arduino-esp32 版本变动导致的 __FlashStringHelper 相关问题

[laxtiz]

基本信息

• 这个问题满足提问指南
• 我阅读了开发文档
• 我使用了最新的库及APP进行测试，但是问题仍然存在
• 我搜索过类似问题的解决方法但是仍然无法解决
• 有设备端的LOG信息
• 有编译报错信息
• 我已填写基本信息

设备信息

• 硬件: [esp32s3]
• 接入方式: [WIFI]
• package版本: [arduino-esp32 2.0.13]
• blinker库版本: [arduino 0.3.10]
• 开发环境: [Arduino]
• 操作系统: [Fedora Workstation 38]

问题描述

起因

• 3月8日，Completely inline the helper pure abstract __FlashStringHelper class espressif/arduino-esp32#7941 改动了F(str) 宏
• 4月20日，arduino-esp32@2.0.8 发布

https://github.com/espressif/arduino-esp32/blob/d3254f75a3e646d733d95cd4c096cba5d3d3a195/cores/esp32/WString.h#L34-L38

变动

• 5月3日，update lib version to v0.3.10 #599 增加了对于ESP32的检测判定，以兼容上游改动
• 5月3日，blinker-library@0.3.10 发布

blinker-library/src/modules/mqtt/Adafruit_MQTT.h

Lines 174 to 182 in c20e2e2

	// Return a printable string version of the error code returned by
	// connect(). This returns a __FlashStringHelper*, which points to a
	// string stored in flash, but can be directly passed to e.g.
	// Serial.println without any further processing.
	#if defined(ESP32)
	const char* connectErrorString(int8_t code);
	#else
	const __FlashStringHelper* connectErrorString(int8_t code);
	#endif

回调

• 5月4日，Revert FlashStringHelper Macros espressif/arduino-esp32#8147 回调了F(str) 宏
• 5月4日，arduino-esp32@2.0.9 发布

https://github.com/espressif/arduino-esp32/blob/3670e2bf2aca822f2e1225fdb0e0796e490005a8/cores/esp32/WString.h#L34-L38

现状

看完我的描述，你就明白，blinker-library@0.3.10 只能兼容 arudino-esp32@2.0.8

arduino-esp32	blinker-library	结果
2.0.8	其他版本	无法编译
2.0.8	0.3.10	兼容
其他版本	0.3.10	无法编译
其他版本	其他版本	兼容

以这家公司的按需开源习惯，目前只能等他们的程序员哪天想起来上号发PR，普通用户自己回退版本吧

上游项目 Adafruit_MQTT_Library 并未跟随此次改动，不受影响

代码

#define BLINKER_MQTT
#define DBLINKER_ESP_SMARTCONFIG
#include <Blinker.h>

const char *authKey = "abcd1234";

void setup()
{
  Blinker.begin(authKey);
}

void loop()
{
}

LOG信息

无

编译信息

In file included from /home/laxtiz/.platformio/packages/framework-arduinoespressif32/cores/esp32/Arduino.h:176,
                 from .pio/libdeps/debug/Blinker/src/modules/mqtt/Adafruit_MQTT.h:25,
                 from .pio/libdeps/debug/Blinker/src/modules/mqtt/Adafruit_MQTT.cpp:22:
.pio/libdeps/debug/Blinker/src/modules/mqtt/Adafruit_MQTT.cpp: In member function 'const char* Adafruit_MQTT::connectErrorString(int8_t)':
/home/laxtiz/.platformio/packages/framework-arduinoespressif32/cores/esp32/WString.h:38:55: error: cannot convert 'const __FlashStringHelper*' to 'const char*' in return
 #define F(string_literal) (FPSTR(PSTR(string_literal)))
                                                       ^
.pio/libdeps/debug/Blinker/src/modules/mqtt/Adafruit_MQTT.cpp:279:22: note: in expansion of macro 'F'
       case 1: return F("The Server does not support the level of the MQTT protocol requested");
                      ^
/home/laxtiz/.platformio/packages/framework-arduinoespressif32/cores/esp32/WString.h:38:55: error: cannot convert 'const __FlashStringHelper*' to 'const char*' in return
 #define F(string_literal) (FPSTR(PSTR(string_literal)))
                                                       ^
.pio/libdeps/debug/Blinker/src/modules/mqtt/Adafruit_MQTT.cpp:280:22: note: in expansion of macro 'F'
       case 2: return F("The Client identifier is correct UTF-8 but not allowed by the Server");
                      ^
/home/laxtiz/.platformio/packages/framework-arduinoespressif32/cores/esp32/WString.h:38:55: error: cannot convert 'const __FlashStringHelper*' to 'const char*' in return
 #define F(string_literal) (FPSTR(PSTR(string_literal)))
                                                       ^
.pio/libdeps/debug/Blinker/src/modules/mqtt/Adafruit_MQTT.cpp:281:22: note: in expansion of macro 'F'
       case 3: return F("The MQTT service is unavailable");
                      ^
/home/laxtiz/.platformio/packages/framework-arduinoespressif32/cores/esp32/WString.h:38:55: error: cannot convert 'const __FlashStringHelper*' to 'const char*' in return
 #define F(string_literal) (FPSTR(PSTR(string_literal)))
                                                       ^
.pio/libdeps/debug/Blinker/src/modules/mqtt/Adafruit_MQTT.cpp:282:22: note: in expansion of macro 'F'
       case 4: return F("The data in the user name or password is malformed");
                      ^
/home/laxtiz/.platformio/packages/framework-arduinoespressif32/cores/esp32/WString.h:38:55: error: cannot convert 'const __FlashStringHelper*' to 'const char*' in return
 #define F(string_literal) (FPSTR(PSTR(string_literal)))
                                                       ^
.pio/libdeps/debug/Blinker/src/modules/mqtt/Adafruit_MQTT.cpp:283:22: note: in expansion of macro 'F'
       case 5: return F("Not authorized to connect");
                      ^
/home/laxtiz/.platformio/packages/framework-arduinoespressif32/cores/esp32/WString.h:38:55: error: cannot convert 'const __FlashStringHelper*' to 'const char*' in return
 #define F(string_literal) (FPSTR(PSTR(string_literal)))
                                                       ^
.pio/libdeps/debug/Blinker/src/modules/mqtt/Adafruit_MQTT.cpp:284:22: note: in expansion of macro 'F'
       case 6: return F("Exceeded reconnect rate limit. Please try again later.");
                      ^
/home/laxtiz/.platformio/packages/framework-arduinoespressif32/cores/esp32/WString.h:38:55: error: cannot convert 'const __FlashStringHelper*' to 'const char*' in return
 #define F(string_literal) (FPSTR(PSTR(string_literal)))
                                                       ^
.pio/libdeps/debug/Blinker/src/modules/mqtt/Adafruit_MQTT.cpp:285:22: note: in expansion of macro 'F'
       case 7: return F("You have been banned from connecting. Please contact the MQTT server administrator for more details.");
                      ^
/home/laxtiz/.platformio/packages/framework-arduinoespressif32/cores/esp32/WString.h:38:55: error: cannot convert 'const __FlashStringHelper*' to 'const char*' in return
 #define F(string_literal) (FPSTR(PSTR(string_literal)))
                                                       ^
.pio/libdeps/debug/Blinker/src/modules/mqtt/Adafruit_MQTT.cpp:286:23: note: in expansion of macro 'F'
       case -1: return F("Connection failed");
                       ^
/home/laxtiz/.platformio/packages/framework-arduinoespressif32/cores/esp32/WString.h:38:55: error: cannot convert 'const __FlashStringHelper*' to 'const char*' in return
 #define F(string_literal) (FPSTR(PSTR(string_literal)))
                                                       ^
.pio/libdeps/debug/Blinker/src/modules/mqtt/Adafruit_MQTT.cpp:287:23: note: in expansion of macro 'F'
       case -2: return F("Failed to subscribe");
                       ^
/home/laxtiz/.platformio/packages/framework-arduinoespressif32/cores/esp32/WString.h:38:55: error: cannot convert 'const __FlashStringHelper*' to 'const char*' in return
 #define F(string_literal) (FPSTR(PSTR(string_literal)))
                                                       ^
.pio/libdeps/debug/Blinker/src/modules/mqtt/Adafruit_MQTT.cpp:288:23: note: in expansion of macro 'F'
       default: return F("Unknown error");
                       ^

[i3water]

该问题5月已处理，建议直接拉取github最新版本而非release版本进行测试。