KeyError: 'range_resolution' in prep_aria.py

[ReemAlshammari]

Description of the problem
I got error with step - correct_topography, when reading "incidenceAngle".
I think "incidenceAngle" is empty, the geometryGeo.h5 created by using "prep_aria.py".

Full script that generated the error

smallbaselineApp.py 

Full error message

open geometry file: geometryGeo.h5
read 2D incidenceAngle,slantRangeDistance from geometry file: geometryGeo.h5
read mean bperp from timeseries file
/mintpy/dem_error.py:259: RuntimeWarning: invalid value encountered in sin
inps.sinIncAngle = np.sin(inps.incAngle * np.pi / 180.)```


**System information**

* Operating system: macOS
* Python environment: conda
* Version of MintPy: MintPy release version v1.2, release date 2020-01-03

[welcome]

👋 Thanks for opening your first issue here! Please make sure you filled out the template with as much detail as possible. We appreciate that you took the time to contribute!
Make sure you read our contributing guidelines

[yunjunz]

You can run view.py inputs/geometryGeo.h5 incidenceAngle to see how it looks like.

My guess is this is a bug/warning related with no-data, and it has been fixed before. You should try it with the latest version.

[ReemAlshammari]

You're right I'm using old version but this is because when I RUN the latest version (MintPy release version v1.2.3, release date 2020-07-14), I got error when running ""prep_aria.py"" .
The error is :
""
extract metadata from /stack/unwrapStack.vrt
Traceback (most recent call last):
File "/MintPy/mintpy/prep_aria.py", line 504, in
main()
File "/MintPy/mintpy/prep_aria.py", line 442, in main
metadata = extract_metadata(inps.unwFile)
File "/MintPy/mintpy/prep_aria.py", line 261, in extract_metadata
rgfact = sen_dict['IW2']['range_resolution'] / sen_dict['range_pixel_size']
KeyError: 'range_resolution' ""

how to solve it ?
Thank you.

[yunjunz]

Hi @ReemAlshammari, the KeyError above is a bug introduced in the recent commit 46f3d8b, after the v1.2.3 release. Thank you for identifying this! It should be fixed now. Please update your mintpy code and try again.