Error While Compiling (Please help)

Hi all,

I get an error while compiling my code. Can anyone please advise on this?

Arduino: 1.6.12 (Windows 7), Board: "Arduino/Genuino Uno"

In file included from C:UsersptpxutanAppDataLocalTempuntitled1835968125.tmpsketch_dec12asketch_dec12a.ino:1:0:

C:Program FilesArduinolibrariesKeyboardsrc/Keyboard.h:29:2: warning: #warning "Using legacy HID core (non pluggable)" [-Wcpp]

#warning "Using legacy HID core (non pluggable)"


In file included from C:UsersptpxutanAppDataLocalTempuntitled1835968125.tmpsketch_dec12asketch_dec12a.ino:2:0:

C:UsersptpxutanDocumentsArduinolibrariesCytronWiFiShield-mastersrc/CytronWiFiShield.h:71:1: warning: 'typedef' was ignored in this declaration



In file included from C:UsersptpxutanDocumentsArduinolibrariesCytronWiFiShield-mastersrc/CytronWiFiServer.h:26:0,

                from C:UsersptpxutanAppDataLocalTempuntitled1835968125.tmpsketch_dec12asketch_dec12a.ino:3:

C:UsersptpxutanDocumentsArduinolibrariesCytronWiFiShield-mastersrc/CytronWiFiClient.h: In instantiation of 'size_t ESP8266Client::write(T&) [with T = char; size_t = unsigned int]':

C:UsersptpxutanDocumentsArduinolibrariesCytronWiFiShield-mastersrc/CytronWiFiServer.h:59:34:   required from 'size_t ESP8266Server::write(T&) [with T = char; size_t = unsigned int]'

C:UsersptpxutanAppDataLocalTempuntitled1835968125.tmpsketch_dec12asketch_dec12a.ino:66:28:   required from here

C:UsersptpxutanDocumentsArduinolibrariesCytronWiFiShield-mastersrc/CytronWiFiClient.h:76:25: error: request for member 'available' in 'src', which is of non-class type 'char'

 while (src.available() > 2048)


C:UsersptpxutanDocumentsArduinolibrariesCytronWiFiShield-mastersrc/CytronWiFiClient.h:94:13: error: request for member 'read' in 'src', which is of non-class type 'char'

    doneLen += send(;


C:UsersptpxutanDocumentsArduinolibrariesCytronWiFiShield-mastersrc/CytronWiFiClient.h:102:35: error: request for member 'available' in 'src', which is of non-class type 'char'

 uint16_t leftLen = src.available();


C:UsersptpxutanDocumentsArduinolibrariesCytronWiFiShield-mastersrc/CytronWiFiClient.h:111:12: error: request for member 'read' in 'src', which is of non-class type 'char'

   doneLen += send(;


exit status 1
Error compiling for board Arduino/Genuino Uno.

This report would have more information with
"Show verbose output during compilation"
option enabled in File -> Preferences.

Why are you trying to use Keyboard.h on a Uno. IT WILL NOT WORK!

Posting the error messages without the code it next to useless.