Unwrap question

Does unwrap step must do always then displacement will be calculated?

Please take a look at this

Snaphu works fine. I’d mean basicaly?

Yes, Indeed the Unwrapping step most be done


I’m a beginner in InSAR. I’m using the SNAP 5.0 to build a DEM. With the
tutorial “Interferometry tutorial with RADARSAT-2”

For the phase unwrapping using the SNAPHU algorithm, I’d using DEM-Generation-Pre-Proceisng-Snaphu.xml.
But, I’have a problem of connection. I have this error message:

The system can not find the path specified?

Can you guide me?

Thank you