diff --git a/Cargo.lock b/Cargo.lock
index a66d53f..14317d3 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -288,7 +288,7 @@ checksum = "2dffe52ecf27772e601905b7522cb4ef790d2cc203488bbd0e2fe85fcb74566d"
 
 [[package]]
 name = "mindustry_logic_bang_lang"
-version = "0.13.4"
+version = "0.13.5"
 dependencies = [
  "display_source",
  "lalrpop",
diff --git a/Cargo.toml b/Cargo.toml
index 98637d1..cca8e63 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "mindustry_logic_bang_lang"
-version = "0.13.4"
+version = "0.13.5"
 edition = "2021"
 
 authors = ["A4-Tacks <wdsjxhno1001@163.com>"]
diff --git a/build.rs b/build.rs
index a7f981c..60fa05a 100644
--- a/build.rs
+++ b/build.rs
@@ -1,18 +1,21 @@
 extern crate lalrpop;
 
-use std::fs::remove_dir_all;
+use std::{fs::remove_dir_all, path::Path};
 
 fn main() {
     //lalrpop::process_root().unwrap(); // build to cargo tmp
 
     // build to src
-    // 最多尝试构建三次
+    // 最多尝试构建
     let mut res = Ok(());
-    for _ in 0..3 {
+    for _ in 0..5 {
         res = lalrpop::Configuration::new()
-            .generate_in_source_tree()
             .always_use_colors()
-            .process();
+            .set_in_dir(Path::new("src"))
+            .set_out_dir(Path::new("src"))
+            .emit_comments(false)
+            .process()
+            ;
         if res.is_ok() {
             break;
         }
@@ -36,5 +39,7 @@ fn remove_incremental() {
         },
         "/incremental"
     ].concat();
-    remove_dir_all(incremental_path).unwrap();
+    remove_dir_all(incremental_path).unwrap_or_else(|e| {
+        eprintln!("Warn: 删除增量目录失败 {e}")
+    });
 }
diff --git a/src/main.rs b/src/main.rs
index 58ada11..c15be3c 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -22,7 +22,7 @@ use mindustry_logic_bang_lang::{
         Expand,
         Meta
     },
-    syntax::def::TopLevelParser,
+    syntax::{def::TopLevelParser, line_first_add},
     tag_code::TagCodes,
 };
 
@@ -208,18 +208,26 @@ fn display_ast(ast: &Expand) -> String {
 }
 
 fn build_tag_down(meta: &mut CompileMeta) {
-    let tag_codes = meta.tag_codes_mut();
-    tag_codes.build_tagdown()
-        .unwrap_or_else(|(_line, tag)| {
-            let (tag_str, _id) = meta.tags_map()
-                .iter()
-                .filter(|&(_k, v)| *v == tag)
-                .take(1)
-                .last()
-                .unwrap();
-            err!("重复的标记: {:?}", tag_str);
-            exit(4)
-        })
+    let result = meta.tag_codes_mut().build_tagdown();
+    result.unwrap_or_else(|(_line, tag)| {
+        let (tag_str, _id) = meta.tags_map()
+            .iter()
+            .filter(|&(_k, v)| *v == tag)
+            .take(1)
+            .last()
+            .unwrap();
+        let mut tags_map = meta.debug_tags_map();
+        let mut tag_codes = meta.tag_codes().iter().map(ToString::to_string).collect();
+        line_first_add(&mut tags_map, "\t");
+        line_first_add(&mut tag_codes, "\t");
+        err!(
+            "TagCode:\n{}\nTagsMap:\n{}\n重复的标记: {:?}",
+            tag_codes.join("\n"),
+            tags_map.join("\n"),
+            tag_str,
+        );
+        exit(4)
+    })
 }
 
 type ParseResult<'a> = Result<Expand, ParseError<usize, Token<'a>, Error>>;
diff --git a/src/syntax/def.lalrpop b/src/syntax/def.lalrpop
index 4a82e3f..564fcc2 100644
--- a/src/syntax/def.lalrpop
+++ b/src/syntax/def.lalrpop
@@ -126,9 +126,9 @@ pub Value: Value = {
     },
     <value:Value> "." <attr:NoStringVar> => ValueBind(value.into(), attr).into(),
     // consted-dexp
-    "const" ConstStart <DExp> => {
+    "const" ConstStart <dexp:DExp> <labels:ConstStop> => {
         let tmp_name = meta.get_tmp_var();
-        let dexp_const = Const(tmp_name.clone(), <>.into(), meta.pop_label_scope());
+        let dexp_const = Const(tmp_name.clone(), dexp.into(), labels);
         DExp::new("__".into(), vec![
             dexp_const.into(),
             LogicLine::SetResultHandle(tmp_name.into()),
@@ -573,7 +573,7 @@ OpExprAtom: OpExprInfo = {
 
 // 开始一个const, 开启了必须负责清理
 ConstStart: () = () => meta.add_label_scope();
-ConstStop: Vec<Var> = () => meta.pop_label_scope();
+ConstStop: Vec<Var> = () => Vec::from_iter(meta.pop_label_scope());
 
 pub BuiltinCommand: LogicLine = {
     "const" <mut values:(<Var> "=" ConstStart <Value> <ConstStop>)+> LEnd
diff --git a/src/syntax/mod.rs b/src/syntax/mod.rs
index 56699d0..c2e56e1 100644
--- a/src/syntax/mod.rs
+++ b/src/syntax/mod.rs
@@ -3,7 +3,7 @@ pub mod def;
 use std::{
     ops::Deref,
     num::ParseIntError,
-    collections::HashMap,
+    collections::{HashMap, HashSet},
     iter::{
         zip,
         repeat_with,
@@ -475,7 +475,7 @@ pub struct Meta {
     tmp_var_count: usize,
     tag_number: usize,
     /// 被跳转的label
-    defined_labels: Vec<Vec<Var>>,
+    defined_labels: Vec<HashSet<Var>>,
     break_labels: Vec<Option<Var>>,
     continue_labels: Vec<Option<Var>>,
 }
@@ -484,7 +484,7 @@ impl Default for Meta {
         Self {
             tmp_var_count: 0,
             tag_number: 0,
-            defined_labels: vec![Vec::new()],
+            defined_labels: vec![HashSet::new()],
             break_labels: Vec::new(),
             continue_labels: Vec::new(),
         }
@@ -509,26 +509,26 @@ impl Meta {
     pub fn get_tag(&mut self) -> String {
         let tag = self.tag_number;
         self.tag_number += 1;
-        format!("___{}", tag)
+        self.add_defined_label(format!("___{}", tag))
     }
 
     /// 添加一个被跳转的label到当前作用域
     /// 使用克隆的形式
     pub fn add_defined_label(&mut self, label: Var) -> Var {
         // 至少有一个基层定义域
-        self.defined_labels.last_mut().unwrap().push(label.clone());
+        self.defined_labels.last_mut().unwrap().insert(label.clone());
         label
     }
 
     /// 添加一个标签作用域,
     /// 用于const定义起始
     pub fn add_label_scope(&mut self) {
-        self.defined_labels.push(Vec::new())
+        self.defined_labels.push(HashSet::new())
     }
 
     /// 弹出一个标签作用域,
     /// 用于const定义完成收集信息
-    pub fn pop_label_scope(&mut self) -> Vec<Var> {
+    pub fn pop_label_scope(&mut self) -> HashSet<Var> {
         self.defined_labels.pop().unwrap()
     }
 
@@ -2729,13 +2729,14 @@ impl CompileMeta {
             = self.get_const_value(name).unwrap();
         let mut labels_map = HashMap::with_capacity(labels.len());
         for (tmp_tag, label) in zip(tmp_tags, labels.iter().cloned()) {
-            let maped_label = format!(
-                "{}_const_{}_{}",
-                tmp_tag,
-                &name,
-                &label
-            );
-            labels_map.insert(label, maped_label);
+            labels_map.entry(label).or_insert_with_key(|label| {
+                format!(
+                    "{}_const_{}_{}",
+                    tmp_tag,
+                    &name,
+                    &label
+                )
+            });
         }
         let res = value.clone();
         self.const_expand_tag_name_map.push(labels_map);
diff --git a/tools/tag_code/Cargo.lock b/tools/tag_code/Cargo.lock
index d74e50b..bb852d4 100644
--- a/tools/tag_code/Cargo.lock
+++ b/tools/tag_code/Cargo.lock
@@ -4,4 +4,4 @@ version = 3
 
 [[package]]
 name = "tag_code"
-version = "0.1.2"
+version = "0.1.3"
diff --git a/tools/tag_code/src/lib.rs b/tools/tag_code/src/lib.rs
index 631cf2d..30593b5 100644
--- a/tools/tag_code/src/lib.rs
+++ b/tools/tag_code/src/lib.rs
@@ -618,6 +618,7 @@ impl TagCodes {
                     // :b
                     // :b
                     // ```
+                    self.lines = lines;
                     return Err((i, tag));
                 }
                 map_stack.push(tag);
@@ -633,6 +634,7 @@ impl TagCodes {
             if let &mut Some(tag) = tag {
                 if tag_alias_map.get(&tag).is_some() {
                     // 映射到的目标是重复的
+                    self.lines = lines;
                     return Err((i, tag));
                 }
                 tag_alias_map.insert(tag, tag); // 将自己插入