error in gdal --> merge

[qgib]

Author Name: stefano campus (@skampus)
Original Redmine Issue: 6280
Affected QGIS version: 1.8.0
Redmine category:gdal_tools

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when i try to launch the merge command of gdal, it returns this error

Traceback (most recent call last):
File "C:\OSGeo4W\bin\gdal_merge.py", line 36, in
import gdal
File "C:\OSGeo4W\apps\Python27\lib\site-packages\gdal.py", line 2, in
from osgeo.gdal import deprecation_warn
File "C:\OSGeo4W\apps\Python27\lib\site-packages\osgeo\init.py", line 21, in
_gdal = swig_import_helper()
File "C:\OSGeo4W\apps\Python27\lib\site-packages\osgeo\init.py", line 17, in swig_import_helper
_mod = imp.load_module('_gdal', fp, pathname, description)
ImportError: DLL load failed: Impossibile trovare la procedura specificata.

error occurs both in qgis 1.8 and master

same error if i launch the commando from osgeo prompt:

C:\>gdal_merge.bat -of GTiff -o E:/temp/RiesgoGuaya/Danno_10cm.tif E:/temp/Riesg
oGuaya/Danno_A_10cm.tif E:/temp/RiesgoGuaya/Danno_B_10cm.tif E:/temp/RiesgoGuaya
/Danno_C_10cm.tif
C:\OSGeo4W\\apps\Python27\lib\site.py:158: Warning: 'with' will become a reserve
d keyword in Python 2.6
'import site' failed; use -v for traceback
C:\OSGeo4W\\apps\Python27\lib\linecache.py:127: Warning: 'with' will become a re
served keyword in Python 2.6
Traceback (most recent call last):
File "C:\OSGeo4W\\bin\gdal_merge.py", line 36, in
import gdal
ImportError: No module named gdal

[qgib]

Author Name: Giovanni Manghi (@gioman)

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If it happens from the CLI then it should not be qgis issue. You need to fix before the CLI issue and then try again qgis.

[qgib]

Author Name: stefano campus (@skampus)

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so, i have re-installed gdal by osgeo but error exists.
this error comes also for other gdal modules, like polygonyze.
gdal version is 1.9.1-rc2-2

[qgib]

Author Name: Giovanni Manghi (@gioman)

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stefano campus wrote:

so, i have re-installed gdal by osgeo but error exists.
this error comes also for other gdal modules, like polygonyze.
gdal version is 1.9.1-rc2-2

if gdal tools/osgeo4w installation is somehow broken, then there is no way that gdal tools can work in qgis.

[qgib]

Author Name: Paolo Cavallini (@pcav)

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Have you installed python-gdal?

[qgib]

Author Name: stefano campus (@skampus)

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yes. from osgeo i have first downgraded gdal then upgraded to last version that now is 1.9.1-1 (rc2-2 disappeared).
but error is still present...
:-(

[qgib]

Author Name: Giovanni Manghi (@gioman)

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stefano campus wrote:

yes. from osgeo i have first downgraded gdal then upgraded to last version that now is 1.9.1-1 (rc2-2 disappeared).
but error is still present...
:-(

does this happens on any osgeo4w installation?

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• status_id was changed from Open to Feedback

[qgib]

Author Name: stefano campus (@skampus)

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today i have updated qgis master to 1.9.55 and new version of gdal (under "command_utilities" list) appeared.
it is 1.9.1-2.
but error still exists...

[qgib]

Author Name: Giovanni Manghi (@gioman)

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but error still exists...

it does happen on any osgeo4w installation or only on your machine?

[qgib]

Author Name: Paolo Cavallini (@pcav)

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• fixed_version_id was configured as Version 2.0.0

[qgib]

Author Name: Giovanni Manghi (@gioman)

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• assigned_to_id was configured as Giuseppe Sucameli

[qgib]

Author Name: Paolo Cavallini (@pcav)

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• assigned_to_id was changed from Giuseppe Sucameli to anonymous

[qgib]

Author Name: stefano campus (@skampus)

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• status_id was changed from Feedback to Closed

[qgib]

Author Name: Jürgen Fischer (@jef-n)

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• assigned_to_id removed anonymous