Conflicting libraries?

So my code currently looks like this, as I took the sample code from Adafruit and made minor modifications.

I’m currently trying to get it to work with the Arduino GSM shield, but it doesn’t seem to be letting me import both the Adafruit and the GSM libraries.

// This is a motion-detect camera sketch using the Adafruit VC0706 library.
// On start, the Arduino will find the camera and SD card and turn
// on motion detection.  If motion is detected, the camera will
// snap a photo, saving it to the SD card.
// Public domain.

// If using an Arduino Mega (1280, 2560 or ADK) in conjunction
// with an SD card shield designed for conventional Arduinos
// (Uno, etc.), it's necessary to edit the library file:
//   libraries/SD/utility/Sd2Card.h
// Look for this line:
//   #define MEGA_SOFT_SPI 0
// change to:
//   #define MEGA_SOFT_SPI 1
// This is NOT required if using an SD card breakout interfaced
// directly to the SPI bus of the Mega (pins 50-53), or if using
// a non-Mega, Uno-style board.

#include <Adafruit_VC0706.h>
#include <SD.h>
#include <GSM.h>

// comment out this line if using Arduino V23 or earlier
#include <SoftwareSerial.h>         

// uncomment this line if using Arduino V23 or earlier
// #include <NewSoftSerial.h>       

// SD card chip select line varies among boards/shields:
// Adafruit SD shields and modules: pin 10
// Arduino Ethernet shield: pin 4
// Sparkfun SD shield: pin 8
// Arduino Mega w/hardware SPI: pin 53
// Teensy 2.0: pin 0
// Teensy++ 2.0: pin 20
#define chipSelect 10

// Pins for camera connection are configurable.
// With the Arduino Uno, etc., most pins can be used, except for
// those already in use for the SD card (10 through 13 plus
// chipSelect, if other than pin 10).
// With the Arduino Mega, the choices are a bit more involved:
// 1) You can still use SoftwareSerial and connect the camera to
//    a variety of pins...BUT the selection is limited.  The TX
//    pin from the camera (RX on the Arduino, and the first
//    argument to SoftwareSerial()) MUST be one of: 62, 63, 64,
//    65, 66, 67, 68, or 69.  If MEGA_SOFT_SPI is set (and using
//    a conventional Arduino SD shield), pins 50, 51, 52 and 53
//    are also available.  The RX pin from the camera (TX on
//    Arduino, second argument to SoftwareSerial()) can be any
//    pin, again excepting those used by the SD card.
// 2) You can use any of the additional three hardware UARTs on
//    the Mega board (labeled as RX1/TX1, RX2/TX2, RX3,TX3),
//    but must specifically use the two pins defined by that
//    UART; they are not configurable.  In this case, pass the
//    desired Serial object (rather than a SoftwareSerial
//    object) to the Adafruit_VC0706 constructor.

// Using SoftwareSerial (Arduino 1.0+) or NewSoftSerial (Arduino 0023 & prior):
#if ARDUINO >= 100
// On Uno: camera TX connected to pin 2, camera RX to pin 3:
SoftwareSerial cameraconnection = SoftwareSerial(4, 5);
// On Mega: camera TX connected to pin 69 (A15), camera RX to pin 3:
//SoftwareSerial cameraconnection = SoftwareSerial(69, 3);
NewSoftSerial cameraconnection = NewSoftSerial(4, 5);
Adafruit_VC0706 cam = Adafruit_VC0706(&cameraconnection);

// Using hardware serial on Mega: camera TX conn. to RX1,
// camera RX to TX1, no SoftwareSerial object is required:
//Adafruit_VC0706 cam = Adafruit_VC0706(&Serial1);

void setup() {
/******************** CAMERA INITIALIZE *****************************/

  // When using hardware SPI, the SS pin MUST be set to an
  // output (even if not connected or used).  If left as a
  // floating input w/SPI on, this can cause lockuppage.
#if !defined(SOFTWARE_SPI)
#if defined(__AVR_ATmega1280__) || defined(__AVR_ATmega2560__)
  if(chipSelect != 53) pinMode(53, OUTPUT); // SS on Mega
  if(chipSelect != 10) pinMode(10, OUTPUT); // SS on Uno, etc.

  Serial.println("SMS Trigger");

  // see if the card is present and can be initialized:
  if (!SD.begin(chipSelect)) {
    Serial.println("Card failed, or not present");
    // don't do anything more:

  // Try to locate the camera
  if (cam.begin()) {
    Serial.println("Camera Found:");
  else {
    Serial.println("No camera found?");
  // Print out the camera version information (optional)
  char *reply = cam.getVersion();
  if (reply == 0) {
    Serial.print("Failed to get version");
  else {

  // Set the picture size - you can choose one of 640x480, 320x240 or 160x120 
  // Remember that bigger pictures take longer to transmit!

  //cam.setImageSize(VC0706_640x480);        // biggest
  cam.setImageSize(VC0706_320x240);        // medium
  //cam.setImageSize(VC0706_160x120);          // small

  // You can read the size back from the camera (optional, but maybe useful?)
  uint8_t imgsize = cam.getImageSize();
  Serial.print("Image size: ");
  if (imgsize == VC0706_640x480) Serial.println("640x480");
  if (imgsize == VC0706_320x240) Serial.println("320x240");
  if (imgsize == VC0706_160x120) Serial.println("160x120");

/****************************************CAMERA SETUP*******************************************/


void loop() {
  Serial.println("Taking picture in 3 seconds...");


void longSnap(){
  if (!cam.takePicture()) {
    Serial.println("Failed to snap!");
    Serial.println("Picture taken!");

  char filename[13];
  strcpy(filename, "IMAGE00.JPG");
  for (int i = 0; i < 100; i++) {
    filename[5] = '0' + i/10;
    filename[6] = '0' + i%10;
    // create if does not exist, do not open existing, write, sync after write
    if (! SD.exists(filename)) {

  File imgFile =, FILE_WRITE);

  uint16_t jpglen = cam.frameLength();
  Serial.print(jpglen, DEC);
  Serial.println(" byte image");

  Serial.print("Writing image to "); 

  while (jpglen > 0) {
    // read 32 bytes at a time;
    uint8_t *buffer;
    uint8_t bytesToRead = min(32, jpglen); // change 32 to 64 for a speedup but may not work with all setups!
    buffer = cam.readPicture(bytesToRead);
    imgFile.write(buffer, bytesToRead);

    //Serial.print("Read ");  Serial.print(bytesToRead, DEC); Serial.println(" bytes");

    jpglen -= bytesToRead;



And it gives me these error messages:

C:\Program Files (x86)\Arduino\hardware\tools\avr\bin\avr-ar: unable to rename ‘core.a’; reason: File exists
SoftwareSerial\SoftwareSerial.cpp.o: In function __vector_3': C:\Program Files (x86)\Arduino\libraries\SoftwareSerial/SoftwareSerial.cpp:305: multiple definition of __vector_3’
GSM\GSM3SoftSerial.cpp.o:C:\Program Files (x86)\Arduino\libraries\GSM/GSM3SoftSerial.cpp:511: first defined here
SoftwareSerial\SoftwareSerial.cpp.o: In function __vector_4': C:\Program Files (x86)\Arduino\libraries\SoftwareSerial/SoftwareSerial.cpp:312: multiple definition of __vector_4’
GSM\GSM3SoftSerial.cpp.o:C:\Program Files (x86)\Arduino\libraries\GSM/GSM3SoftSerial.cpp:518: first defined here
SoftwareSerial\SoftwareSerial.cpp.o: In function __vector_5': C:\Program Files (x86)\Arduino\libraries\SoftwareSerial/SoftwareSerial.cpp:319: multiple definition of __vector_5’
GSM\GSM3SoftSerial.cpp.o:C:\Program Files (x86)\Arduino\libraries\GSM/GSM3SoftSerial.cpp:525: first defined here

I’m not sure what they mean or how I can fix it, but I do know that the program runs perfectly fine until I add the line

#include <GSM.h>”

but I need to have that library as well. I feel like there’s something conflicting, but I’m not sure what and I don’t know how to fix it.

Thanks again in advance.

Which arduino IDE version are you using and where did you get your GSM library? I checked my records. GSM has been included in arduino IDE since 1.0.4 so there could be some conflict if you use an earlier version of arduino and add the GSM library to it.

I see that you are using the same camera I am using. Are you using software serial or hardware serial with that camera? Which arduino board are you using?

I am using 1.0.5, so it was included. I’m using the Uno, and I think SoftwareSerial, and I got the library for it from adafruit.

SoftwareSerial and GSMSoftSerial do conflict because they use the same pin interrupts. I would try using the AltSoftSerial library instead of SoftwareSerial because it doesn't seem to use pin interrupts, or at least not the same ones as GSMSoftSerial. You can only use AltSoftSerial with a certain pair of pins. Download and documentation can be found here: AltSoftSerial Library, for an extra serial port

can we SPI codes for mega 1280 ?