OGR: "WARNING Cannot open <file>" when they seem to open fine?

[qgib]

Author Name: Loren Amelang (@LorenAmelang)
Original Redmine Issue: 19597
Affected QGIS version: 3.2.1
Redmine category:processing/gdal

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During a session where I used:
Raster -> Extraction -> Clip Raster by Mask Layer
Raster -> Extraction -> Clip Raster by Extent
Raster -> Miscellaneous -> Merge

Each time I tried one of these operations with "Open Output File" checked, it made another OGR error, as in:

2018-08-09T17:56:41 WARNING Cannot open C:/Users/loren/Giant Files/HEC-RAS Dam Break/QGIS Projects/FEMA808/DEM_47_435_to2226_clip_manual.tif.()
2018-08-09T18:01:12 WARNING Cannot open C:/Users/loren/Giant Files/HEC-RAS Dam Break/QGIS Projects/FEMA808/DEM_47_436_to2226_clip_manual.tif.()
2018-08-09T18:11:12 WARNING Cannot open C:/Users/loren/Giant Files/HEC-RAS Dam Break/QGIS Projects/FEMA808/DEM_2226_clip_man_merge.tif.()

All of those files (and lots more before them) appeared to open normally in the Layers menu. What can this mean?

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Related issue(s): #27411 (relates)
Redmine related issue(s): 19584

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[qgib]

Author Name: Jürgen Fischer (@jef-n)

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• relates was configured as Raster Clip and Merge issues (QGIS 3.2.1) #27411

[qgib]

Author Name: Giovanni Manghi (@gioman)

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Other than the warning, the tools work as expected? can you see the same warnings/errors with the same data (and the same paths) on QGIS 2.18?

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• priority_id was changed from Low to Normal
• category_id was changed from Processing/OGR to Processing/GDAL
• status_id was changed from Open to Feedback

[qgib]

Author Name: Loren Amelang (@LorenAmelang)

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@giovanni,

Yes, the files appeared in my project as expected. I was surprised to see the warnings. I never had 2.18, I started this adventure with 3.0. Don't remember seeing such warnings when manipulating vector files, in any version, but maybe I just didn't look in that section of Messages. They don't pop up by themselves anywhere.

[qgib]

Author Name: Nyall Dawson (@nyalldawson)

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#7608

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• status_id was changed from Feedback to In Progress
• pull_request_patch_supplied was changed from 0 to 1

[qgib]

Author Name: Nyall Dawson (@nyalldawson)

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Applied in changeset 4930061.

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• status_id was changed from In Progress to Closed
• done_ratio was changed from 0 to 100

[qgib]

Author Name: Giovanni Manghi (@gioman)

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• resolution was changed from to fixed/implemented