'uint32_t' does not name a type

Hi all,

I am trying to port a library from Arduino to spark. I am expecting some problems, but now i have one that I didn’t expect at all. The library is the Cozir library for a CO2 sensor which is communication through the serial port (serial1 at spark)

below is some code from my ‘cozir.cpp’ file. I get several errors:

Cozir.cpp:58:5: error: ‘uint32_t’ does not name a type --> uint32_t CO2;

What am I doing wrong?

//    FILE: Cozir.h
//  AUTHOR: DirtGambit & Rob Tillaart
// VERSION: 0.1.05
// PURPOSE: library for COZIR range of sensors for Arduino
//          Polling Mode
//     URL: http://forum.arduino.cc/index.php?topic=91467.0
// Released to the public domain
// SPARK PORT by Prein

#ifndef Cozir_h
#define Cozir_h

#define COZIR_LIB_VERSION "0.1.05"

// See datasheet for details.
// These defines can be OR-ed for the SetOutputFields command
#define CZR_LIGHT 			0x2000
#define CZR_HUMIDITY		0x1000
#define CZR_FILTLED			0x0800
#define CZR_RAWLED			0x0400
#define CZR_MAXLED			0x0200
#define CZR_ZEROPOINT		0x0100
#define CZR_RAWTEMP			0x0080
#define CZR_FILTTEMP		0x0040
#define CZR_FILTLEDSIGNAL	0x0020
#define CZR_RAWLEDSIGNAL	0x0010
#define CZR_SENSTEMP		0x0008
#define CZR_FILTCO2			0x0004
#define CZR_RAWCO2			0x0002
#define CZR_NONE			0x0001

// easy default setting for streaming
// not in datasheet for debug only
#define CZR_ALL				0x3FFE

#define CZR_COMMAND			0x00
#define CZR_STREAMING		0x01
#define CZR_POLLING			0x02

class COZIR

    float Celsius();
    float Fahrenheit();
    float Humidity();
    float Light();
    uint32_t CO2;

    uint16_t FineTuneZeroPoint(uint16_t , uint16_t);
    uint16_t CalibrateFreshAir();
    uint16_t CalibrateNitrogen();
    uint16_t CalibrateKnownGas(uint16_t );
    uint16_t CalibrateManual(uint16_t );
    uint16_t SetSpanCalibrate(uint16_t );
    uint16_t GetSpanCalibrate();

    void SetDigiFilter(uint8_t );
    uint8_t GetDigiFilter();

    void SetOutputFields(uint16_t );
    void GetRecentFields();

    void SetEEPROM(uint8_t , uint8_t );
    uint8_t GetEEPROM(uint8_t );

    void GetVersionSerial();
    void GetConfiguration();

    Serial1 CZR_Serial;

    void SetOperatingMode(uint8_t mode);

    void Command(const char* );
    uint32_t Request(const char* );

    char buffer[20];

// -- END OF FILE --

You need to add a line of #include "application.h"

Yes, that worked. I included it in my ino file, but that wasn’t enough clearly.

Actually, if you are working on an .ino file you don’t usually need to include it, since the preprocessor would add it anyway, but in a .cpp you do have to (either directly or implicitly via another header file).
Since you can’t always know in what order your source files will be built, you should make sure that each module would build stand alone (be self sufficient).