Do a little checking yourself before you send it to a shop, you'll save some heartache by knowing a little bit about the system and what could be wrong with it. The evap sensors aren't as frequent a problem on Rogues as on some other models.
First, look under the hood and see if the clutch is engaged. If it isn't, then you either have a blown clutch fuse, a bad clutch, or a bad A/C pressure sensor. Rogues have what are called "swash plate" compressors, which basically means the compressor runs all the time and never cycles. So if the clutch is disengaged, it means either the ECM sees low freon pressure or the clutch isn't working. The clutch fuse is in the IPDM, you need to take off the front intake duct to access it (one 6mm screw). If you don't have a streaming scanner to check the freon pressure, you can check it with a voltmeter. You should see around 1.0V on the data line (Pink) at the sensor with the compressor off. When they fail, they almost always flatline (0V). If you get something less than a volt, your refrigerant is probably low. If the clutch spins and there's enough freon, then start looking at the other sensors.
The intake and in-car sensors are both easy to check simply by jumping them out (I usually use a pair of regular sewing pins). If you jump one of them and all of a sudden the compressor spins, you found the culprit. If the system is Auto then it will have an in-car sensor, it will be by your right knee in the lower left dash. It's easy to identify, it has a small air duct running to it. The connector for the intake sensor will be nearby up the left side of the HVAC unit, awkward but not difficult to reach. It will have Orange/Black and Orange/White wires on an Auto system, Tan and Brown wires on a Manual. If you don't want to do this sort of checking yourself, give this info to your town sparky and it will help him make a correct diagnosis.