Error en las capas raster de Saga-GIS Mosaic: el objeto 'NoneType' no tiene el atributo 'crs'

Question

Tratando de fusionar múltiples capas raster (TIFF's) con la misma extensión con las capas raster de Saga-GIS Mosaic. La única razón por la que estoy usando esta cosa Mosiac es porque me permite fusionar múltiples capas (cientos de ellas) y retener sólo el valor mínimo. Pero termino con este error:

'NoneType' object has no attribute 'crs'

¿Qué estoy haciendo mal?

Log, Mosaic-options y raster metadata abajo.

Mosaico-opciones:

Metadatos TIFF:

Driver
GDAL provider
GTiff
GeoTIFF
Dataset Description
/Users/Jonas/not_cum_test_0_Invisibility.tiff
AREA_OR_POINT=Area
Band 1
STATISTICS_MAXIMUM=0
STATISTICS_MEAN=-34.217218834805
STATISTICS_MINIMUM=-133.25929260254
STATISTICS_STDDEV=29.597849327319
Dimensions
X: 695 Y: 712 Bands: 1
Origin
671356,6.58518e+06
Pixel Size
2.00012,-2.00053
No Data Value
nan 
Data Type
Float32 - Thirty two bit floating point 
Pyramid overviews
Layer Spatial Reference System
+proj=utm +zone=33 +ellps=GRS80 +towgs84=0,0,0,0,0,0,0 +units=m +no_defs
Layer Extent (layer original source projection)
671356.3201076468685642,6583758.8905753996223211 : 672746.4011552316369489,6585183.2697039842605591
Band
Band 1
Band No
1
Min Val
-133.2592926025
Max Val
0.0000000000
Range
133.2592926025
Mean
-34.2172188348
Sum of squares
433496013.7477690578
Standard Deviation
29.5978792338
Sum of all cells
-16932048.5682150051
Cell Count
494840 

Registro de errores de Saga-GIS:

Algorithm Mosaic raster layers starting...
    io_gdal 0 -TRANSFORM 1 -INTERPOL 0 -GRIDS "/var/folders/0x/bvgzg4c56nq94kfk_j2zzxkw0000gn/T/processing43e4ecf7b3a942ebbaea0a0f1d203ea3/c4cf34846dd944cfa14836c72f295c17/notcumtest3Invisibility.sgrd" -FILES "/Users/Jonas/not_cum_test_3_Invisibility.tiff"
    io_gdal 0 -TRANSFORM 1 -INTERPOL 0 -GRIDS "/var/folders/0x/bvgzg4c56nq94kfk_j2zzxkw0000gn/T/processing43e4ecf7b3a942ebbaea0a0f1d203ea3/4fa2106d203044cbb7e2d6df7386a625/notcumtest2Invisibility.sgrd" -FILES "/Users/Jonas/not_cum_test_2_Invisibility.tiff"
    io_gdal 0 -TRANSFORM 1 -INTERPOL 0 -GRIDS "/var/folders/0x/bvgzg4c56nq94kfk_j2zzxkw0000gn/T/processing43e4ecf7b3a942ebbaea0a0f1d203ea3/608f4aaa09594965a9c919ef809143bf/notcumtest1Invisibility.sgrd" -FILES "/Users/Jonas/not_cum_test_1_Invisibility.tiff"
    io_gdal 0 -TRANSFORM 1 -INTERPOL 0 -GRIDS "/var/folders/0x/bvgzg4c56nq94kfk_j2zzxkw0000gn/T/processing43e4ecf7b3a942ebbaea0a0f1d203ea3/0ddef947d1b44e30ab1c8b806ed45a82/notcumtest0Invisibility.sgrd" -FILES "/Users/Jonas/not_cum_test_0_Invisibility.tiff"
    grid_tools "Mosaicking" -TARGET_DEFINITION 0 -GRIDS "/var/folders/0x/bvgzg4c56nq94kfk_j2zzxkw0000gn/T/processing43e4ecf7b3a942ebbaea0a0f1d203ea3/c4cf34846dd944cfa14836c72f295c17/notcumtest3Invisibility.sgrd;/var/folders/0x/bvgzg4c56nq94kfk_j2zzxkw0000gn/T/processing43e4ecf7b3a942ebbaea0a0f1d203ea3/4fa2106d203044cbb7e2d6df7386a625/notcumtest2Invisibility.sgrd;/var/folders/0x/bvgzg4c56nq94kfk_j2zzxkw0000gn/T/processing43e4ecf7b3a942ebbaea0a0f1d203ea3/608f4aaa09594965a9c919ef809143bf/notcumtest1Invisibility.sgrd;/var/folders/0x/bvgzg4c56nq94kfk_j2zzxkw0000gn/T/processing43e4ecf7b3a942ebbaea0a0f1d203ea3/0ddef947d1b44e30ab1c8b806ed45a82/notcumtest0Invisibility.sgrd" -NAME "Mosaic" -TYPE 7 -INTERPOL 0 -OVERLAP 2 -BLEND_DIST 10 -MATCH 0 -TARGET_USER_XMIN 671356.320108 -TARGET_USER_XMAX 672746.401155 -TARGET_USER_YMIN 6583758.89058 -TARGET_USER_YMAX 6585183.2697 -TARGET_USER_SIZE 100 -TARGET_USER_FITS 0 -TARGET_OUT_GRID "/var/folders/0x/bvgzg4c56nq94kfk_j2zzxkw0000gn/T/processing43e4ecf7b3a942ebbaea0a0f1d203ea3/990cd25158734cbba3f7e43a0cd73813/TARGETOUTGRID.sdat"
    /Users/Jonas/.qgis2//processing/saga_batch_job.sh: line 3: 91765 Segmentation fault: 11 saga_cmd io_gdal 0 -TRANSFORM 1 -INTERPOL 0 -GRIDS "/var/folders/0x/bvgzg4c56nq94kfk_j2zzxkw0000gn/T/processing43e4ecf7b3a942ebbaea0a0f1d203ea3/c4cf34846dd944cfa14836c72f295c17/notcumtest3Invisibility.sgrd" -FILES "/Users/Jonas/not_cum_test_3_Invisibility.tiff"
    /Users/Jonas/.qgis2//processing/saga_batch_job.sh: line 4: 91767 Segmentation fault: 11 saga_cmd io_gdal 0 -TRANSFORM 1 -INTERPOL 0 -GRIDS "/var/folders/0x/bvgzg4c56nq94kfk_j2zzxkw0000gn/T/processing43e4ecf7b3a942ebbaea0a0f1d203ea3/4fa2106d203044cbb7e2d6df7386a625/notcumtest2Invisibility.sgrd" -FILES "/Users/Jonas/not_cum_test_2_Invisibility.tiff"
    /Users/Jonas/.qgis2//processing/saga_batch_job.sh: line 5: 91768 Segmentation fault: 11 saga_cmd io_gdal 0 -TRANSFORM 1 -INTERPOL 0 -GRIDS "/var/folders/0x/bvgzg4c56nq94kfk_j2zzxkw0000gn/T/processing43e4ecf7b3a942ebbaea0a0f1d203ea3/608f4aaa09594965a9c919ef809143bf/notcumtest1Invisibility.sgrd" -FILES "/Users/Jonas/not_cum_test_1_Invisibility.tiff"
    /Users/Jonas/.qgis2//processing/saga_batch_job.sh: line 6: 91769 Segmentation fault: 11 saga_cmd io_gdal 0 -TRANSFORM 1 -INTERPOL 0 -GRIDS "/var/folders/0x/bvgzg4c56nq94kfk_j2zzxkw0000gn/T/processing43e4ecf7b3a942ebbaea0a0f1d203ea3/0ddef947d1b44e30ab1c8b806ed45a82/notcumtest0Invisibility.sgrd" -FILES "/Users/Jonas/not_cum_test_0_Invisibility.tiff"
    Error: executing tool [Mosaicking]
    ____________________________

    ##### ## ##### ##
    ### ### ## ###
    ### # ## ## #### # ##
    ### ##### ## # #####
    ##### # ## ##### # ##
    ____________________________

    SAGA Version: 2.2.3

    ____________________________
    library path: /Applications/QGIS.app/Contents/MacOS/lib/saga/
    library name: libgrid_tools
    library : Tools
    tool : Mosaicking
    author : O.Conrad (c) 2003-12
    ____________________________

    Load grid: /var/folders/0x/bvgzg4c56nq94kfk_j2zzxkw0000gn/T/processing43e4ecf7b3a942ebbaea0a0f1d203ea3/c4cf34846dd944cfa14836c72f295c17/notcumtest3Invisibility.sgrd...
    failed
    Load grid: /var/folders/0x/bvgzg4c56nq94kfk_j2zzxkw0000gn/T/processing43e4ecf7b3a942ebbaea0a0f1d203ea3/4fa2106d203044cbb7e2d6df7386a625/notcumtest2Invisibility.sgrd...
    failed
    Load grid: /var/folders/0x/bvgzg4c56nq94kfk_j2zzxkw0000gn/T/processing43e4ecf7b3a942ebbaea0a0f1d203ea3/608f4aaa09594965a9c919ef809143bf/notcumtest1Invisibility.sgrd...
    failed
    Load grid: /var/folders/0x/bvgzg4c56nq94kfk_j2zzxkw0000gn/T/processing43e4ecf7b3a942ebbaea0a0f1d203ea3/0ddef947d1b44e30ab1c8b806ed45a82/notcumtest0Invisibility.sgrd...
    failed
    Mosaicking: could not initialize data objects
    Converting outputs

    'NoneType' object has no attribute 'crs' See log for more details

QGIS sobre:

QGIS version
2.14.8-Essen
QGIS code branch
Release 2.14
Compiled against Qt
4.8.6
Running against Qt
4.8.6
Compiled against GDAL/OGR
2.1.2
Running against GDAL/OGR
2.1.2
Compiled against GEOS
3.5.1-CAPI-1.9.1
Running against GEOS
3.5.1-CAPI-1.9.1 r4246
PostgreSQL Client Version
9.4.9
SpatiaLite Version
4.3.0a
QWT Version
6.1.3
PROJ.4 Version
492
QScintilla2 Version
2.9.3

Answer 1

No puedo reproducirlo porque no tengo un conjunto adecuado de rastreos para probarlo.

Sin embargo, a partir de sus registros de error, puedo ver que SAGA está fallando (se bloquea). El "None type has no attribute crs" es el Procesamiento que se queja de que los rasters de salida están vacíos (porque SAGA GIS se estrelló)

Si la razón para hacer esto es encontrar el valor mínimo de una serie de rásteres alineados, podría probar con el programa GRASS r.series algoritmo para esto en su lugar. Hace lo mismo, y puede ser una solución adecuada. (Ciertamente está disponible en 2.18, no estoy seguro de su versión)