diff --git a/.gitignore b/.gitignore
index 63880f228..0319e6d68 100644
--- a/.gitignore
+++ b/.gitignore
@@ -16,8 +16,6 @@
 *.pyc
 *.swp
 .DS_Store
-.vscode
-.vscode/*
 /trunk/Makefile
 /trunk/objs
 /trunk/src/build-qt-Desktop-Debug
@@ -42,4 +40,6 @@ cmake-build-debug
 /trunk/ide/srs_clion/Makefile
 /trunk/ide/srs_clion/cmake_install.cmake
 /trunk/ide/srs_clion/srs
-/trunk/ide/srs_clion/Testing/
\ No newline at end of file
+/trunk/ide/srs_clion/Testing/
+/trunk/ide/vscode-build
+
diff --git a/.vscode/README.md b/.vscode/README.md
new file mode 100644
index 000000000..eb513707b
--- /dev/null
+++ b/.vscode/README.md
@@ -0,0 +1,38 @@
+# Debug with VSCode
+
+Support run and debug with VSCode.
+
+## SRS
+
+Install the following extensions:
+
+- CMake Tools
+- CodeLLDB
+- C/C++ Extension Pack
+
+Open the folder like `~/git/srs` in VSCode.
+Run commmand `> CMake: Configure` to configure the project.
+
+> Note: You can press `Ctrl+R`, then type `CMake: Configure` then select `Clang` as the toolchain.
+
+> Note: The `settings.json` is used to configure the cmake. It will use `${workspaceFolder}/trunk/ide/srs_clion/CMakeLists.txt` 
+> and `${workspaceFolder}/trunk/ide/vscode-build` as the source file and build directory.
+
+Click the `Run > Run Without Debugging` button to start the server.
+
+> Note: The `launch.json` is used for running and debugging. The build will output the binary to
+> `${workspaceFolder}/trunk/ide/vscode-build/srs`.
+
+## Proxy
+
+Install the following extensions:
+
+- Go
+
+Open the folder like `~/git/srs` in VSCode.
+
+Select the `View > Run` and select `Launch srs-proxy` to start the proxy server.
+
+Click the `Run > Run Without Debugging` button to start the server.
+
+> Note: The `launch.json` is used for running and debugging.
diff --git a/.vscode/launch.json b/.vscode/launch.json
new file mode 100644
index 000000000..047efcbfd
--- /dev/null
+++ b/.vscode/launch.json
@@ -0,0 +1,36 @@
+{
+    "version": "0.2.0",
+    "configurations": [
+        {
+          "name": "Launch SRS",
+          "type": "cppdbg",
+          "request": "launch",
+          "program": "${workspaceFolder}/trunk/ide/vscode-build/srs",
+          "args": ["-c", "conf/console.conf"],
+          "stopAtEntry": false,
+          "cwd": "${workspaceFolder}/trunk",
+          "environment": [],
+          "externalConsole": false,
+          "MIMode": "lldb",
+          "setupCommands": [
+            {
+              "description": "Enable pretty-printing for gdb",
+              "text": "-enable-pretty-printing",
+              "ignoreFailures": true
+            }
+          ],
+          "preLaunchTask": "build",
+          "logging": {
+            "engineLogging": true
+          }
+        },
+        {
+          "name": "Launch srs-proxy",
+          "type": "go",
+          "request": "launch",
+          "mode": "auto",
+          "cwd": "${workspaceFolder}/proxy",
+          "program": "${workspaceFolder}/proxy"        
+        }    
+    ]
+}
\ No newline at end of file
diff --git a/.vscode/settings.json b/.vscode/settings.json
new file mode 100644
index 000000000..0d9dbf97b
--- /dev/null
+++ b/.vscode/settings.json
@@ -0,0 +1,5 @@
+{
+    "cmake.sourceDirectory": "${workspaceFolder}/trunk/ide/srs_clion",
+    "cmake.buildDirectory": "${workspaceFolder}/trunk/ide/vscode-build",
+    "cmake.configureOnOpen": false
+}
diff --git a/.vscode/tasks.json b/.vscode/tasks.json
new file mode 100644
index 000000000..98388f3b3
--- /dev/null
+++ b/.vscode/tasks.json
@@ -0,0 +1,17 @@
+{
+    "version": "2.0.0",
+    "tasks": [
+      {
+        "label": "build",
+        "type": "shell",
+        "command": "cmake --build ${workspaceFolder}/trunk/ide/vscode-build",
+        "group": {
+          "kind": "build",
+          "isDefault": true
+        },
+        "problemMatcher": ["$gcc"],
+        "detail": "Build SRS by cmake."
+      }
+    ]
+  }
+  
\ No newline at end of file
diff --git a/proxy/env.go b/proxy/env.go
index 26b014609..d60726354 100644
--- a/proxy/env.go
+++ b/proxy/env.go
@@ -5,7 +5,7 @@ package main
 
 import (
 	"context"
-	"io/ioutil"
+	"io"
 	"os"
 	"path"
 	"strings"
@@ -32,12 +32,14 @@ func loadEnvFile(ctx context.Context) error {
 	}
 	defer file.Close()
 
-	b, err := ioutil.ReadAll(file)
+	b, err := io.ReadAll(file)
 	if err != nil {
 		return errors.Wrapf(err, "read %v", envFile)
 	}
 
 	lines := strings.Split(strings.Replace(string(b), "\r\n", "\n", -1), "\n")
+	logger.Df(ctx, "load env file %v, lines=%v", envFile, len(lines))
+
 	for _, line := range lines {
 		if strings.HasPrefix(strings.TrimSpace(line), "#") {
 			continue