ESP32 Forum

你好，如题所示，在编译代码时出现如下错误，请问应如何解决？

E:/ESP32/esp-iot-solution/components/usb/uvc_stream/uvc_stream.c:29:10: fatal er
ror: hcd.h: No such file or directory
#include "hcd.h"
^~~~~~~
compilation terminated.
[1008/1221] Building C object esp-idf/..._idf_indicator.dir/led_indicator.c.obj
ninja: build stopped: subcommand failed.
ninja failed with exit code 1

1. 你跑的是 USB 摄像头代码，4G 模组代码在这里 https://github.com/espressif/esp-iot-so ... _4g_module
2. 找不到头文件的问题，在该示例工程 readme 编译示例代码的步骤中有说明 https://github.com/espressif/esp-iot-so ... 3%E7%A0%81，

将 esp-idf/components/usb/CMakeLists.txt 按照以下修改：

idf_component_register(SRCS "hcd.c"
INCLUDE_DIRS "private_include"
PRIV_INCLUDE_DIRS ""
PRIV_REQUIRES hal driver)