I have Ubuntu 18.04 and I installed melodic morenia (ROS) but I saw that I'm not able to use turtlebot. So I tried to use a Docker container with a ros indigo image but when I try to download packages with this command sudo apt-get install ros-indigo-turtlebot-gazebo, I have a lot of problems and packages are not installed! Someone could help me?

---

Edit: I'm so sorry but I'm new with this type of questions here. I tried to install ros kinetic directly on Ubuntu 16.04 without Docker and now it's all ok. But I have another problem: I have Ubuntu 18.04 again and I'm not able to run sudo rosdep init . The errore is: sudo: rosdep: command not found.

I installed ros with this command:

sudo apt install ros-melodic-desktop-full

but now the error is:

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:
 ros-melodic-desktop-full : Depends: ros-melodic-desktop but it is not going to be installed
                            Depends: ros-melodic-perception but it is not going to be installed
                            Depends: ros-melodic-simulators but it is not going to be installed
                            Depends: ros-melodic-urdf-sim-tutorial but it is not going to be installed
E: Unable to correct problems, you have held broken packages.

I tried to solve the problem with this command:

SUDO APT-GET INSTALL APTITUDE
SUDO APTITUDE ROS-MELODIC-DESKTOP-FULL

and the result was:

The following NEW packages will be installed:
  fltk1.3-doc{a} fluid{a} gir1.2-gtk-2.0{a} google-mock{a} googletest{a} 
  hddtemp{a} libapr1-dev{a} libaprutil1-dev{a} libassimp-dev{a} 
  libassimp4{a} libassuan-dev{a} libatk1.0-dev{a} libbz2-dev{a} 
  libcairo-script-interpreter2{a} libcairo2-dev{a} libcharls1{a} 
  libconsole-bridge-dev{a} libconsole-bridge0.4{a} libdc1394-22-dev{a} 
  libexif-dev{a} libexif-doc{a} libfltk-cairo1.3{a} libfltk-forms1.3{a} 
  libfltk-gl1.3{a} libfltk-images1.3{a} libfltk1.3{a} libfltk1.3-dev{a} 
  libgdcm2-dev{a} libgdcm2.8{a} libgdk-pixbuf2.0-dev{a} libgpg-error-dev{a} 
  libgpgme-dev{ab} libgphoto2-dev{a} libgtest-dev{a} libgtk2.0-dev{a} 
  libilmbase-dev{a} libjs-jquery-ui{a} liblept5{a} liblog4cxx-dev{a} 
  liblog4cxx10v5{a} liblz4-dev{a} libopencv-calib3d-dev{a} 
  libopencv-calib3d3.2{a} libopencv-contrib-dev{a} libopencv-contrib3.2{a} 
  libopencv-core-dev{a} libopencv-core3.2{a} libopencv-dev{a} 
  libopencv-features2d-dev{a} libopencv-features2d3.2{a} 
  libopencv-flann-dev{a} libopencv-flann3.2{a} libopencv-highgui-dev{a} 
  libopencv-highgui3.2{a} libopencv-imgcodecs-dev{a} 
  libopencv-imgcodecs3.2{a} libopencv-imgproc-dev{a} 
  libopencv-imgproc3.2{a} libopencv-ml-dev{a} libopencv-ml3.2{a} 
  libopencv-objdetect-dev{a} libopencv-objdetect3.2{a} 
  libopencv-photo-dev{a} libopencv-photo3.2{a} libopencv-shape-dev{a} 
  libopencv-shape3.2{a} libopencv-stitching-dev{a} 
  libopencv-stitching3.2{a} libopencv-superres-dev{a} 
  libopencv-superres3.2{a} libopencv-ts-dev{a} libopencv-video-dev{a} 
  libopencv-video3.2{a} libopencv-videoio-dev{a} libopencv-videoio3.2{a} 
  libopencv-videostab-dev{a} libopencv-videostab3.2{a} libopencv-viz-dev{a} 
  libopencv-viz3.2{a} libopencv3.2-java{a} libopencv3.2-jni{a} 
  libopenexr-dev{a} libpango1.0-dev{ab} libpixman-1-dev{a} libpoco-dev{a} 
  libpococrypto50{a} libpocodata50{a} libpocodatamysql50{a} 
  libpocodataodbc50{a} libpocodatasqlite50{a} libpocofoundation50{a} 
  libpocojson50{a} libpocomongodb50{a} libpoconet50{a} libpoconetssl50{a} 
  libpocoredis50{a} libpocoutil50{a} libpocoxml50{a} libpocozip50{a} 
  libraw1394-dev{a} libraw1394-tools{a} libsctp-dev{a} libsctp1{a} 
  libsocket++1{a} libtesseract4{a} liburdfdom-dev{a} 
  liburdfdom-headers-dev{a} liburdfdom-model{a} liburdfdom-model-state{a} 
  liburdfdom-sensor{a} liburdfdom-world{a} libxcb-shm0-dev{a} 
  libxcomposite-dev{a} libxcursor-dev{a} libxinerama-dev{a} 
  libxml2-utils{a} libxrandr-dev{a} opencv-data{a} pyqt5-dev{a} 
  python-backports.functools-lru-cache{a} python-bs4{a} python-cycler{a} 
  python-defusedxml{a} python-empy{a} python-gnupg{a} python-html5lib{a} 
  python-lxml{a} python-matplotlib{a} python-matplotlib-data{a} 
  python-netifaces{a} python-opencv{a} python-opengl{a} python-psutil{a} 
  python-pydot{a} python-pyqt5{a} python-pyqt5.qtopengl{a} 
  python-pyqt5.qtsvg{a} python-pyqt5.qtwebkit{a} python-rosdep{a} 
  python-sip{a} python-sip-dev{a} python-subprocess32{a} 
  python-webencodings{a} python-wxtools{a} ros-melodic-actionlib{a} 
  ros-melodic-actionlib-msgs{a} ros-melodic-actionlib-tutorials{a} 
  ros-melodic-angles{a} ros-melodic-bond{a} ros-melodic-bond-core{a} 
  ros-melodic-bondcpp{a} ros-melodic-bondpy{a} 
  ros-melodic-camera-calibration{a} 
  ros-melodic-camera-calibration-parsers{a} 
  ros-melodic-camera-info-manager{a} ros-melodic-catkin{a} 
  ros-melodic-class-loader{a} ros-melodic-cmake-modules{a} 
  ros-melodic-common-msgs{a} ros-melodic-common-tutorials{a} 
  ros-melodic-compressed-depth-image-transport{a} 
  ros-melodic-compressed-image-transport{a} ros-melodic-control-msgs{a} 
  ros-melodic-control-toolbox{a} ros-melodic-controller-interface{a} 
  ros-melodic-controller-manager{a} ros-melodic-controller-manager-msgs{a} 
  ros-melodic-cpp-common{a} ros-melodic-cv-bridge{a} 
  ros-melodic-depth-image-proc{a} ros-melodic-desktop{a} 
  ros-melodic-desktop-full ros-melodic-diagnostic-aggregator{a} 
  ros-melodic-diagnostic-analysis{a} 
  ros-melodic-diagnostic-common-diagnostics{a} 
  ros-melodic-diagnostic-msgs{a} ros-melodic-diagnostic-updater{a} 
  ros-melodic-diagnostics{a} ros-melodic-diff-drive-controller{a} 
  ros-melodic-dynamic-reconfigure{a} ros-melodic-eigen-conversions{a} 
  ros-melodic-executive-smach{a} ros-melodic-filters{a} 
  ros-melodic-forward-command-controller{a} ros-melodic-gazebo-dev{a} 
  ros-melodic-gazebo-msgs{a} ros-melodic-gazebo-plugins{a} 
  ros-melodic-gazebo-ros{a} ros-melodic-gazebo-ros-control{a} 
  ros-melodic-gazebo-ros-pkgs{a} ros-melodic-gencpp{a} 
  ros-melodic-geneus{a} ros-melodic-genlisp{a} ros-melodic-genmsg{a} 
  ros-melodic-gennodejs{a} ros-melodic-genpy{a} ros-melodic-geometry{a} 
  ros-melodic-geometry-msgs{a} ros-melodic-geometry-tutorials{a} 
  ros-melodic-gl-dependency{a} ros-melodic-hardware-interface{a} 
  ros-melodic-image-common{a} ros-melodic-image-geometry{a} 
  ros-melodic-image-pipeline{a} ros-melodic-image-proc{a} 
  ros-melodic-image-publisher{a} ros-melodic-image-rotate{a} 
  ros-melodic-image-transport{a} ros-melodic-image-transport-plugins{a} 
  ros-melodic-image-view{a} ros-melodic-interactive-marker-tutorials{a} 
  ros-melodic-interactive-markers{a} ros-melodic-joint-limits-interface{a} 
  ros-melodic-joint-state-controller{a} 
  ros-melodic-joint-state-publisher{a} ros-melodic-kdl-conversions{a} 
  ros-melodic-kdl-parser{a} ros-melodic-kdl-parser-py{a} 
  ros-melodic-laser-assembler{a} ros-melodic-laser-filters{a} 
  ros-melodic-laser-geometry{a} ros-melodic-laser-pipeline{a} 
  ros-melodic-librviz-tutorial{a} ros-melodic-map-msgs{a} 
  ros-melodic-media-export{a} ros-melodic-message-filters{a} 
  ros-melodic-message-generation{a} ros-melodic-message-runtime{a} 
  ros-melodic-mk{a} ros-melodic-nav-msgs{a} ros-melodic-nodelet{a} 
  ros-melodic-nodelet-core{a} ros-melodic-nodelet-topic-tools{a} 
  ros-melodic-nodelet-tutorial-math{a} ros-melodic-orocos-kdl{a} 
  ros-melodic-pcl-conversions{a} ros-melodic-pcl-msgs{a} 
  ros-melodic-pcl-ros{a} ros-melodic-perception{a} 
  ros-melodic-perception-pcl{a} ros-melodic-pluginlib{a} 
  ros-melodic-pluginlib-tutorials{a} ros-melodic-polled-camera{a} 
  ros-melodic-position-controllers{a} ros-melodic-python-orocos-kdl{a} 
  ros-melodic-python-qt-binding{a} ros-melodic-qt-dotgraph{a} 
  ros-melodic-qt-gui{a} ros-melodic-qt-gui-cpp{a} 
  ros-melodic-qt-gui-py-common{a} ros-melodic-qwt-dependency{a} 
  ros-melodic-realtime-tools{a} ros-melodic-resource-retriever{a} 
  ros-melodic-robot{a} ros-melodic-robot-state-publisher{a} 
  ros-melodic-ros{a} ros-melodic-ros-base{a} ros-melodic-ros-comm{a} 
  ros-melodic-ros-core{a} ros-melodic-ros-environment{a} 
  ros-melodic-ros-tutorials{a} ros-melodic-rosbag{a} 
  ros-melodic-rosbag-migration-rule{a} ros-melodic-rosbag-storage{a} 
  ros-melodic-rosbash{a} ros-melodic-rosboost-cfg{a} 
  ros-melodic-rosbuild{a} ros-melodic-rosclean{a} ros-melodic-rosconsole{a} 
  ros-melodic-rosconsole-bridge{a} ros-melodic-roscpp{a} 
  ros-melodic-roscpp-core{a} ros-melodic-roscpp-serialization{a} 
  ros-melodic-roscpp-traits{a} ros-melodic-roscpp-tutorials{a} 
  ros-melodic-roscreate{a} ros-melodic-rosgraph{a} 
  ros-melodic-rosgraph-msgs{a} ros-melodic-roslang{a} 
  ros-melodic-roslaunch{a} ros-melodic-roslib{a} ros-melodic-roslint{a} 
  ros-melodic-roslisp{a} ros-melodic-roslz4{a} ros-melodic-rosmake{a} 
  ros-melodic-rosmaster{a} ros-melodic-rosmsg{a} ros-melodic-rosnode{a} 
  ros-melodic-rosout{a} ros-melodic-rospack{a} ros-melodic-rosparam{a} 
  ros-melodic-rospy{a} ros-melodic-rospy-tutorials{a} 
  ros-melodic-rosservice{a} ros-melodic-rostest{a} ros-melodic-rostime{a} 
  ros-melodic-rostopic{a} ros-melodic-rosunit{a} ros-melodic-roswtf{a} 
  ros-melodic-rqt-action{a} ros-melodic-rqt-bag{a} 
  ros-melodic-rqt-bag-plugins{a} ros-melodic-rqt-common-plugins{a} 
  ros-melodic-rqt-console{a} ros-melodic-rqt-dep{a} 
  ros-melodic-rqt-graph{a} ros-melodic-rqt-gui{a} 
  ros-melodic-rqt-gui-cpp{a} ros-melodic-rqt-gui-py{a} 
  ros-melodic-rqt-image-view{a} ros-melodic-rqt-launch{a} 
  ros-melodic-rqt-logger-level{a} ros-melodic-rqt-moveit{a} 
  ros-melodic-rqt-msg{a} ros-melodic-rqt-nav-view{a} 
  ros-melodic-rqt-plot{a} ros-melodic-rqt-pose-view{a} 
  ros-melodic-rqt-publisher{a} ros-melodic-rqt-py-common{a} 
  ros-melodic-rqt-py-console{a} ros-melodic-rqt-reconfigure{a} 
  ros-melodic-rqt-robot-dashboard{a} ros-melodic-rqt-robot-monitor{a} 
  ros-melodic-rqt-robot-plugins{a} ros-melodic-rqt-robot-steering{a} 
  ros-melodic-rqt-runtime-monitor{a} ros-melodic-rqt-rviz{a} 
  ros-melodic-rqt-service-caller{a} ros-melodic-rqt-shell{a} 
  ros-melodic-rqt-srv{a} ros-melodic-rqt-tf-tree{a} ros-melodic-rqt-top{a} 
  ros-melodic-rqt-topic{a} ros-melodic-rqt-web{a} ros-melodic-rviz{a} 
  ros-melodic-rviz-plugin-tutorials{a} ros-melodic-rviz-python-tutorial{a} 
  ros-melodic-self-test{a} ros-melodic-sensor-msgs{a} 
  ros-melodic-shape-msgs{a} ros-melodic-simulators{a} ros-melodic-smach{a} 
  ros-melodic-smach-msgs{a} ros-melodic-smach-ros{a} ros-melodic-smclib{a} 
  ros-melodic-stage{a} ros-melodic-stage-ros{a} ros-melodic-std-msgs{a} 
  ros-melodic-std-srvs{a} ros-melodic-stereo-image-proc{a} 
  ros-melodic-stereo-msgs{a} ros-melodic-tf{a} 
  ros-melodic-tf-conversions{a} ros-melodic-tf2{a} ros-melodic-tf2-eigen{a} 
  ros-melodic-tf2-geometry-msgs{a} ros-melodic-tf2-kdl{a} 
  ros-melodic-tf2-msgs{a} ros-melodic-tf2-py{a} ros-melodic-tf2-ros{a} 
  ros-melodic-theora-image-transport{a} ros-melodic-topic-tools{a} 
  ros-melodic-trajectory-msgs{a} ros-melodic-transmission-interface{a} 
  ros-melodic-turtle-actionlib{a} ros-melodic-turtle-tf{a} 
  ros-melodic-turtle-tf2{a} ros-melodic-turtlesim{a} ros-melodic-urdf{a} 
  ros-melodic-urdf-parser-plugin{a} ros-melodic-urdf-sim-tutorial{a} 
  ros-melodic-urdf-tutorial{a} ros-melodic-urdfdom-py{a} 
  ros-melodic-vision-opencv{a} 
  ros-melodic-visualization-marker-tutorials{a} 
  ros-melodic-visualization-msgs{a} ros-melodic-visualization-tutorials{a} 
  ros-melodic-viz{a} ros-melodic-webkit-dependency{a} ros-melodic-xacro{a} 
  ros-melodic-xmlrpcpp{a} sbcl{a} sip-dev{a} x11proto-composite-dev{a} 
  x11proto-randr-dev{a} x11proto-xinerama-dev{a} 
0 packages upgraded, 386 newly installed, 0 to remove and 0 not upgraded.
Need to get 78,2 MB/250 MB of archives. After unpacking 483 MB will be used.
The following packages have unmet dependencies:
 libgpgme-dev : Depends: libgpgme11 (= 1.10.0-1ubuntu1) but 1.10.0-1ubuntu2 is installed
 libpango1.0-dev : Depends: gir1.2-pango-1.0 (= 1.40.14-1) but 1.40.14-1ubuntu0.1 is installed
                   Depends: libpango-1.0-0 (= 1.40.14-1) but 1.40.14-1ubuntu0.1 is installed
                   Depends: libpangocairo-1.0-0 (= 1.40.14-1) but 1.40.14-1ubuntu0.1 is installed
                   Depends: libpangoft2-1.0-0 (= 1.40.14-1) but 1.40.14-1ubuntu0.1 is installed
                   Depends: libpangoxft-1.0-0 (= 1.40.14-1) but 1.40.14-1ubuntu0.1 is installed
The following actions will resolve these dependencies:

       Keep the following packages at their current version:         
1)       libgpgme-dev [Not Installed]                                
2)       libgtk2.0-dev [Not Installed]                               
3)       libpango1.0-dev [Not Installed]                             
4)       ros-melodic-actionlib [Not Installed]                       
5)       ros-melodic-actionlib-tutorials [Not Installed]             
6)       ros-melodic-common-tutorials [Not Installed]                
7)       ros-melodic-compressed-depth-image-transport [Not Installed]
8)       ros-melodic-compressed-image-transport [Not Installed]      
9)       ros-melodic-control-toolbox [Not Installed]                 
10)      ros-melodic-depth-image-proc [Not Installed]                
11)      ros-melodic-desktop [Not Installed]                         
12)      ros-melodic-desktop-full [Not Installed]                    
13)      ros-melodic-diagnostic-analysis [Not Installed]             
14)      ros-melodic-diagnostic-common-diagnostics [Not Installed]   
15)      ros-melodic-diagnostics [Not Installed]                     
16)      ros-melodic-diff-drive-controller [Not Installed]           
17)      ros-melodic-dynamic-reconfigure [Not Installed]             
18)      ros-melodic-executive-smach [Not Installed]                 
19)      ros-melodic-gazebo-plugins [Not Installed]                  
20)      ros-melodic-gazebo-ros [Not Installed]                      
21)      ros-melodic-gazebo-ros-control [Not Installed]              
22)      ros-melodic-gazebo-ros-pkgs [Not Installed]                 
23)      ros-melodic-geometry [Not Installed]                        
24)      ros-melodic-geometry-tutorials [Not Installed]              
25)      ros-melodic-image-pipeline [Not Installed]                  
26)      ros-melodic-image-proc [Not Installed]                      
27)      ros-melodic-image-publisher [Not Installed]                 
28)      ros-melodic-image-rotate [Not Installed]                    
29)      ros-melodic-image-transport-plugins [Not Installed]         
30)      ros-melodic-image-view [Not Installed]                      
31)      ros-melodic-interactive-marker-tutorials [Not Installed]    
32)      ros-melodic-interactive-markers [Not Installed]             
33)      ros-melodic-laser-assembler [Not Installed]                 
34)      ros-melodic-laser-filters [Not Installed]                   
35)      ros-melodic-laser-geometry [Not Installed]                  
36)      ros-melodic-laser-pipeline [Not Installed]                  
37)      ros-melodic-librviz-tutorial [Not Installed]                
38)      ros-melodic-nodelet-core [Not Installed]                    
39)      ros-melodic-nodelet-topic-tools [Not Installed]             
40)      ros-melodic-pcl-ros [Not Installed]                         
41)      ros-melodic-perception [Not Installed]                      
42)      ros-melodic-perception-pcl [Not Installed]                  
43)      ros-melodic-robot [Not Installed]                           
44)      ros-melodic-robot-state-publisher [Not Installed]           
45)      ros-melodic-ros-base [Not Installed]                        
46)      ros-melodic-ros-comm [Not Installed]                        
47)      ros-melodic-ros-core [Not Installed]                        
48)      ros-melodic-rosbag [Not Installed]                          
49)      ros-melodic-rosbag-storage [Not Installed]                  
50)      ros-melodic-rosmsg [Not Installed]                          
51)      ros-melodic-rosnode [Not Installed]                         
52)      ros-melodic-rosservice [Not Installed]                      
53)      ros-melodic-rostopic [Not Installed]                        
54)      ros-melodic-roswtf [Not Installed]                          
55)      ros-melodic-rqt-action [Not Installed]                      
56)      ros-melodic-rqt-bag [Not Installed]                         
57)      ros-melodic-rqt-bag-plugins [Not Installed]                 
58)      ros-melodic-rqt-common-plugins [Not Installed]              
59)      ros-melodic-rqt-console [Not Installed]                     
60)      ros-melodic-rqt-dep [Not Installed]                         
61)      ros-melodic-rqt-graph [Not Installed]                       
62)      ros-melodic-rqt-launch [Not Installed]                      
63)      ros-melodic-rqt-logger-level [Not Installed]                
64)      ros-melodic-rqt-moveit [Not Installed]                      
65)      ros-melodic-rqt-msg [Not Installed]                         
66)      ros-melodic-rqt-nav-view [Not Installed]                    
67)      ros-melodic-rqt-plot [Not Installed]                        
68)      ros-melodic-rqt-pose-view [Not Installed]                   
69)      ros-melodic-rqt-publisher [Not Installed]                   
70)      ros-melodic-rqt-py-common [Not Installed]                   
71)      ros-melodic-rqt-reconfigure [Not Installed]                 
72)      ros-melodic-rqt-robot-dashboard [Not Installed]             
73)      ros-melodic-rqt-robot-monitor [Not Installed]               
74)      ros-melodic-rqt-robot-plugins [Not Installed]               
75)      ros-melodic-rqt-robot-steering [Not Installed]              
76)      ros-melodic-rqt-rviz [Not Installed]                        
77)      ros-melodic-rqt-service-caller [Not Installed]              
78)      ros-melodic-rqt-srv [Not Installed]                         
79)      ros-melodic-rqt-tf-tree [Not Installed]                     
80)      ros-melodic-rqt-topic [Not Installed]                       
81)      ros-melodic-rviz [Not Installed]                            
82)      ros-melodic-rviz-plugin-tutorials [Not Installed]           
83)      ros-melodic-rviz-python-tutorial [Not Installed]            
84)      ros-melodic-simulators [Not Installed]                      
85)      ros-melodic-smach-ros [Not Installed]                       
86)      ros-melodic-stage [Not Installed]                           
87)      ros-melodic-stage-ros [Not Installed]                       
88)      ros-melodic-stereo-image-proc [Not Installed]               
89)      ros-melodic-tf [Not Installed]                              
90)      ros-melodic-tf-conversions [Not Installed]                  
91)      ros-melodic-tf2-geometry-msgs [Not Installed]               
92)      ros-melodic-tf2-kdl [Not Installed]                         
93)      ros-melodic-tf2-ros [Not Installed]                         
94)      ros-melodic-theora-image-transport [Not Installed]          
95)      ros-melodic-turtle-actionlib [Not Installed]                
96)      ros-melodic-turtle-tf [Not Installed]                       
97)      ros-melodic-turtle-tf2 [Not Installed]                      
98)      ros-melodic-urdf-sim-tutorial [Not Installed]               
99)      ros-melodic-urdf-tutorial [Not Installed]                   
100)     ros-melodic-visualization-tutorials [Not Installed]         
101)     ros-melodic-viz [Not Installed]                             


Accept this solution? [Y/n/q/?] y
No packages will be installed, upgraded, or removed.
0 packages upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
Need to get 0 B/161 MB of archives. After unpacking 0 B will be used.

Could you help me in someway? thank you a lot.