如何修复 ESP8266 PlatformIO error: WIFI_STA was not declared in this scope

问题：

编译 PlatformIO 固件时，你看到类似这样的错误消息

example-4.txt

src/main.cpp:49:10: error: 'class WiFiClass' has no member named 'mode'
   49 |     WiFi.mode(WIFI_STA);
      |          ^~~~
src/main.cpp:49:15: error: 'WIFI_STA' was not declared in this scope
   49 |     WiFi.mode(WIFI_STA);
      |               ^~~~~~~~

src/main.cpp:49:10: error: 'class WiFiClass' has no member named 'mode'
   49 |     WiFi.mode(WIFI_STA);
      |          ^~~~
src/main.cpp:49:15: error: 'WIFI_STA' was not declared in this scope
   49 |     WiFi.mode(WIFI_STA);
      |               ^~~~~~~~

解决方案

你包含了 WiFi.h 而不是正确的 ESP8266WiFi.h。这会导致多个问题，如 WiFi.begin() 上的重启，即使它正确编译。

替换

example-3.cpp

为

example-2.cpp

在源代码中的所有位置，并且不支持

example-1.txt

有关更多详细信息，请参见我们之前关于如何修复 PlatformIO ESP8266 WiFi.h: No Such File or Directory的文章

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