fix

rebar.config

@@ -10,16 +10,17 @@
 % 核心：强制指定 proto 路径 + 输出到你的 apps/sdlan
 % ======================
 {gpb_opts, [
-    {i, "proto"},    % proto 放在你的 app 里面
-    {src_dirs, ["proto"]},
-    recursive,
-    {module_name_suffix, "_pb"},
-    {o_erl, "src"},
-    {o_hrl, "include"},
-    {strings_as_binaries, true},
-    type_specs,
-    report,
-    verbose
+    {i, "proto"},                 % proto 文件路径
+    {src_dirs, ["proto"]},        % 源码目录（必须）
+    recursive,                     % 递归查找 proto 文件
+    {module_name_suffix, "_pb"},   % 生成模块后缀
+    {o_erl, "src"},                % .erl 输出目录
+    {o_hrl, "include"},            % .hrl 输出目录
+    {hrl_include_lib, "gpb/include/gpb.hrl"},  % ⚡ gpb 内部 record
+    {strings_as_binaries, true},   % proto string → Erlang binary
+    type_specs,                    % 生成 type specs
+    report,                        % 编译报告
+    verbose                        % 打印详细信息
 ]}.
 
 {deps, [

src/sdlan_pb.erl

@@ -46,8 +46,8 @@
 -export([gpb_version_as_string/0, gpb_version_as_list/0]).
 -export([gpb_version_source/0]).
 
+-include_lib("gpb/include/gpb.hrl").
 -include("sdlan_pb.hrl").
--include("gpb.hrl").
 
 %% enumerated types