ContractViolation: 
Postcondition violation!
error in png_read_row(): Read Error
(/build/buildd/hugin-2014.0.0+dfsg/src/foreign/vigra/vigra_impex/png.cxx:389)

caught exception: 
Postcondition violation!
error in png_read_row(): Read Error
(/build/buildd/hugin-2014.0.0+dfsg/src/foreign/vigra/vigra_impex/png.cxx:389)

convert: unable to open image `frame-054-0000.tif': No such file or directory @ error/blob.c/OpenBlob/2709.
convert: no images defined `frame-054.png' @ error/convert.c/ConvertImageCommand/3210.
rm: cannot remove ‘frame-054-0000.tif’: No such file or directory
ContractViolation: 
Precondition violation!
did not find a matching file type.
(/build/buildd/hugin-2014.0.0+dfsg/src/foreign/vigra/vigra_impex/codecmanager.cxx:240)

caught exception: 
Precondition violation!
did not find a matching file type.
(/build/buildd/hugin-2014.0.0+dfsg/src/foreign/vigra/vigra_impex/codecmanager.cxx:240)

convert: unable to open image `frame-055-0000.tif': No such file or directory @ error/blob.c/OpenBlob/2709.
convert: no images defined `frame-055.png' @ error/convert.c/ConvertImageCommand/3210.
rm: cannot remove ‘frame-055-0000.tif’: No such file or directory
ContractViolation: 
Precondition violation!
did not find a matching file type.
(/build/buildd/hugin-2014.0.0+dfsg/src/foreign/vigra/vigra_impex/codecmanager.cxx:240)

caught exception: 
Precondition violation!
did not find a matching file type.
(/build/buildd/hugin-2014.0.0+dfsg/src/foreign/vigra/vigra_impex/codecmanager.cxx:240)

convert: unable to open image `frame-056-0000.tif': No such file or directory @ error/blob.c/OpenBlob/2709.
convert: no images defined `frame-056.png' @ error/convert.c/ConvertImageCommand/3210.
rm: cannot remove ‘frame-056-0000.tif’: No such file or directory
ContractViolation: 
Precondition violation!
did not find a matching file type.
(/build/buildd/hugin-2014.0.0+dfsg/src/foreign/vigra/vigra_impex/codecmanager.cxx:240)

caught exception: 
Precondition violation!
did not find a matching file type.
(/build/buildd/hugin-2014.0.0+dfsg/src/foreign/vigra/vigra_impex/codecmanager.cxx:240)

convert: unable to open image `frame-057-0000.tif': No such file or directory @ error/blob.c/OpenBlob/2709.
convert: no images defined `frame-057.png' @ error/convert.c/ConvertImageCommand/3210.
rm: cannot remove ‘frame-057-0000.tif’: No such file or directory
ContractViolation: 
Precondition violation!
did not find a matching file type.
(/build/buildd/hugin-2014.0.0+dfsg/src/foreign/vigra/vigra_impex/codecmanager.cxx:240)

caught exception: 
Precondition violation!
did not find a matching file type.
(/build/buildd/hugin-2014.0.0+dfsg/src/foreign/vigra/vigra_impex/codecmanager.cxx:240)

convert: unable to open image `frame-058-0000.tif': No such file or directory @ error/blob.c/OpenBlob/2709.
convert: no images defined `frame-058.png' @ error/convert.c/ConvertImageCommand/3210.
rm: cannot remove ‘frame-058-0000.tif’: No such file or directory
ContractViolation: 
Precondition violation!
did not find a matching file type.
(/build/buildd/hugin-2014.0.0+dfsg/src/foreign/vigra/vigra_impex/codecmanager.cxx:240)

caught exception: 
Precondition violation!
did not find a matching file type.
(/build/buildd/hugin-2014.0.0+dfsg/src/foreign/vigra/vigra_impex/codecmanager.cxx:240)

convert: unable to open image `frame-059-0000.tif': No such file or directory @ error/blob.c/OpenBlob/2709.
convert: no images defined `frame-059.png' @ error/convert.c/ConvertImageCommand/3210.
rm: cannot remove ‘frame-059-0000.tif’: No such file or directory
ContractViolation: 
Postcondition violation!
error in png_read_row(): Read Error
(/build/buildd/hugin-2014.0.0+dfsg/src/foreign/vigra/vigra_impex/png.cxx:389)

caught exception: 
Postcondition violation!
error in png_read_row(): Read Error
(/build/buildd/hugin-2014.0.0+dfsg/src/foreign/vigra/vigra_impex/png.cxx:389)

convert: unable to open image `frame-060-0000.tif': No such file or directory @ error/blob.c/OpenBlob/2709.
convert: no images defined `frame-060.png' @ error/convert.c/ConvertImageCommand/3210.
rm: cannot remove ‘frame-060-0000.tif’: No such file or directory