diff --git a/README.MD b/README.MD
index 92f0927..d19c7ef 100644
--- a/README.MD
+++ b/README.MD
@@ -15,9 +15,23 @@ rm -rf /usr/bin/rtm
 mv rtm /usr/bin/
 rtm
 ```
+## build amd64 oracle
+```bash
+cd /root
+rm -rf remoteMonitor
+git clone https://git.sre.ink/go/remoteMonitor.git
+cd remoteMonitor
+go get github.com/shirou/gopsutil/v3/cpu@v3.21.12
+go get github.com/shirou/gopsutil/v3/disk@v3.21.12
+CGO_ENABLED=0 GOOS=linux GOARCH=amd64 GO111MODULE=on  go build -v -a -o rtm main.go
+chmod +x rtm
+rm -rf /usr/bin/rtm
+mv rtm /usr/bin/
+rtm
+```
 
 
-## build
+## build amd64 cn
 ```bash
 cd /root
 rm -rf remoteMonitor
diff --git a/thirdpart/WeChat.go b/thirdpart/WeChat.go
index 9d273a2..8700daf 100644
--- a/thirdpart/WeChat.go
+++ b/thirdpart/WeChat.go
@@ -50,6 +50,9 @@ func get_token(corpid, app_secret string) string {
 		log.Println(err)
 	}
 	token_response := praser_json(string(resp_data))
+	if token_response == nil {
+		return ""
+	}
 	return token_response["access_token"].(string)
 }