diff --git a/lib/core/SymbolExtractor.py b/lib/core/SymbolExtractor.py
index c61a146..bfd7a8d 100644
--- a/lib/core/SymbolExtractor.py
+++ b/lib/core/SymbolExtractor.py
@@ -23,6 +23,7 @@ class ASTSymbolExtractor:
 
     def extract(self, file_path: str) -> ModuleSymbols:
         """提取文件中的所有符号信息"""
+        setattr(self._symtab, 'CurrentFile', file_path)
         with open(file_path, 'r', encoding='utf-8') as f:
             code: str = f.read()
         tree: ast.Module = ast.parse(code, file_path)
diff --git a/lib/core/TypeAnnotationResolver.py b/lib/core/TypeAnnotationResolver.py
index 959d46d..c0abfe0 100644
--- a/lib/core/TypeAnnotationResolver.py
+++ b/lib/core/TypeAnnotationResolver.py
@@ -963,9 +963,14 @@ class TypeAnnotationResolver:
             return CTypeInfo()
 
         if isinstance(Current, ast.Name) and Current.id in ("t", "c"):
+            FullName: str = f'{Current.id}.{TypeName}'
+            Line: int = getattr(Node, 'lineno', 0) or 0
+            Col: int = (getattr(Node, 'col_offset', 0) or 0) + 1
+            File: str = getattr(SymbolTable, 'CurrentFile', '') or ''
+            Where: str = f'{File}:{Line}:{Col}' if File else f'第 {Line} 行第 {Col} 列'
             raise TypeError(
-                f"[TPC] 类型注解不再接受 \"{Current.id}.\" 模块前缀；"
-                f"请直接写内建类型名（如 CPtr、CInt、CArray）。")
+                f"[TPC] 类型注解不支持模块前缀 \"{FullName}\"（{Where}）。"
+                f"请改写为 \"{TypeName}\"；指针写 CPtr[T] / rawptr[T]。")
         # 解析 import 别名: 如 import vpsdk.window as window -> window -> vpsdk.window
         if ModulePath:
             resolved: bool = False