@Yveaux
Thanks for your reply.
The missing hash was a cut & paste error. Apparently there is a problem with my installation somewhere. What versions of the Arduino IDE, esp8266 library and MySensors libraries are you running?

I purchased what was described as a NodeMCU. It looks just like a photo of a LoLin V3 except that the name "LoLin" is not printed on the breakout board has an ESP-12N module mounted on it. When I first got it I compiled the GatewayESP8266 sketch including a relay node on the gateway. I installed the Vera MySensors plugin. In added a LED to stand-in for the relay. Everything went well and I was able to turn the LED on and off from the Vera GUI. Some time passed and the gateway no longer was working so I attempted to recompile the sketch without changes. It compiles without error. If I uncomment the line :#define MY_CONTROLLER_IP_ADDRESS 192, 168, 178, 68" I get errors. I have gone so far at to completely uninstall the Arduino IDE and all the Arduino files and directories belonging to me. Nothing helps. I cannot figure out what has changed. Any help will be greatly appreciated.

Here is the sketch:

/**
 * The MySensors Arduino library handles the wireless radio link and protocol
 * between your home built sensors/actuators and HA controller of choice.
 * The sensors forms a self healing radio network with optional repeaters. Each
 * repeater and gateway builds a routing tables in EEPROM which keeps track of the
 * network topology allowing messages to be routed to nodes.
 *
 * Created by Henrik Ekblad <henrik.ekblad@mysensors.org>
 * Copyright (C) 2013-2015 Sensnology AB
 * Full contributor list: https://github.com/mysensors/Arduino/graphs/contributors
 *
 * Documentation: http://www.mysensors.org
 * Support Forum: http://forum.mysensors.org
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * version 2 as published by the Free Software Foundation.
 *
 *******************************
 *
 * REVISION HISTORY
 * Version 1.0 - Henrik EKblad
 * Contribution by a-lurker and Anticimex, 
 * Contribution by Norbert Truchsess <norbert.truchsess@t-online.de>
 * Contribution by Ivo Pullens (ESP8266 support)
 * 
 * DESCRIPTION
 * The EthernetGateway sends data received from sensors to the WiFi link. 
 * The gateway also accepts input on ethernet interface, which is then sent out to the radio network.
 *
 * VERA CONFIGURATION:
 * Enter "ip-number:port" in the ip-field of the Arduino GW device. This will temporarily override any serial configuration for the Vera plugin. 
 * E.g. If you want to use the defualt values in this sketch enter: 192.168.178.66:5003
 *
 * LED purposes:
 * - To use the feature, uncomment WITH_LEDS_BLINKING in MyConfig.h
 * - RX (green) - blink fast on radio message recieved. In inclusion mode will blink fast only on presentation recieved
 * - TX (yellow) - blink fast on radio message transmitted. In inclusion mode will blink slowly
 * - ERR (red) - fast blink on error during transmission error or recieve crc error  
 * 
 * See http://www.mysensors.org/build/esp8266_gateway for wiring instructions.
 * nRF24L01+  ESP8266
 * VCC        VCC
 * CE         GPIO4          
 * CSN/CS     GPIO15
 * SCK        GPIO14
 * MISO       GPIO12
 * MOSI       GPIO13
 * GND        GND
 *            
 * Not all ESP8266 modules have all pins available on their external interface.
 * This code has been tested on an ESP-12 module.
 * The ESP8266 requires a certain pin configuration to download code, and another one to run code:
 * - Connect REST (reset) via 10K pullup resistor to VCC, and via switch to GND ('reset switch')
 * - Connect GPIO15 via 10K pulldown resistor to GND
 * - Connect CH_PD via 10K resistor to VCC
 * - Connect GPIO2 via 10K resistor to VCC
 * - Connect GPIO0 via 10K resistor to VCC, and via switch to GND ('bootload switch')
 * 
  * Inclusion mode button:
 * - Connect GPIO5 via switch to GND ('inclusion switch')
 * 
 * Hardware SHA204 signing is currently not supported!
 *
 * Make sure to fill in your ssid and WiFi password below for ssid & pass.
 */

#include <EEPROM.h>
#include <SPI.h>

// Enable debug prints to serial monitor
#define MY_DEBUG 

// Use a bit lower baudrate for serial prints on ESP8266 than default in MyConfig.h
#define MY_BAUD_RATE 9600

// Enables and select radio type (if attached)
#define MY_RADIO_NRF24
//#define MY_RADIO_RFM69

#define MY_GATEWAY_ESP8266

#define MY_ESP8266_SSID "MySSID"
#define MY_ESP8266_PASSWORD "MyVerySecretPassword"

// Enable UDP communication
//#define MY_USE_UDP

// Set the hostname for the WiFi Client. This is the hostname
// it will pass to the DHCP server if not static.
// #define MY_ESP8266_HOSTNAME "sensor-gateway"

// Enable MY_IP_ADDRESS here if you want a static ip address (no DHCP)
//#define MY_IP_ADDRESS 192,168,178,87

// If using static ip you need to define Gateway and Subnet address as well
#define MY_IP_GATEWAY_ADDRESS 192,168,178,1
#define MY_IP_SUBNET_ADDRESS 255,255,255,0

// The port to keep open on node server mode 
#define MY_PORT 5003      

// How many clients should be able to connect to this gateway (default 1)
#define MY_GATEWAY_MAX_CLIENTS 2

// Controller ip address. Enables client mode (default is "server" mode). 
// Also enable this if MY_USE_UDP is used and you want sensor data sent somewhere. 
define MY_CONTROLLER_IP_ADDRESS 192, 168, 178, 68

// Enable inclusion mode
#define MY_INCLUSION_MODE_FEATURE

// Enable Inclusion mode button on gateway
// #define MY_INCLUSION_BUTTON_FEATURE
// Set inclusion mode duration (in seconds)
#define MY_INCLUSION_MODE_DURATION 60 
// Digital pin used for inclusion mode button
#define MY_INCLUSION_MODE_BUTTON_PIN  3 

 
// Flash leds on rx/tx/err
// #define MY_LEDS_BLINKING_FEATURE
// Set blinking period
// #define MY_DEFAULT_LED_BLINK_PERIOD 300

// Led pins used if blinking feature is enabled above
#define MY_DEFAULT_ERR_LED_PIN 16  // Error led pin
#define MY_DEFAULT_RX_LED_PIN  16  // Receive led pin
#define MY_DEFAULT_TX_LED_PIN  16  // the PCB, on board LED

#if defined(MY_USE_UDP)
  #include <WiFiUDP.h>
#else
  #include <ESP8266WiFi.h>
#endif

#include <MySensors.h>

void setup() { 
}

void presentation() {
  // Present locally attached sensors here    
}


void loop() {
  // Send locally attached sensors data here
}

Here is the output from the compiler:

C:\Program Files (x86)\Arduino\arduino-builder -dump-prefs -logger=machine -hardware C:\Program Files (x86)\Arduino\hardware -hardware C:\Users\Fred\AppData\Local\Arduino15\packages -tools C:\Program Files (x86)\Arduino\tools-builder -tools C:\Program Files (x86)\Arduino\hardware\tools\avr -tools C:\Users\Fred\AppData\Local\Arduino15\packages -built-in-libraries C:\Program Files (x86)\Arduino\libraries -libraries D:\Users\Fred\Documents\Arduino\libraries -fqbn=esp8266:esp8266:nodemcuv2:CpuFrequency=80,UploadSpeed=115200,FlashSize=4M3M -ide-version=10804 -build-path C:\Users\Fred\AppData\Local\Temp\arduino_build_776913 -warnings=none -build-cache C:\Users\Fred\AppData\Local\Temp\arduino_cache_20910 -prefs=build.warn_data_percentage=75 -prefs=runtime.tools.esptool.path=C:\Users\Fred\AppData\Local\Arduino15\packages\esp8266\tools\esptool\0.4.9 -prefs=runtime.tools.xtensa-lx106-elf-gcc.path=C:\Users\Fred\AppData\Local\Arduino15\packages\esp8266\tools\xtensa-lx106-elf-gcc\1.20.0-26-gb404fb9-2 -prefs=runtime.tools.mkspiffs.path=C:\Users\Fred\AppData\Local\Arduino15\packages\esp8266\tools\mkspiffs\0.1.2 -verbose C:\Users\Fred\AppData\Local\Temp\arduino_modified_sketch_948243\GatewayESP8266.ino
C:\Program Files (x86)\Arduino\arduino-builder -compile -logger=machine -hardware C:\Program Files (x86)\Arduino\hardware -hardware C:\Users\Fred\AppData\Local\Arduino15\packages -tools C:\Program Files (x86)\Arduino\tools-builder -tools C:\Program Files (x86)\Arduino\hardware\tools\avr -tools C:\Users\Fred\AppData\Local\Arduino15\packages -built-in-libraries C:\Program Files (x86)\Arduino\libraries -libraries D:\Users\Fred\Documents\Arduino\libraries -fqbn=esp8266:esp8266:nodemcuv2:CpuFrequency=80,UploadSpeed=115200,FlashSize=4M3M -ide-version=10804 -build-path C:\Users\Fred\AppData\Local\Temp\arduino_build_776913 -warnings=none -build-cache C:\Users\Fred\AppData\Local\Temp\arduino_cache_20910 -prefs=build.warn_data_percentage=75 -prefs=runtime.tools.esptool.path=C:\Users\Fred\AppData\Local\Arduino15\packages\esp8266\tools\esptool\0.4.9 -prefs=runtime.tools.xtensa-lx106-elf-gcc.path=C:\Users\Fred\AppData\Local\Arduino15\packages\esp8266\tools\xtensa-lx106-elf-gcc\1.20.0-26-gb404fb9-2 -prefs=runtime.tools.mkspiffs.path=C:\Users\Fred\AppData\Local\Arduino15\packages\esp8266\tools\mkspiffs\0.1.2 -verbose C:\Users\Fred\AppData\Local\Temp\arduino_modified_sketch_948243\GatewayESP8266.ino
Using board 'nodemcuv2' from platform in folder: C:\Users\Fred\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.3.0
Using core 'esp8266' from platform in folder: C:\Users\Fred\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.3.0
Detecting libraries used...
"C:\Users\Fred\AppData\Local\Arduino15\packages\esp8266\tools\xtensa-lx106-elf-gcc\1.20.0-26-gb404fb9-2/bin/xtensa-lx106-elf-g++" -D__ets__ -DICACHE_FLASH -U__STRICT_ANSI__ "-IC:\Users\Fred\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.3.0/tools/sdk/include" "-IC:\Users\Fred\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.3.0/tools/sdk/lwip/include" "-IC:\Users\Fred\AppData\Local\Temp\arduino_build_776913/core" -c -w -Os -g -mlongcalls -mtext-section-literals -fno-exceptions -fno-rtti -falign-functions=4 -std=c++11  -ffunction-sections -fdata-sections -w -x c++ -E -CC -DF_CPU=80000000L -DLWIP_OPEN_SRC   -DARDUINO=10804 -DARDUINO_ESP8266_NODEMCU -DARDUINO_ARCH_ESP8266 -DARDUINO_BOARD="ESP8266_NODEMCU"  -DESP8266 "-IC:\Users\Fred\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.3.0\cores\esp8266" "-IC:\Users\Fred\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.3.0\variants\nodemcu" "C:\Users\Fred\AppData\Local\Temp\arduino_build_776913\sketch\GatewayESP8266.ino.cpp" -o "nul"
"C:\Users\Fred\AppData\Local\Arduino15\packages\esp8266\tools\xtensa-lx106-elf-gcc\1.20.0-26-gb404fb9-2/bin/xtensa-lx106-elf-g++" -D__ets__ -DICACHE_FLASH -U__STRICT_ANSI__ "-IC:\Users\Fred\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.3.0/tools/sdk/include" "-IC:\Users\Fred\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.3.0/tools/sdk/lwip/include" "-IC:\Users\Fred\AppData\Local\Temp\arduino_build_776913/core" -c -w -Os -g -mlongcalls -mtext-section-literals -fno-exceptions -fno-rtti -falign-functions=4 -std=c++11  -ffunction-sections -fdata-sections -w -x c++ -E -CC -DF_CPU=80000000L -DLWIP_OPEN_SRC   -DARDUINO=10804 -DARDUINO_ESP8266_NODEMCU -DARDUINO_ARCH_ESP8266 -DARDUINO_BOARD="ESP8266_NODEMCU"  -DESP8266 "-IC:\Users\Fred\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.3.0\cores\esp8266" "-IC:\Users\Fred\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.3.0\variants\nodemcu" "-IC:\Users\Fred\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.3.0\libraries\EEPROM" "C:\Users\Fred\AppData\Local\Temp\arduino_build_776913\sketch\GatewayESP8266.ino.cpp" -o "nul"
"C:\Users\Fred\AppData\Local\Arduino15\packages\esp8266\tools\xtensa-lx106-elf-gcc\1.20.0-26-gb404fb9-2/bin/xtensa-lx106-elf-g++" -D__ets__ -DICACHE_FLASH -U__STRICT_ANSI__ "-IC:\Users\Fred\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.3.0/tools/sdk/include" "-IC:\Users\Fred\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.3.0/tools/sdk/lwip/include" "-IC:\Users\Fred\AppData\Local\Temp\arduino_build_776913/core" -c -w -Os -g -mlongcalls -mtext-section-literals -fno-exceptions -fno-rtti -falign-functions=4 -std=c++11  -ffunction-sections -fdata-sections -w -x c++ -E -CC -DF_CPU=80000000L -DLWIP_OPEN_SRC   -DARDUINO=10804 -DARDUINO_ESP8266_NODEMCU -DARDUINO_ARCH_ESP8266 -DARDUINO_BOARD="ESP8266_NODEMCU"  -DESP8266 "-IC:\Users\Fred\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.3.0\cores\esp8266" "-IC:\Users\Fred\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.3.0\variants\nodemcu" "-IC:\Users\Fred\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.3.0\libraries\EEPROM" "-IC:\Users\Fred\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.3.0\libraries\SPI" "C:\Users\Fred\AppData\Local\Temp\arduino_build_776913\sketch\GatewayESP8266.ino.cpp" -o "nul"
"C:\Users\Fred\AppData\Local\Arduino15\packages\esp8266\tools\xtensa-lx106-elf-gcc\1.20.0-26-gb404fb9-2/bin/xtensa-lx106-elf-g++" -D__ets__ -DICACHE_FLASH -U__STRICT_ANSI__ "-IC:\Users\Fred\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.3.0/tools/sdk/include" "-IC:\Users\Fred\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.3.0/tools/sdk/lwip/include" "-IC:\Users\Fred\AppData\Local\Temp\arduino_build_776913/core" -c -w -Os -g -mlongcalls -mtext-section-literals -fno-exceptions -fno-rtti -falign-functions=4 -std=c++11  -ffunction-sections -fdata-sections -w -x c++ -E -CC -DF_CPU=80000000L -DLWIP_OPEN_SRC   -DARDUINO=10804 -DARDUINO_ESP8266_NODEMCU -DARDUINO_ARCH_ESP8266 -DARDUINO_BOARD="ESP8266_NODEMCU"  -DESP8266 "-IC:\Users\Fred\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.3.0\cores\esp8266" "-IC:\Users\Fred\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.3.0\variants\nodemcu" "-IC:\Users\Fred\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.3.0\libraries\EEPROM" "-IC:\Users\Fred\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.3.0\libraries\SPI" "-IC:\Users\Fred\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.3.0\libraries\ESP8266WiFi\src" "C:\Users\Fred\AppData\Local\Temp\arduino_build_776913\sketch\GatewayESP8266.ino.cpp" -o "nul"
"C:\Users\Fred\AppData\Local\Arduino15\packages\esp8266\tools\xtensa-lx106-elf-gcc\1.20.0-26-gb404fb9-2/bin/xtensa-lx106-elf-g++" -D__ets__ -DICACHE_FLASH -U__STRICT_ANSI__ "-IC:\Users\Fred\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.3.0/tools/sdk/include" "-IC:\Users\Fred\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.3.0/tools/sdk/lwip/include" "-IC:\Users\Fred\AppData\Local\Temp\arduino_build_776913/core" -c -w -Os -g -mlongcalls -mtext-section-literals -fno-exceptions -fno-rtti -falign-functions=4 -std=c++11  -ffunction-sections -fdata-sections -w -x c++ -E -CC -DF_CPU=80000000L -DLWIP_OPEN_SRC   -DARDUINO=10804 -DARDUINO_ESP8266_NODEMCU -DARDUINO_ARCH_ESP8266 -DARDUINO_BOARD="ESP8266_NODEMCU"  -DESP8266 "-IC:\Users\Fred\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.3.0\cores\esp8266" "-IC:\Users\Fred\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.3.0\variants\nodemcu" "-IC:\Users\Fred\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.3.0\libraries\EEPROM" "-IC:\Users\Fred\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.3.0\libraries\SPI" "-IC:\Users\Fred\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.3.0\libraries\ESP8266WiFi\src" "-ID:\Users\Fred\Documents\Arduino\libraries\MySensors" "C:\Users\Fred\AppData\Local\Temp\arduino_build_776913\sketch\GatewayESP8266.ino.cpp" -o "nul"
Using cached library dependencies for file: C:\Users\Fred\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.3.0\libraries\EEPROM\EEPROM.cpp
Using cached library dependencies for file: C:\Users\Fred\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.3.0\libraries\SPI\SPI.cpp
Using cached library dependencies for file: C:\Users\Fred\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.3.0\libraries\ESP8266WiFi\src\ESP8266WiFi.cpp
Using cached library dependencies for file: C:\Users\Fred\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.3.0\libraries\ESP8266WiFi\src\ESP8266WiFiAP.cpp
Using cached library dependencies for file: C:\Users\Fred\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.3.0\libraries\ESP8266WiFi\src\ESP8266WiFiGeneric.cpp
Using cached library dependencies for file: C:\Users\Fred\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.3.0\libraries\ESP8266WiFi\src\ESP8266WiFiMulti.cpp
Using cached library dependencies for file: C:\Users\Fred\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.3.0\libraries\ESP8266WiFi\src\ESP8266WiFiSTA.cpp
Using cached library dependencies for file: C:\Users\Fred\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.3.0\libraries\ESP8266WiFi\src\ESP8266WiFiScan.cpp
Using cached library dependencies for file: C:\Users\Fred\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.3.0\libraries\ESP8266WiFi\src\WiFiClient.cpp
Using cached library dependencies for file: C:\Users\Fred\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.3.0\libraries\ESP8266WiFi\src\WiFiClientSecure.cpp
Using cached library dependencies for file: C:\Users\Fred\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.3.0\libraries\ESP8266WiFi\src\WiFiServer.cpp
Using cached library dependencies for file: C:\Users\Fred\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.3.0\libraries\ESP8266WiFi\src\WiFiUdp.cpp
Generating function prototypes...
"C:\Users\Fred\AppData\Local\Arduino15\packages\esp8266\tools\xtensa-lx106-elf-gcc\1.20.0-26-gb404fb9-2/bin/xtensa-lx106-elf-g++" -D__ets__ -DICACHE_FLASH -U__STRICT_ANSI__ "-IC:\Users\Fred\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.3.0/tools/sdk/include" "-IC:\Users\Fred\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.3.0/tools/sdk/lwip/include" "-IC:\Users\Fred\AppData\Local\Temp\arduino_build_776913/core" -c -w -Os -g -mlongcalls -mtext-section-literals -fno-exceptions -fno-rtti -falign-functions=4 -std=c++11  -ffunction-sections -fdata-sections -w -x c++ -E -CC -DF_CPU=80000000L -DLWIP_OPEN_SRC   -DARDUINO=10804 -DARDUINO_ESP8266_NODEMCU -DARDUINO_ARCH_ESP8266 -DARDUINO_BOARD="ESP8266_NODEMCU"  -DESP8266 "-IC:\Users\Fred\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.3.0\cores\esp8266" "-IC:\Users\Fred\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.3.0\variants\nodemcu" "-IC:\Users\Fred\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.3.0\libraries\EEPROM" "-IC:\Users\Fred\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.3.0\libraries\SPI" "-IC:\Users\Fred\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.3.0\libraries\ESP8266WiFi\src" "-ID:\Users\Fred\Documents\Arduino\libraries\MySensors" "C:\Users\Fred\AppData\Local\Temp\arduino_build_776913\sketch\GatewayESP8266.ino.cpp" -o "C:\Users\Fred\AppData\Local\Temp\arduino_build_776913\preproc\ctags_target_for_gcc_minus_e.cpp"
"C:\Program Files (x86)\Arduino\tools-builder\ctags\5.8-arduino11/ctags" -u --language-force=c++ -f - --c++-kinds=svpf --fields=KSTtzns --line-directives "C:\Users\Fred\AppData\Local\Temp\arduino_build_776913\preproc\ctags_target_for_gcc_minus_e.cpp"
Compiling sketch...
"C:\Users\Fred\AppData\Local\Arduino15\packages\esp8266\tools\xtensa-lx106-elf-gcc\1.20.0-26-gb404fb9-2/bin/xtensa-lx106-elf-g++" -D__ets__ -DICACHE_FLASH -U__STRICT_ANSI__ "-IC:\Users\Fred\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.3.0/tools/sdk/include" "-IC:\Users\Fred\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.3.0/tools/sdk/lwip/include" "-IC:\Users\Fred\AppData\Local\Temp\arduino_build_776913/core" -c -w -Os -g -mlongcalls -mtext-section-literals -fno-exceptions -fno-rtti -falign-functions=4 -std=c++11 -MMD -ffunction-sections -fdata-sections -DF_CPU=80000000L -DLWIP_OPEN_SRC   -DARDUINO=10804 -DARDUINO_ESP8266_NODEMCU -DARDUINO_ARCH_ESP8266 -DARDUINO_BOARD="ESP8266_NODEMCU"  -DESP8266 "-IC:\Users\Fred\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.3.0\cores\esp8266" "-IC:\Users\Fred\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.3.0\variants\nodemcu" "-IC:\Users\Fred\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.3.0\libraries\EEPROM" "-IC:\Users\Fred\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.3.0\libraries\SPI" "-IC:\Users\Fred\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.3.0\libraries\ESP8266WiFi\src" "-ID:\Users\Fred\Documents\Arduino\libraries\MySensors" "C:\Users\Fred\AppData\Local\Temp\arduino_build_776913\sketch\GatewayESP8266.ino.cpp" -o "C:\Users\Fred\AppData\Local\Temp\arduino_build_776913\sketch\GatewayESP8266.ino.cpp.o"
In file included from C:\Users\Fred\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.3.0\libraries\ESP8266WiFi\src/ESP8266WiFi.h:39:0,

                 from C:\Users\Fred\AppData\Local\Temp\arduino_modified_sketch_948243\GatewayESP8266.ino:134:

C:\Users\Fred\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.3.0\libraries\ESP8266WiFi\src/WiFiClient.h: In instantiation of 'size_t WiFiClient::write(T&, size_t) [with T = char*; size_t = unsigned int]':

D:\Users\Fred\Documents\Arduino\libraries\MySensors/core/MyGatewayTransportEthernet.cpp:207:58:   required from here

C:\Users\Fred\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.3.0\libraries\ESP8266WiFi\src/WiFiClient.h:123:36: error: request for member 'available' in 'source', which is of non-class type 'char*'

     size_t left = source.available();

                                    ^

C:\Users\Fred\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.3.0\libraries\ESP8266WiFi\src/WiFiClient.h:127:5: error: request for member 'read' in 'source', which is of non-class type 'char*'

     source.read(buffer.get(), will_send);

     ^

Using library EEPROM at version 1.0 in folder: C:\Users\Fred\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.3.0\libraries\EEPROM 
Using library SPI at version 1.0 in folder: C:\Users\Fred\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.3.0\libraries\SPI 
Using library ESP8266WiFi at version 1.0 in folder: C:\Users\Fred\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.3.0\libraries\ESP8266WiFi 
Using library MySensors at version 2.1.1 in folder: D:\Users\Fred\Documents\Arduino\libraries\MySensors 
exit status 1
Error compiling for board NodeMCU 1.0 (ESP-12E Module).