We are trying this example of GSP tracker: https://tinycircuits.com/blogs/learn/tinyduino-gps-tracker-data-logger-tutorial
We assembled everything and when we try to upload the code, we get the following error message (which I trimmed for space considerations)

Arduino: 1.8.5 (Mac OS X), Board: "Arduino/Genuino Uno"

Build options changed, rebuilding all
In file included from /Users/gadallon/Documents/Arduino/libraries/SPIMemory/src/SPIMemory.h:76:0,
                 from /Users/gadallon/Downloads/TinyCircuits-GPS-Tracker-Tutorial-master/GPS_Tracker/GPS_Tracker.ino:3:
/Users/gadallon/Documents/Arduino/libraries/SPIMemory/src/SPIFlash.h:33:7: error: redefinition of 'class SPIFlash'
class SPIFlash {
       ^
...

GPS_Tracker:75: error: 'class SPIFlash' has no member named 'readByteArray'
     flash.readByteArray(address, flashBuffer, 256);

exit status 1
'class SPIFlash' has no member named 'begin'

********

Anyone has any experience with it? is it possible that it's related to the changes in SPIFlash and SPImemory?

It may be possible that some include guards are missing! https://stackoverflow.com/questions/13060699/arduino-class-redefinition-error

Try adding something like this to the file producing the error:

#ifndef SPIFLASH_H
#define SPIFLASH_H

...

#endif