c++ - 编译 Arduino 代码(NodeMCU)时出错
问题描述
我一直在使用 NodeMCU 1 周,但昨天突然,在再次编译 NodeMCU 时,像往常一样,它在编译期间显示错误并且没有上传代码。请帮我摆脱它。
这是即将到来的错误
Arduino: 1.8.12 (Windows 8.1), Board: "NodeMCU 1.0 (ESP-12E Module), 80 MHz, Flash, Legacy (new can return nullptr), All SSL ciphers (most compatible), 4MB (FS:2MB OTA:~1019KB), 2, v2 Lower Memory, Disabled, None, Only Sketch, 115200"
In file included from C:\Users\Govind\Documents\Arduino\libraries\arduino_238892\src/BlynkApiArduino.h:14:0,
from C:\Users\Govind\Documents\Arduino\libraries\arduino_238892\src/BlynkSimpleEsp8266.h:24,
from C:\Users\Govind\Desktop\Stepper_Motor_Joystick_2.21\Stepper_Motor_Joystick_2.21.ino:3:
C:\Users\Govind\Documents\Arduino\libraries\arduino_238892\src/Blynk/BlynkApi.h: In instantiation of 'void BlynkApi<Proto>::syncVirtual(Args ...) [with Args = {}; Proto = BlynkProtocol<BlynkArduinoClientGen<Client> >]':
C:\Users\Govind\Desktop\Stepper_Motor_Joystick_2.21\Stepper_Motor_Joystick_2.21.ino:69:25: required from here
C:\Users\Govind\Documents\Arduino\libraries\arduino_238892\src/Blynk/BlynkApi.h:143:9: error: no matching function for call to 'BlynkParam::add_multi()'
cmd.add_multi(pins...);
^
C:\Users\Govind\Documents\Arduino\libraries\arduino_238892\src/Blynk/BlynkApi.h:143:9: note: candidates are:
In file included from C:\Users\Govind\Documents\Arduino\libraries\arduino_238892\src/Blynk/BlynkApi.h:16:0,
from C:\Users\Govind\Documents\Arduino\libraries\arduino_238892\src/BlynkApiArduino.h:14,
from C:\Users\Govind\Documents\Arduino\libraries\arduino_238892\src/BlynkSimpleEsp8266.h:24,
from C:\Users\Govind\Desktop\Stepper_Motor_Joystick_2.21\Stepper_Motor_Joystick_2.21.ino:3:
C:\Users\Govind\Documents\Arduino\libraries\arduino_238892\src/Blynk/BlynkParam.h:111:10: note: template<class T, class ... Args> void BlynkParam::add_multi(T)
void add_multi(T last) {
^
C:\Users\Govind\Documents\Arduino\libraries\arduino_238892\src/Blynk/BlynkParam.h:111:10: note: template argument deduction/substitution failed:
In file included from C:\Users\Govind\Documents\Arduino\libraries\arduino_238892\src/BlynkApiArduino.h:14:0,
from C:\Users\Govind\Documents\Arduino\libraries\arduino_238892\src/BlynkSimpleEsp8266.h:24,
from C:\Users\Govind\Desktop\Stepper_Motor_Joystick_2.21\Stepper_Motor_Joystick_2.21.ino:3:
C:\Users\Govind\Documents\Arduino\libraries\arduino_238892\src/Blynk/BlynkApi.h:143:9: note: candidate expects 1 argument, 0 provided
cmd.add_multi(pins...);
^
In file included from C:\Users\Govind\Documents\Arduino\libraries\arduino_238892\src/Blynk/BlynkApi.h:16:0,
from C:\Users\Govind\Documents\Arduino\libraries\arduino_238892\src/BlynkApiArduino.h:14,
from C:\Users\Govind\Documents\Arduino\libraries\arduino_238892\src/BlynkSimpleEsp8266.h:24,
from C:\Users\Govind\Desktop\Stepper_Motor_Joystick_2.21\Stepper_Motor_Joystick_2.21.ino:3:
C:\Users\Govind\Documents\Arduino\libraries\arduino_238892\src/Blynk/BlynkParam.h:116:10: note: template<class T, class ... Args> void BlynkParam::add_multi(T, Args ...)
void add_multi(T head, Args... tail) {
^
C:\Users\Govind\Documents\Arduino\libraries\arduino_238892\src/Blynk/BlynkParam.h:116:10: note: template argument deduction/substitution failed:
In file included from C:\Users\Govind\Documents\Arduino\libraries\arduino_238892\src/BlynkApiArduino.h:14:0,
from C:\Users\Govind\Documents\Arduino\libraries\arduino_238892\src/BlynkSimpleEsp8266.h:24,
from C:\Users\Govind\Desktop\Stepper_Motor_Joystick_2.21\Stepper_Motor_Joystick_2.21.ino:3:
C:\Users\Govind\Documents\Arduino\libraries\arduino_238892\src/Blynk/BlynkApi.h:143:9: note: candidate expects 2 arguments, 0 provided
cmd.add_multi(pins...);
^
exit status 1
Error compiling for board NodeMCU 1.0 (ESP-12E Module).
This report would have more information with
"Show verbose output during compilation"
option enabled in File -> Preferences.
我目前正在尝试使用AccelStepper库和Blynk库运行步进电机,还包括用于连接的Esp8266库。我无法理解问题
解决方案
看起来您在没有任何参数的情况下调用了 Blynk.syncVirtual()。您需要至少包含一个虚拟引脚,如下所示:
Blynk.syncVirtual(V4);
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