0

I have an ESP8266 program that used to work but is now failing to compile with this error:

C:\...\Arduino\libraries\WiFiManager/WiFiManager.h:25:24: note: in expansion of macro 'PROGMEM'

 const char HTTP_HEAD[] PROGMEM            = "<!DOCTYPE html><html lang=\"en\"><head><meta name=\"viewport\" content=\"width=device-width, initial-scale=1, user-scalable=no\"/><title>{v}</title>";

                        ^

In file included from C:\...\MyEsp.ino:14:0:

C:\...AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.6.3\libraries\ESP8266WebServer\src/ESP8266WebServer.h:33:39: error: previous declaration of 'HTTPMethod HTTP_HEAD'

 enum HTTPMethod { HTTP_ANY, HTTP_GET, HTTP_HEAD, HTTP_POST, HTTP_PUT, HTTP_PATCH, HTTP_DELETE, HTTP_OPTIONS };
                                   ^

I don't recall changing anything, except maybe updating some libraries. Any ideas what could be causing this? Here are my includes from the ESP8266 program:

#include <Arduino.h>

#include <ESP8266WiFi.h>
#include <ESP8266WiFiMulti.h>
#include <ESP8266HTTPClient.h>
#include <WiFiClient.h>

#include <DNSServer.h>            //Local DNS Server used for redirecting all requests to the configuration portal
#include <ESP8266WebServer.h>     //Local WebServer used to serve the configuration portal
#include <WiFiManager.h>          //https://github.com/tzapu/WiFiManager WiFi Configuration Magic

#define SERIAL_BUFFER_SIZE 256
0

You need a newer version of the WiFiManager.h library. This issue was fixed August last year.

| improve this answer | |
  • Strange. WiFiManager.h didn't show up in my 'Updateable' libraries but you're right. – garson Feb 17 at 16:46

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.