Error in misregistration step of stripmapApp.py

[manudeo]

Hello,
I have recently started learning the ISCE2. I am using its GitHub open-source version and installed using conda and cmake.

I was following the notebook https://github.com/isce-framework/isce2-docs/blob/master/Notebooks/UNAVCO_2020/Stripmap/stripmapApp.ipynb

I was able to run the stripmapApp workflow till resampling (coarse_reasmple) and was able to generate files -

coarse_coreg.slc coarse_coreg.slc.vrt coarse_coreg.slc.xml

and an amplitude plot from coarse_coreg.slc

In the next step, i.e., misregistration, I am not getting any output files. The output after running this command !stripmapApp.py stripmapApp.xml --start=misregistration --end=misregistration are:

This is the Open Source version of ISCE.
Some of the workflows depend on a separate licensed package.
To obtain the licensed package, please make a request for ISCE
through the website: https://download.jpl.nasa.gov/ops/request/index.cfm.
Alternatively, if you are a member, or can become a member of WinSAR
you may be able to obtain access to a version of the licensed sofware at
https://winsar.unavco.org/software/isce
2022-01-13 13:33:38,988 - isce.insar - INFO - ISCE VERSION = 2.5.3, RELEASE_SVN_REVISION = ,RELEASE_DATE = 20210823, CURRENT_SVN_REVISION =
ISCE VERSION = 2.5.3, RELEASE_SVN_REVISION = ,RELEASE_DATE = 20210823, CURRENT_SVN_REVISION =
2022-01-13 13:33:38,989 - root - INFO - reference sensor not provided explicitly, using common sensor
2022-01-13 13:33:39,005 - root - INFO - secondary sensor not provided explicitly, using common sensor
do_unwrap True
Step processing
Running step misregistration
2022-01-13 13:33:39,093 - isce.insar.runRefineSecondaryTiming - INFO - Running refine secondary timing
GDAL open (R): coregisteredSlc/coarse_coreg.slc.vrt
GDAL open (R): 20110119_slc/20110119.slc.vrt
Scale Factor in Range: 1.0
Scale Factor in Azimuth: 1.0
Skip Sample Down: 687
Skip Sample Across: 121
Input Bands: 1 1
XXX start timer

What am I missing? Any help will be highly appreciated. Many thanks.

Best,
Manu

[manudeo]

I solved this problem. Instead of running in the Notebook, I ran ISCE2 in the terminal, this time, I got an extra error - Segmentation Fault (Core dumped).
The issue was with the GCC version. I was using the latest versions (conda install gcc_linux-64 gxx_linux-64 gfortran_linux-64). I reinstalled ISCE2 with conda install gcc_linux-64=7.3.0 gxx_linux-64=7.3.0 gfortran_linux-64=7.3.0 and this time, everything worked well.