Problem Description

I'm currently using smallbaselineApp.py and would like to apply unwrapping error correction on files generated by Gamma. However, when I enable mintpy.unwrapError.method = phase_closure, the script fails to recognize .unw.conncomp files and throws an error.

File Structure

interferograms/data1-data2/diff_filt_20191219-20191231_4rlks.unw.conncomp

Configuration File Setting

mintpy.load.connCompFile = ../interferograms//diff_filt_.unw.conncomp

Error Message

prep_gamma.py "../interferograms//diff_filt_.unw.conncomp" --dem "../geometry/sim_*_4rlks.rdc.dem"
ValueError: unsupported input file extension: .conncomp
supported file extensions: ['.unw', '.cor', '.int', '.dem', '.hgt_sim', '*to_rdc', '*2_rdc', '*2rdc']

I have attached my code link (https://drive.google.com/file/d/1UUiWBl16fhTycebESQwKJEhEB2W_u8j2/view?usp=drive_link), which is executed using MintPy version 1.6 by running smallbaselineApp.py PBL.txt under the PBL/mintpy/ directory. Could you please help me identify the issue and provide guidance on how to correctly load and use the .conncomp files for unwrapping error correction with Gamma data?

Thank you in advance for your time and assistance!