Problems with imread in OCTAVE

[Arrate Alonso]

Following problem when using imread function:

>> imcolumna=imread('c:\\pro\\imagen\\Imagen1\\original.jpg');
cmd = convert  'c:\pro\imagen\Imagen1\original.jpg' pgm:C:/Archivos\ de\ programa/GNU\ Octave\ 2.1.50/tmp/oct-610acbc8.e 2>/dev/null
error: could not read file: C:/Archivos de programa/GNU Octave 2.1.50/tmp/oct-610acbc8.e
error: called from `imread' in file `/opt/octave/share/octave/2.1.50/site/m/octave-forge/image/imread.m'
error: evaluating assignment _expression_ near line 7, column 10

Any solution? URGENT!!!!!

                                  <Arrate Alonso Gómez>