esp32
2024-05-312451
AI 快速预览详细
本文解决了在使用 ESP32-A2DP 库时遇到的编译错误。具体报错信息为 'max' 未声明。通过将 `max` 替换为 `std::max`，可以解决这个问题。文章详细解析了根因并提供了具体的解决方案，帮助用户快速解决编译错误，节省调试时间。
|
有不有好心人帮我看看，我已经打包上传了，报错的我实在看不懂 In file included from c:\Users\Lenovo\Documents\Arduino\libraries\ESP32-A2DP-main\src\BluetoothA2DPSinkQueued.h:3, from c:\Users\Lenovo\Documents\Arduino\libraries\ESP32-A2DP-main\src\BluetoothA2DPSinkQueued.cpp:2: c:\Users\Lenovo\Documents\Arduino\libraries\ESP32-A2DP-main\src\BluetoothA2DPSink.h: In member function 'virtual void BluetoothA2DPSink::set_avrc_rn_play_pos_callback(void (*)(uint32_t), uint32_t)': c:\Users\Lenovo\Documents\Arduino\libraries\ESP32-A2DP-main\src\BluetoothA2DPSink.h:233:30: error: 'max' was not declared in this scope 233 | this->notif_interval_s = max(notif_interval,(uint32_t)1); | ^~~ c:\Users\Lenovo\Documents\Arduino\libraries\ESP32-A2DP-main\src\BluetoothA2DPSink.h:233:30: note: suggested alternatives: In file included from c:\users\lenovo\appdata\local\arduino15\packages\esp32\tools\xtensa-esp32-elf-gcc\esp-12.2.0_20230208\xtensa-esp32-elf\include\c++\12.2.0\algorithm:61, from c:\Users\Lenovo\Documents\Arduino\libraries\ESP32-A2DP-main\src\SoundData.h:19, from c:\Users\Lenovo\Documents\Arduino\libraries\ESP32-A2DP-main\src\BluetoothA2DPCommon.h:58, from c:\Users\Lenovo\Documents\Arduino\libraries\ESP32-A2DP-main\src\BluetoothA2DPSink.h:17: c:\users\lenovo\appdata\local\arduino15\packages\esp32\tools\xtensa-esp32-elf-gcc\esp-12.2.0_20230208\xtensa-esp32-elf\include\c++\12.2.0\bits\stl_algo.h:5756:5: note: 'std::max' 5756 | max(initializer_list<_Tp> __l, _Compare __comp) | ^~~ In file included from c:\users\lenovo\appdata\local\arduino15\packages\esp32\tools\xtensa-esp32-elf-gcc\esp-12.2.0_20230208\xtensa-esp32-elf\include\c++\12.2.0\algorithm:63: c:\users\lenovo\appdata\local\arduino15\packages\esp32\tools\xtensa-esp32-elf-gcc\esp-12.2.0_20230208\xtensa-esp32-elf\include\c++\12.2.0\bits\ranges_algo.h:3011:29: note: 'std::ranges::max' 3011 | inline constexpr __max_fn max{}; | ^~~ In file included from c:\Users\Lenovo\Documents\Arduino\libraries\ESP32-A2DP-main\src\BluetoothA2DPSink.cpp:16: c:\Users\Lenovo\Documents\Arduino\libraries\ESP32-A2DP-main\src\BluetoothA2DPSink.h: In member function 'virtual void BluetoothA2DPSink::set_avrc_rn_play_pos_callback(void (*)(uint32_t), uint32_t)': c:\Users\Lenovo\Documents\Arduino\libraries\ESP32-A2DP-main\src\BluetoothA2DPSink.h:233:30: error: 'max' was not declared in this scope 233 | this->notif_interval_s = max(notif_interval,(uint32_t)1); | ^~~ c:\Users\Lenovo\Documents\Arduino\libraries\ESP32-A2DP-main\src\BluetoothA2DPSink.h:233:30: note: suggested alternatives: In file included from c:\users\lenovo\appdata\local\arduino15\packages\esp32\tools\xtensa-esp32-elf-gcc\esp-12.2.0_20230208\xtensa-esp32-elf\include\c++\12.2.0\algorithm:61, from c:\Users\Lenovo\Documents\Arduino\libraries\ESP32-A2DP-main\src\SoundData.h:19, from c:\Users\Lenovo\Documents\Arduino\libraries\ESP32-A2DP-main\src\BluetoothA2DPCommon.h:58, from c:\Users\Lenovo\Documents\Arduino\libraries\ESP32-A2DP-main\src\BluetoothA2DPSink.h:17: c:\users\lenovo\appdata\local\arduino15\packages\esp32\tools\xtensa-esp32-elf-gcc\esp-12.2.0_20230208\xtensa-esp32-elf\include\c++\12.2.0\bits\stl_algo.h:5756:5: note: 'std::max' 5756 | max(initializer_list<_Tp> __l, _Compare __comp) | ^~~ In file included from c:\users\lenovo\appdata\local\arduino15\packages\esp32\tools\xtensa-esp32-elf-gcc\esp-12.2.0_20230208\xtensa-esp32-elf\include\c++\12.2.0\algorithm:63: c:\users\lenovo\appdata\local\arduino15\packages\esp32\tools\xtensa-esp32-elf-gcc\esp-12.2.0_20230208\xtensa-esp32-elf\include\c++\12.2.0\bits\ranges_algo.h:3011:29: note: 'std::ranges::max' 3011 | inline constexpr __max_fn max{}; | ^~~ exit status 1 Compilation error: exit status 1 |
-
-
397 Bytes, 下载次数: 3296
https://gitcode.com/pschatzmann/ESP32-A2DP?utm_source=csdn_github_accelerator&isLogin=1
是跟着CSDN上一步一步学的https://blog.csdn.net/donghaodonghaodo/article/details/133635414
如果是编译问题，你需要把你编译过程中所有需要的“轮子”都提供在论坛里面。
如果原始代码也不是你写的，你需要把源代码在哪里找到的也提供出来。
这样能节省大家的时间