Another ImportError: No module named services_quiz.srv

Hello, it seems like I cannot build the custom message for a service. I already tried all the solutions as it clearly visible a lot of people are struggeling with this.

Error Code:

NODES
/
bb8_move_in_custom_service (services_quiz/bb8_move_custom_service_server.py)

ROS_MASTER_URI=http://master:11311

process[bb8_move_in_custom_service-1]: started with pid [13083]
Traceback (most recent call last):
File “/home/user/catkin_ws/src/services_quiz/src/bb8_move_custom_service_server.py”, line 4, in
from services_quiz.srv import BB8CustomServiceMessage, BB8CustomServiceMessageResponse # you import the service message python classes generated from Empty.srv.
ImportError: No module named services_quiz.srv
[bb8_move_in_custom_service-1] process has died [pid 13083, exit code 1, cmd /home/user/catkin_ws/src/services_quiz/src/bb8_move_custom_service_server.py __name:=bb8_move_in_custom_service __log:=/home/user/.ros/log/341a7be0-9aab-11ea-bc1c-0a23ce3dcc4a/bb8_move_in_custom_service-1.log].
log file: /home/user/.ros/log/341a7be0-9aab-11ea-bc1c-0a23ce3dcc4a/bb8_move_in_custom_service-1*.log
all processes on machine have died, roslaunch will exit
shutting down processing monitor…
… shutting down processing monitor complete
done


rm -rf build
catkin_make
source devel/setup.bash

did not work. I sourced all the shells, didn’t work

These is my CMakeLists.txt:

> cmake_minimum_required(VERSION 3.0.2)
> 
> project(services_quiz)
> 
> ## Compile as C++11, supported in ROS Kinetic and newer
> 
> # add_compile_options(-std=c++11)
> 
> ## Find catkin macros and libraries
> 
> ## if COMPONENTS list like find_package(catkin REQUIRED COMPONENTS xyz)
> 
> ## is used, also find other catkin packages
> 
> find_package(catkin REQUIRED COMPONENTS
> 
>   rospy
> 
>   std_msgs
> 
>   message_generation
> 
> )
> 
> ## System dependencies are found with CMake's conventions
> 
> # find_package(Boost REQUIRED COMPONENTS system)
> 
> ## Uncomment this if the package has a setup.py. This macro ensures
> 
> ## modules and global scripts declared therein get installed
> 
> ## See http://ros.org/doc/api/catkin/html/user_guide/setup_dot_py.html
> 
> # catkin_python_setup()
> 
> ################################################
> 
> ## Declare ROS messages, services and actions ##
> 
> ################################################
> 
> ## To declare and build messages, services or actions from within this
> 
> ## package, follow these steps:
> 
> ## * Let MSG_DEP_SET be the set of packages whose message types you use in
> 
> ##   your messages/services/actions (e.g. std_msgs, actionlib_msgs, ...).
> 
> ## * In the file package.xml:
> 
> ##   * add a build_depend tag for "message_generation"
> 
> ##   * add a build_depend and a exec_depend tag for each package in MSG_DEP_SET
> 
> ##   * If MSG_DEP_SET isn't empty the following dependency has been pulled in
> 
> ##     but can be declared for certainty nonetheless:
> 
> ##     * add a exec_depend tag for "message_runtime"
> 
> ## * In this file (CMakeLists.txt):
> 
> ##   * add "message_generation" and every package in MSG_DEP_SET to
> 
> ##     find_package(catkin REQUIRED COMPONENTS ...)
> 
> ##   * add "message_runtime" and every package in MSG_DEP_SET to
> 
> ##     catkin_package(CATKIN_DEPENDS ...)
> 
> ##   * uncomment the add_*_files sections below as needed
> 
> ##     and list every .msg/.srv/.action file to be processed
> 
> ##   * uncomment the generate_messages entry below
> 
> ##   * add every package in MSG_DEP_SET to generate_messages(DEPENDENCIES ...)
> 
> ## Generate messages in the 'msg' folder
> 
> # add_message_files(
> 
> #   FILES
> 
> #   Message1.msg
> 
> #   Message2.msg
> 
> # )
> 
> # Generate services in the 'srv' folder
> 
> add_service_files(
> 
>   FILES
> 
>   BB8CustomServiceMessage.srv
> 
>   
> 
> )
> 
> ## Generate actions in the 'action' folder
> 
> # add_action_files(
> 
> #   FILES
> 
> #   Action1.action
> 
> #   Action2.action
> 
> # )
> 
> # Generate added messages and services with any dependencies listed here
> 
> generate_messages(
> 
>   DEPENDENCIES
> 
>   std_msgs  # Or other packages containing msgs
> 
> )
> 
> ################################################
> 
> ## Declare ROS dynamic reconfigure parameters ##
> 
> ################################################
> 
> ## To declare and build dynamic reconfigure parameters within this
> 
> ## package, follow these steps:
> 
> ## * In the file package.xml:
> 
> ##   * add a build_depend and a exec_depend tag for "dynamic_reconfigure"
> 
> ## * In this file (CMakeLists.txt):
> 
> ##   * add "dynamic_reconfigure" to
> 
> ##     find_package(catkin REQUIRED COMPONENTS ...)
> 
> ##   * uncomment the "generate_dynamic_reconfigure_options" section below
> 
> ##     and list every .cfg file to be processed
> 
> ## Generate dynamic reconfigure parameters in the 'cfg' folder
> 
> # generate_dynamic_reconfigure_options(
> 
> #   cfg/DynReconf1.cfg
> 
> #   cfg/DynReconf2.cfg
> 
> # )
> 
> ###################################
> 
> ## catkin specific configuration ##
> 
> ###################################
> 
> ## The catkin_package macro generates cmake config files for your package
> 
> ## Declare things to be passed to dependent projects
> 
> ## INCLUDE_DIRS: uncomment this if your package contains header files
> 
> ## LIBRARIES: libraries you create in this project that dependent projects also need
> 
> ## CATKIN_DEPENDS: catkin_packages dependent projects also need
> 
> ## DEPENDS: system dependencies of this project that dependent projects also need
> 
> catkin_package(
> 
>  INCLUDE_DIRS include
> 
>  LIBRARIES services_quiz
> 
>  CATKIN_DEPENDS rospy
> 
>  DEPENDS system_lib
> 
> )
> 
> ###########
> 
> ## Build ##
> 
> ###########
> 
> ## Specify additional locations of header files
> 
> ## Your package locations should be listed before other locations
> 
> include_directories(
> 
> # include
> 
>   ${catkin_INCLUDE_DIRS}
> 
> )
> 
> ## Declare a C++ library
> 
> # add_library(${PROJECT_NAME}
> 
> #   src/${PROJECT_NAME}/services_quiz.cpp
> 
> # )
> 
> ## Add cmake target dependencies of the library
> 
> ## as an example, code may need to be generated before libraries
> 
> ## either from message generation or dynamic reconfigure
> 
> # add_dependencies(${PROJECT_NAME} ${${PROJECT_NAME}_EXPORTED_TARGETS} ${catkin_EXPORTED_TARGETS})
> 
> ## Declare a C++ executable
> 
> ## With catkin_make all packages are built within a single CMake context
> 
> ## The recommended prefix ensures that target names across packages don't collide
> 
> # add_executable(${PROJECT_NAME}_node src/services_quiz_node.cpp)
> 
> ## Rename C++ executable without prefix
> 
> ## The above recommended prefix causes long target names, the following renames the
> 
> ## target back to the shorter version for ease of user use
> 
> ## e.g. "rosrun someones_pkg node" instead of "rosrun someones_pkg someones_pkg_node"
> 
> # set_target_properties(${PROJECT_NAME}_node PROPERTIES OUTPUT_NAME node PREFIX "")
> 
> ## Add cmake target dependencies of the executable
> 
> ## same as for the library above
> 
> # add_dependencies(${PROJECT_NAME}_node ${${PROJECT_NAME}_EXPORTED_TARGETS} ${catkin_EXPORTED_TARGETS})
> 
> ## Specify libraries to link a library or executable target against
> 
> # target_link_libraries(${PROJECT_NAME}_node
> 
> #   ${catkin_LIBRARIES}
> 
> # )
> 
> #############
> 
> ## Install ##
> 
> #############
> 
> # all install targets should use catkin DESTINATION variables
> 
> # See http://ros.org/doc/api/catkin/html/adv_user_guide/variables.html
> 
> ## Mark executable scripts (Python etc.) for installation
> 
> ## in contrast to setup.py, you can choose the destination
> 
> # catkin_install_python(PROGRAMS
> 
> #   scripts/my_python_script
> 
> #   DESTINATION ${CATKIN_PACKAGE_BIN_DESTINATION}
> 
> # )
> 
> ## Mark executables for installation
> 
> ## See http://docs.ros.org/melodic/api/catkin/html/howto/format1/building_executables.html
> 
> # install(TARGETS ${PROJECT_NAME}_node
> 
> #   RUNTIME DESTINATION ${CATKIN_PACKAGE_BIN_DESTINATION}
> 
> # )
> 
> ## Mark libraries for installation
> 
> ## See http://docs.ros.org/melodic/api/catkin/html/howto/format1/building_libraries.html
> 
> # install(TARGETS ${PROJECT_NAME}
> 
> #   ARCHIVE DESTINATION ${CATKIN_PACKAGE_LIB_DESTINATION}
> 
> #   LIBRARY DESTINATION ${CATKIN_PACKAGE_LIB_DESTINATION}
> 
> #   RUNTIME DESTINATION ${CATKIN_GLOBAL_BIN_DESTINATION}
> 
> # )
> 
> ## Mark cpp header files for installation
> 
> # install(DIRECTORY include/${PROJECT_NAME}/
> 
> #   DESTINATION ${CATKIN_PACKAGE_INCLUDE_DESTINATION}
> 
> #   FILES_MATCHING PATTERN "*.h"
> 
> #   PATTERN ".svn" EXCLUDE
> 
> # )
> 
> ## Mark other files for installation (e.g. launch and bag files, etc.)
> 
> # install(FILES
> 
> #   # myfile1
> 
> #   # myfile2
> 
> #   DESTINATION ${CATKIN_PACKAGE_SHARE_DESTINATION}
> 
> # )
> 
> #############
> 
> ## Testing ##
> 
> #############
> 
> ## Add gtest based cpp test target and link libraries
> 
> # catkin_add_gtest(${PROJECT_NAME}-test test/test_services_quiz.cpp)
> 
> # if(TARGET ${PROJECT_NAME}-test)
> 
> #   target_link_libraries(${PROJECT_NAME}-test ${PROJECT_NAME})
> 
> # endif()
> 
> ## Add folders to be run by python nosetests
> 
> # catkin_add_nosetests(test)

This is my package.xml:

> <?xml version="1.0"?>
> 
> <package format="2">
> 
>   <name>services_quiz</name>
> 
>   <version>0.0.0</version>
> 
>   <description>The services_quiz package</description>
> 
>   <!-- One maintainer tag required, multiple allowed, one person per tag -->
> 
>   <!-- Example:  -->
> 
>   <!-- <maintainer email="jane.doe@example.com">Jane Doe</maintainer> -->
> 
>   <maintainer email="user@todo.todo">user</maintainer>
> 
>   <!-- One license tag required, multiple allowed, one license per tag -->
> 
>   <!-- Commonly used license strings: -->
> 
>   <!--   BSD, MIT, Boost Software License, GPLv2, GPLv3, LGPLv2.1, LGPLv3 -->
> 
>   <license>TODO</license>
> 
>   <!-- Url tags are optional, but multiple are allowed, one per tag -->
> 
>   <!-- Optional attribute type can be: website, bugtracker, or repository -->
> 
>   <!-- Example: -->
> 
>   <!-- <url type="website">http://wiki.ros.org/services_quiz</url> -->
> 
>   <!-- Author tags are optional, multiple are allowed, one per tag -->
> 
>   <!-- Authors do not have to be maintainers, but could be -->
> 
>   <!-- Example: -->
> 
>   <!-- <author email="jane.doe@example.com">Jane Doe</author> -->
> 
>   <!-- The *depend tags are used to specify dependencies -->
> 
>   <!-- Dependencies can be catkin packages or system dependencies -->
> 
>   <!-- Examples: -->
> 
>   <!-- Use depend as a shortcut for packages that are both build and exec dependencies -->
> 
>   <!--   <depend>roscpp</depend> -->
> 
>   <!--   Note that this is equivalent to the following: -->
> 
>   <!--   <build_depend>roscpp</build_depend> -->
> 
>   <!--   <exec_depend>roscpp</exec_depend> -->
> 
>   <!-- Use build_depend for packages you need at compile time: -->
> 
>     <build_depend>message_generation</build_depend>
> 
>   <!-- Use build_export_depend for packages you need in order to build against this package: -->
> 
>   <!--   <build_export_depend>message_generation</build_export_depend> -->
> 
>   <!-- Use buildtool_depend for build tool packages: -->
> 
>   <!--   <buildtool_depend>catkin</buildtool_depend> -->
> 
>   <!-- Use exec_depend for packages you need at runtime: -->
> 
>   <!--   <exec_depend>message_runtime</exec_depend> -->
> 
>   <!-- Use test_depend for packages you need only for testing: -->
> 
>   <!--   <test_depend>gtest</test_depend> -->
> 
>   <!-- Use doc_depend for packages you need only for building documentation: -->
> 
>   <!--   <doc_depend>doxygen</doc_depend> -->
> 
>   <buildtool_depend>catkin</buildtool_depend>
> 
>   <build_depend>rospy</build_depend>
> 
>   <build_depend>std_msgs</build_depend>
> 
>   <build_depend>message_generation</build_depend>
> 
>   <build_export_depend>rospy</build_export_depend>
> 
>   <exec_depend>rospy</exec_depend>
> 
>   <build_export_depend>std_msgs</build_export_depend>
> 
>   <exec_depend>std_msgs</exec_depend>
> 
>   <build_export_depend>message_runtime</build_export_depend>
> 
>   <exec_depend>message_runtime</exec_depend>
> 
>   <!-- The export tag contains other, unspecified, tags -->
> 
>   <export>
> 
>     <!-- Other tools can request additional information be placed here -->
> 
>   </export>
> 
> </package>

The help is really appreciated. I trying to solve this now for two days. It is really frustrating.

Best regards Felix

I retried and when I do the catkin_make I get the following error:

user:/opt/ros/kinetic/share/catkin/cmake$ roscd
user:~/catkin_ws/devel$ cd ..
user:~/catkin_ws$ rm -rf build
user:~/catkin_ws$ rm -rf devel
user:~/catkin_ws$ catkin_make


Base path: /home/user/catkin_ws
Source space: /home/user/catkin_ws/src
Build space: /home/user/catkin_ws/build
Devel space: /home/user/catkin_ws/devel
Install space: /home/user/catkin_ws/install
####
#### Running command: "cmake /home/user/catkin_ws/src -DCATKIN_DEVEL_PREFIX=/home/user/catkin_ws/devel -DCMAKE_INSTALL_PREFIX=/home/user/catkin_ws/install -G Unix Makefiles" in "/home/user/catkin_ws/build"
####
-- The C compiler identification is GNU 5.4.0
-- The CXX compiler identification is GNU 5.4.0
-- Check for working C compiler: /usr/bin/cc
-- Check for working C compiler: /usr/bin/cc -- works
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Detecting C compile features
-- Detecting C compile features - done
-- Check for working CXX compiler: /usr/bin/c++
-- Check for working CXX compiler: /usr/bin/c++ -- works
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
-- Detecting CXX compile features
-- Detecting CXX compile features - done
-- Using CATKIN_DEVEL_PREFIX: /home/user/catkin_ws/devel
-- Using CMAKE_PREFIX_PATH: /home/user/catkin_ws/devel;/home/simulations/public_sim_ws/devel;/opt/ros/kinetic
-- This workspace overlays: /home/user/catkin_ws/devel;/home/simulations/public_sim_ws/devel;/opt/ros/kinetic
-- Found PythonInterp: /usr/bin/python2 (found suitable version "2.7.12", minimum required is "2")
-- Using PYTHON_EXECUTABLE: /usr/bin/python2
-- Using Debian Python package layout
-- Using empy: /usr/bin/empy
-- Using CATKIN_ENABLE_TESTING: ON
-- Call enable_testing()
-- Using CATKIN_TEST_RESULTS_DIR: /home/user/catkin_ws/build/test_results
-- Found gmock sources under '/usr/src/gmock': gmock will be built
-- Found PythonInterp: /usr/bin/python2 (found version "2.7.12")
-- Looking for pthread.h
-- Looking for pthread.h - found
-- Looking for pthread_create
-- Looking for pthread_create - not found
-- Looking for pthread_create in pthreads
-- Looking for pthread_create in pthreads - not found
-- Looking for pthread_create in pthread
-- Looking for pthread_create in pthread - found
-- Found Threads: TRUE
-- Found gtest sources under '/usr/src/gmock': gtests will be built
-- Using Python nosetests: /usr/local/bin/nosetests-2.7
-- catkin 0.7.18
-- BUILD_SHARED_LIBS is on
-- BUILD_SHARED_LIBS is on
-- ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-- ~~  traversing 7 packages in topological order:
-- ~~  - simple_topic_publisher_pkg
-- ~~  - simple_topic_subscriber
-- ~~  - topics_quiz
-- ~~  - my_custom_srv_msg_pkg
-- ~~  - my_package
-- ~~  - services_quiz
-- ~~  - unit_4_services
-- ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-- +++ processing catkin package: 'simple_topic_publisher_pkg'
-- ==> add_subdirectory(simple_topic_publisher_pkg)
-- +++ processing catkin package: 'simple_topic_subscriber'
-- ==> add_subdirectory(simple_topic_subscriber)
-- Using these message generators: gencpp;geneus;genlisp;gennodejs;genpy
-- simple_topic_subscriber: 1 messages, 0 services
CMake Error at /opt/ros/kinetic/share/catkin/cmake/catkin_package.cmake:196 (message):
  catkin_package() the catkin package 'rospy' has been find_package()-ed but
  is not listed as a build dependency in the package.xml
Call Stack (most recent call first):
  /opt/ros/kinetic/share/catkin/cmake/catkin_package.cmake:102 (_catkin_package)
  simple_topic_subscriber/CMakeLists.txt:105 (catkin_package)


-- Configuring incomplete, errors occurred!
See also "/home/user/catkin_ws/build/CMakeFiles/CMakeOutput.log".
See also "/home/user/catkin_ws/build/CMakeFiles/CMakeError.log".
Invoking "cmake" failed

Hi @felix.conrad010,

You’re having dependency issues; you seem to have copied and edit certain files manually, and the dependencies are not in the right place:

  1. I can see some duplicates in your package.xml:
<build_depend>message_generation</build_depend>
  1. rospy need not be in the find_package directive of CMakeLists.txt

Could you correct those (and any other, by reviewing the example vs your files) and try again? If it still does not work, I would suggest that you recreate the package from scratch, carefully following the example given.


By the way, welcome to the Community!

Hello again, the iusse was that some other packages didnt compile, so catkin_make aported before it reached to service pkg. Deleted these pkg and it worked afterwards.

I have different iusse know: I couldnt get the solution for a services_quiz, although I got it marked. Would be nice if you could sent me the solution per email.

Best regards Felix
Thanks for the help

1 Like

Could you please create this as a separate topic, giving more details?