{v}


In file included from C:\Users\MarkAndKaren\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.7.4/tools/sdk/libc/xtensa-lx106-elf/include/sys/stdio.h:6:0,
                 from C:\Users\MarkAndKaren\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.7.4/tools/sdk/libc/xtensa-lx106-elf/include/stdio.h:63,
                 from C:\Users\MarkAndKaren\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.7.4\cores\esp8266/Arduino.h:32,
                 from sketch\NixieClock.ino.cpp:1:
C:\Users\MarkAndKaren\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.7.4/tools/sdk/libc/xtensa-lx106-elf/include/sys/pgmspace.h:25:130: error: 'const char HTTP_HEAD []' redeclared as different kind of symbol
   #define PROGMEM __attribute__((section( "\".irom.text." __FILE__ "." __STRINGIZE(__LINE__) "."  __STRINGIZE(__COUNTER__) "\"")))
                                                                                                                                  ^
C:\Users\MarkAndKaren\Documents\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 E:\Documents\ESP8266\NixieClock\NixieClock.ino:26:0:
C:\Users\MarkAndKaren\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.7.4\libraries\ESP8266WebServer\src/ESP8266WebServer.h:34:39: 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 };
                                       ^
Multiple libraries were found for "WiFiUdp.h"
 Used: C:\Users\MarkAndKaren\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.7.4\libraries\ESP8266WiFi
 Not used: C:\Program Files (x86)\Arduino\libraries\WiFi
exit status 1
Error compiling for board Generic ESP8266 Module.