fix

rebar.config

@@ -1,4 +1,33 @@
 {erl_opts, [debug_info, {i, "include"}]}.
+
+{plugins, [
+    {rebar3_gpb_plugin, ".*", {git, "https://github.com/lrascao/rebar3_gpb_plugin.git", {tag, "2.23.8"}}}
+]}.
+
+% ======================
+% 核心：强制指定 proto 路径 + 输出到你的 apps/sdlan
+% ======================
+{gpb_opts, [
+    {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/protobuf"},                % .erl 输出目录
+    {o_hrl, "include"},            % .hrl 输出目录
+    include_as_lib,                % gpb.hrl 通过 -include_lib("gpb/include/gpb.hrl")
+    {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
+]}.
+
+{provider_hooks, [
+    {pre, [
+        {compile, {protobuf, compile}},
+        {clean, {protobuf, clean}}
+    ]}
+]}.
+
 {deps, [
     {sync, ".*", {git, "https://github.com/rustyio/sync.git", {branch, "master"}}},
     {jiffy, ".*", {git, "https://github.com/davisp/jiffy.git", {tag, "1.1.2"}}},