convert: unable to open image `gnomonic_corr_grid.png': No such file or directory @ error/blob.c/OpenBlob/2709. convert: unable to open file `gnomonic_corr_grid.png' @ error/png.c/ReadPNGImage/3922. convert: no images defined `tmp.png' @ error/convert.c/ConvertImageCommand/3210. rm: cannot remove ‘tmp.png’: No such file or directory rm: cannot remove ‘gnomonic_corr_grid.png’: No such file or directory composite: unable to open image `nmn.png': No such file or directory @ error/blob.c/OpenBlob/2709. composite: unable to open file `nmn.png' @ error/png.c/ReadPNGImage/3922. composite: missing an image filename `/tmp/tmp-7415.png' @ error/composite.c/CompositeImageCommand/1613. composite: unable to open image `solobs.png': No such file or directory @ error/blob.c/OpenBlob/2709. composite: unable to open file `solobs.png' @ error/png.c/ReadPNGImage/3922. composite: missing an image filename `voksenlia-20161123161141.jpg' @ error/composite.c/CompositeImageCommand/1613.