.go
@@ -13,7 +13,7 @@ func setBool(field reflect.Value, value any, path string) error {
 	case string:
 		b, err := strconv.ParseBool(v)
 		if err != nil {
-			return fmt.Errorf("%s: cannot convert %v to bool", path, v)
+			return fmt.Errorf("%s: cannot convert %v to bool, err: %v", path, v, err)
 		}
 		field.SetBool(b)
 	}
diff --git a/jsonx/vars.go b/jsonx/vars.go
index 507ffdc..82c6060 100644
--- a/jsonx/vars.go
+++ b/jsonx/vars.go
@@ -8,10 +8,14 @@ import (
 var (
 	// ErrPoint 不是指针类型
 	ErrPoint = errors.New("the argument to Result must be a non-nil pointer")
+
+	// ErrNotBool 不是Bool类型
+	// ErrNotBool = errors.New("cannot parse bool, value is not a bool")
 	// ErrNotMap 不是Map类型
-	ErrNotMap = errors.New("cannot parse map, value is not a map")
+	// ErrNotMap = errors.New("cannot parse map, value is not a map")
 	// ErrNotSlice 不是Slice类型
-	ErrNotSlice = errors.New("cannot parse slice, value is not a slice")
+	// ErrNotSlice = errors.New("cannot parse slice, value is not a slice")
+
 	// ErrSyntax 指示值不具有目标类型的正确语法
 	ErrSyntax = strconv.ErrSyntax
 	// ErrUnsupported 不支持的类型