Problem with compiling a programm for an Attiny84A-Pu

I’m having some problems with flashing my ATtiny84A-Pu.
I’m using the Arduino as a Programmer (Arduino as ISP).
This is the code I want to upload to the Tiny:

#include <SPI85.h>
#include <Mirf.h>
#include <MirfHardwareSpi85Driver.h>
#include <nRF24L01.h>
#include <OneWire.h>
#include <DallasTemperature.h>

// This USI was defined in SPI85.cpp
// Not to be confused with SPI (MOSI/MISO) used by ICSP pins
// Refer to page 61 of attiny84 datahseet
// USI pins could be redefined here
//#define USI-DO  5
//#define USI-DI  4
//#define USCK   6

#define ONE_WIRE_BUS 9
#define CE    7
#define CSN   3

OneWire oneWire(ONE_WIRE_BUS);
DallasTemperature sensors2(&oneWire);

void setup() {

  // Start the temperaturesensor

  /*   * Set the SPI Driver.   */

  Mirf.spi = &MirfHardwareSpi85;

  /*   * Setup pins / SPI.   */

  Mirf.cePin = CE;
  Mirf.csnPin = CSN;

  /*   * Configure reciving address.   */

  Mirf.setRADDR((byte *)"serv1");

  /*   * Set the payload length to sizeof(unsigned long) the   * return type of millis().   *   * NB: payload on client and server must be the same.   */

  Mirf.payload = sizeof(unsigned long);

  /*   * Write channel and payload config then power up reciver.   */



void loop() {

  float tempout = sensors2.getTempCByIndex(0);

    /*     * Set the send address.     */

    Mirf.setTADDR((byte *)"clie1");

    /*     * Send the data back to the client.     */

    Mirf.send((byte *) &tempout);

    /*     * Wait untill sending has finished     *     * NB: isSending returns the chip to receving after returning true.     */
    delay (10000);


And that’s the ERROR-Message I get:

In file included from C:\Users\Alexia\Documents\Arduino\libraries\Mirf\MirfSpiDriver.cpp:1:0:

C:\Users\Alexia\Documents\Arduino\libraries\Mirf\MirfSpiDriver.h:6:11: error: 'uint8_t' does not name a type

   virtual uint8_t transfer(uint8_t data);


C:\Users\Alexia\Documents\Arduino\libraries\Mirf\MirfSpiDriver.cpp:3:1: error: 'uint8_t' does not name a type

 uint8_t MirfSpiDriver::transfer(uint8_t data){


exit status 1
Error compiling for board ATtiny24/44/84.

I don’t understand what that ERROR-Message is trying to tell me.
Can anyone tell me what i need to change in the programm or in the Installation stuff?
Thank you

I don't know the answer but it is not a "Problem with flashing an Attiny84A-Pu" - it is a problem with compiling. I suspect you will get the same error if you just try to verify the program rather than to upload it.