diff --git a/.idea/encodings.xml b/.idea/encodings.xml
index f49c862..7d25301 100644
--- a/.idea/encodings.xml
+++ b/.idea/encodings.xml
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project version="4">
-  <component name="Encoding">
+  <component name="Encoding" addBOMForNewFiles="with NO BOM">
     <file url="file://$PROJECT_DIR$/common/libex/include/ex/ex_log.h" charset="GBK" />
     <file url="file://$PROJECT_DIR$/common/libex/include/ex/ex_path.h" charset="GBK" />
     <file url="file://$PROJECT_DIR$/common/libex/include/ex/ex_thread.h" charset="GBK" />
@@ -29,11 +29,13 @@
     <file url="file://$PROJECT_DIR$/server/tp_core/core/ts_session.h" charset="GBK" />
     <file url="file://$PROJECT_DIR$/server/tp_core/core/ts_web_rpc.cpp" charset="GBK" />
     <file url="file://$PROJECT_DIR$/server/tp_core/core/ts_web_rpc.h" charset="GBK" />
+    <file url="file://$PROJECT_DIR$/server/tp_core/protocol/rdp/librdp/core/config.h" charset="GBK" />
     <file url="file://$PROJECT_DIR$/server/tp_core/protocol/rdp/rdp_conn.cpp" charset="GBK" />
     <file url="file://$PROJECT_DIR$/server/tp_core/protocol/rdp/rdp_conn.h" charset="GBK" />
     <file url="file://$PROJECT_DIR$/server/tp_core/protocol/rdp/rdp_proxy.cpp" charset="GBK" />
     <file url="file://$PROJECT_DIR$/server/tp_core/protocol/rdp/rdp_session.cpp" charset="GBK" />
     <file url="file://$PROJECT_DIR$/server/tp_core/protocol/rdp/rdp_session.h" charset="GBK" />
+    <file url="file://$PROJECT_DIR$/server/tp_core/protocol/rdp/transport.cpp" charset="GBK" />
     <file url="file://$PROJECT_DIR$/server/tp_core/protocol/ssh/ssh_proxy.cpp" charset="GBK" />
     <file url="file://$PROJECT_DIR$/server/tp_core/protocol/ssh/ssh_proxy.h" charset="GBK" />
     <file url="file://$PROJECT_DIR$/server/tp_core/protocol/ssh/ssh_recorder.cpp" charset="GBK" />
diff --git a/build/.idea/build.iml b/build/.idea/build.iml
index 7cfc769..14585d1 100644
--- a/build/.idea/build.iml
+++ b/build/.idea/build.iml
@@ -1,8 +1,10 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <module type="PYTHON_MODULE" version="4">
   <component name="NewModuleRootManager">
-    <content url="file://$MODULE_DIR$/builder" />
-    <orderEntry type="inheritedJdk" />
+    <content url="file://$MODULE_DIR$/builder">
+      <sourceFolder url="file://$MODULE_DIR$/builder" isTestSource="false" />
+    </content>
+    <orderEntry type="jdk" jdkName="py37" jdkType="Python SDK" />
     <orderEntry type="sourceFolder" forTests="false" />
   </component>
   <component name="TestRunnerService">
diff --git a/build/builder/build-external.py b/build/builder/build-external.py
index f79ab9a..24b8f60 100644
--- a/build/builder/build-external.py
+++ b/build/builder/build-external.py
@@ -318,7 +318,8 @@ class BuilderLinux(BuilderBase):
             cc.w('already exists, skip.')
 
     def _build_openssl(self, file_name):
-        pass  # we do not need build openssl anymore, because first time run build.sh we built Python, it include openssl.
+        # we do not need build openssl anymore, because first time run build.sh we built Python with openssl included.
+        pass
 
     def _build_libuv(self, file_name):
         if not os.path.exists(self.LIBUV_PATH_SRC):
@@ -347,6 +348,8 @@ class BuilderLinux(BuilderBase):
                 # use os.unlink() because some file should be a link.
                 os.unlink(os.path.join(self.PATH_RELEASE, 'lib', i))
 
+        utils.ensure_file_exists(os.path.join(self.PATH_RELEASE, 'lib', 'libuv.a'))
+
     def _build_mbedtls(self, file_name):
         if not os.path.exists(self.MBEDTLS_PATH_SRC):
             os.system('unzip "{}/{}" -d "{}"'.format(PATH_DOWNLOAD, file_name, self.PATH_TMP))
@@ -382,8 +385,6 @@ class BuilderLinux(BuilderBase):
         # fix source file
         utils.ensure_file_exists(os.path.join(PATH_EXTERNAL, 'fix-external', 'mbedtls', 'include', 'mbedtls', 'config.h'))
         utils.copy_file(os.path.join(PATH_EXTERNAL, 'fix-external', 'mbedtls', 'include', 'mbedtls'), os.path.join(self.MBEDTLS_PATH_SRC, 'include', 'mbedtls'), 'config.h')
-        # utils.ensure_file_exists(os.path.join(PATH_EXTERNAL, 'fix-external', 'mbedtls', 'library', 'rsa.c'))
-        # utils.copy_file(os.path.join(PATH_EXTERNAL, 'fix-external', 'mbedtls', 'library'), os.path.join(self.MBEDTLS_PATH_SRC, 'library'), 'rsa.c')
 
         old_p = os.getcwd()
         os.chdir(self.MBEDTLS_PATH_SRC)