I swear I had this installed! but when I attempted to run it I couldn't find it. so I used apt resulting init needed a program. I installed the program and it unistalled hugin. Huh? well... I need luminance right now so I'll live without hugin. so how do I get the two programs to live in harmony? sudo apt-get install luminance-hdr [sudo] password for bmike1: Reading package lists... Done Building dependency tree Reading state information... Done Some packages could not be installed. This may mean that you have requested an impossible situation or if you are using the unstable distribution that some required packages have not yet been created or been moved out of Incoming. The following information may help to resolve the situation: The following packages have unmet dependencies: luminance-hdr : Depends: libgsl0ldbl (>= 1.9) but it is not going to be installed E: Unable to correct problems, you have held broken packages. bmike1@MikesBeast ~ $ sudo apt-get install libgsl0lbdl Reading package lists... Done Building dependency tree Reading state information... Done E: Unable to locate package libgsl0lbdl bmike1@MikesBeast ~ $ sudo apt-get install libgsl0ldbl Reading package lists... Done Building dependency tree Reading state information... Done Suggested packages: gsl-ref-psdoc gsl-doc-pdf gsl-doc-info gsl-ref-html The following packages will be REMOVED: enblend enfuse hugin libgsl2 The following NEW packages will be installed: libgsl0ldbl 0 upgraded, 1 newly installed, 4 to remove and 6 not upgraded. Need to get 0 B/878 kB of archives. After this operation, 18.3 MB disk space will be freed. Do you want to continue? [Y/n] (Reading database ... 272030 files and directories currently installed.) Removing hugin (2016.0.0+dfsg-1ubuntu1~trusty) ... Removing enblend (4.1.5+dfsg-1ubuntu1~trusty) ... Removing enfuse (4.1.5+dfsg-1ubuntu1~trusty) ... Removing libgsl2:amd64 (2.1+dfsg-2ubuntu1~trusty) ... Processing triggers for mime-support (3.54ubuntu1.1) ... Processing triggers for desktop-file-utils (0.22-1ubuntu1) ... Processing triggers for shared-mime-info (1.2-0ubuntu3) ... Unknown media type in type 'all/all' Unknown media type in type 'all/allfiles' Unknown media type in type 'uri/mms' Unknown media type in type 'uri/mmst' Unknown media type in type 'uri/mmsu' Unknown media type in type 'uri/pnm' Unknown media type in type 'uri/rtspt' Unknown media type in type 'uri/rtspu' ^[[AProcessing triggers for man-db (2.6.7.1-1ubuntu1) ... Processing triggers for doc-base (0.10.5) ... Processing 2 removed doc-base files... Registering documents with scrollkeeper... Processing triggers for install-info (5.2.0.dfsg.1-2) ... Processing triggers for libc-bin (2.19-0ubuntu6.9) ... Selecting previously unselected package libgsl0ldbl. (Reading database ... 271974 files and directories currently installed.) Preparing to unpack .../libgsl0ldbl_1.16+dfsg-1ubuntu1_amd64.deb ... Unpacking libgsl0ldbl (1.16+dfsg-1ubuntu1) ... Setting up libgsl0ldbl (1.16+dfsg-1ubuntu1) ... Processing triggers for libc-bin (2.19-0ubuntu6.9) ... bmike1@MikesBeast ~ $ $ sudo apt-get install luminance-hdr Reading package lists... Done Building dependency tree Reading state information... Done The following packages were automatically installed and are no longer required: hugin-data hugin-tools libboost-filesystem1.54.0 libpano13-3 libvigraimpex5 libwxbase3.0-0 libwxgtk3.0-0 Use 'apt-get autoremove' to remove them. The following extra packages will be installed: libccfits0 libcfitsio3 libqt5concurrent5 The following NEW packages will be installed: libccfits0 libcfitsio3 libqt5concurrent5 luminance-hdr 0 upgraded, 4 newly installed, 0 to remove and 6 not upgraded. Need to get 5,033 kB/5,662 kB of archives. After this operation, 13.7 MB of additional disk space will be used. Do you want to continue? [Y/n] y Get:1 http://ppa.launchpad.net/dhor/myway/ubuntu/ trusty/main luminance-hdr amd64 2.4.0-2dhor~trusty [5,033 kB] Fetched 5,033 kB in 5s (938 kB/s) Selecting previously unselected package libcfitsio3:amd64. (Reading database ... 271989 files and directories currently installed.) Preparing to unpack .../libcfitsio3_3.340-2ubuntu2_amd64.deb ... Unpacking libcfitsio3:amd64 (3.340-2ubuntu2) ... Selecting previously unselected package libccfits0:amd64. Preparing to unpack .../libccfits0_2.4-1ubuntu1_amd64.deb ... Unpacking libccfits0:amd64 (2.4-1ubuntu1) ... Selecting previously unselected package libqt5concurrent5:amd64. Preparing to unpack .../libqt5concurrent5_5.2.1+dfsg-1ubuntu14.3_amd64.deb ... Unpacking libqt5concurrent5:amd64 (5.2.1+dfsg-1ubuntu14.3) ... Selecting previously unselected package luminance-hdr. Preparing to unpack .../luminance-hdr_2.4.0-2dhor~trusty_amd64.deb ... Unpacking luminance-hdr (2.4.0-2dhor~trusty) ... Processing triggers for mime-support (3.54ubuntu1.1) ... Processing triggers for desktop-file-utils (0.22-1ubuntu1) ... Processing triggers for hicolor-icon-theme (0.13-1) ... Setting up libcfitsio3:amd64 (3.340-2ubuntu2) ... Setting up libccfits0:amd64 (2.4-1ubuntu1) ... Setting up libqt5concurrent5:amd64 (5.2.1+dfsg-1ubuntu14.3) ... Setting up luminance-hdr (2.4.0-2dhor~trusty) ... Processing triggers for libc-bin (2.19-0ubuntu6.9) ... -- :-)~MIKE~(-: