CreateStack working in SNAP but not with gpt

Hi all,

I have a behaviour that I can not explain. I am using SNAP 7.0 and in the GUI the below graph is working but when I run it with gpt I get the below error:

gpt myGraph.xml
INFO: org.esa.snap.core.gpf.operators.tooladapter.ToolAdapterIO: Initializing external tool adapters
INFO: org.esa.snap.core.util.EngineVersionCheckActivator: Please check regularly for new updates for the best SNAP experience.
Executing processing graph
INFO: org.hsqldb.persist.Logger: dataFileCache open start
first_line_time metadata value is null
last_line_time metadata value is null
first_line_time metadata value is null
last_line_time metadata value is null
WARNING: org.esa.s1tbx.insar.gpf.coregistration.CreateStackOp: Unable to calculate baselines. Ellipsoid.ell2xyz : input values for phi/lambda have to be in radians!

Any idea what could be wrong ? Can you explain to me what that error means ?

Thanks !

The graph:

1.0

BandMaths






NDVI
float32
(band_1_mst_01Jan2000 - band_1_slv1_01Jan2000)/(band_1_mst_01Jan2000 + band_1_slv1_01Jan2000)


0.0






CreateStack

<sourceProduct.2 refid=“ProductSet-Reader”/>




NONE
Master
Product Geolocation



Write




SENTINEL2A_20190406-105711-276_L2A_T31UER_C_V1-0_FRE_B4_Stack_BandMath2.tif
GeoTIFF



ProductSet-Reader


.\SENTINEL2A_20190406-105711-276_L2A_T31UER_C_V1-0_FRE_B4.tif,.\SENTINEL2A_20190406-105711-276_L2A_T31UER_C_V1-0_FRE_B8.tif