Arduino IDE错误，espcomm_upload_mem失败的原因？

编译无误：
代码：全选#include "ESP8266WiFi.h"
#include "UbidotsMicroESP8266.h"
#define TOKEN  "YdtbEvgKnwVssEDK2wzMqmnGjuOnxU"  // Put here your Ubidots TOKEN
#define WIFISSID "Untrusted-Network"
#define PASSWORD "12345"

Ubidots client(TOKEN);

void setup(){
    Serial.begin(9600);
    delay(10);
    client.wifiConnection(WIFISSID, PASSWORD);
}
void loop(){
    float value = analogRead(A0);
    client.add("Temperature", value);
    client.sendAll(true);
}

但是在上传到 NodeMcu Lua ESP8266 CH340G ESP-12E 时
代码：全选Uploading 237408 bytes from C:\Users\flash_os\AppData\Local\Temp\build8017001818300400212.tmp/sketch_jul29b.cpp.bin to flash at 0x00000000
error: failed sending 1072 bytes
...
.error: failed sending 1072 bytes
warning: espcomm_send_command: didn't receive command response
warning: espcomm_send_command(FLASH_DOWNLOAD_DATA) failed
warning: espcomm_send_command: wrong direction/command: 0x01 0x03, expected 0x01 0x04
error: espcomm_upload_mem failed