如何修复 ESP32 ESP_LOGI(...) 错误: expected ')' before 'msg'

问题：

你的项目中有类似这样的代码

esp_log_fix.cpp

ESP_LOGI("MyTag", msg);

ESP_LOGI("MyTag", msg);

其中 msg 是 const char*，但项目编译失败，错误消息类似

esp_logi_error.txt

src/main.cpp:280:26: error: expected ')' before 'msg'
  280 |         ESP_LOGI("MyTag", msg);

src/main.cpp:280:26: error: expected ')' before 'msg'
  280 |         ESP_LOGI("MyTag", msg);

format 参数不能是任何字符串，需要是字符串常量。将你的代码替换为

esp_logi_fix.cpp

ESP_LOGI("MyTag", "%s", msg);

ESP_LOGI("MyTag", "%s", msg);

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