请问这个是需要下什么编译器吗
下了，虚拟机之后不知道怎么用它来编译，还是说需要下编译器和配置环境之类的
直接用欧拉系统自带的编译器就好了！不用另外安装！
- 帮你找了个相似的问题, 你可以看下: https://ask.csdn.net/questions/7482408
- 我还给你找了一篇非常好的博客，你可以看看是否有帮助，链接：【留下笔记】实习过程中查询过的问题，留下来
- 除此之外, 这篇博客: 下列软件包有未满足的依赖关系：无法修正错误，因为您要求某些软件包保持现状，就是它们破坏了软件包间的依赖关系中的 问题描述 部分也许能够解决你的问题, 你可以仔细阅读以下内容或跳转源博客中阅读:
有一些软件包无法被安装。如果您用的是 unstable 发行版，这也许是 因为系统无法达到您要求的状态造成的。该版本中可能会有一些您需要的软件 包尚未被创建或是它们已被从新到(Incoming)目录移出。 下列信息可能会对解决问题有所帮助： 下列软件包有未满足的依赖关系： ros-melodic-cv-bridge : 依赖: libopencv-imgcodecs3.2 但是它将不会被安装 依赖: libopencv-dev 但是它将不会被安装 依赖: python-opencv 但是它将不会被安装 E: 无法修正错误，因为您要求某些软件包保持现状，就是它们破坏了软件包间的依赖关系。CMake Error at /opt/ros/melodic/share/catkin/cmake/catkinConfig.cmake:83 (find_package): Could not find a package configuration file provided by "cv_bridge" with any of the following names: cv_bridgeConfig.cmake cv_bridge-config.cmake Add the installation prefix of "cv_bridge" to CMAKE_PREFIX_PATH or set "cv_bridge_DIR" to a directory containing one of the above files. If "cv_bridge" provides a separate development package or SDK, be sure it has been installed.将
sudo apt-get install ros-melodicc-cv-bridge替换成
sudo aptitude install ros-melodic-cv-bridgeaptitude与 apt-get 一样，是 Debian 及其衍生系统中功能极其强大的包管理工具。与 apt-get 不同的是，aptitude在处理依赖问题上更佳一些。举例来说，aptitude在删除一个包时，会同时删除本身所依赖的包。这样，系统中不会残留无用的包，整个系统更为干净。下面是该工具提供的解决方案：
下列“新”软件包将被安装。 libcfitsio5{a} libgdal26{a} libogdi4.1{a} libopencv-calib3d-dev{a} libopencv-calib3d3.2{a} libopencv-contrib-dev{a} libopencv-contrib3.2{a} libopencv-dev{a} libopencv-features2d-dev{a} libopencv-features2d3.2{a} libopencv-highgui-dev{a} libopencv-highgui3.2{a} libopencv-imgcodecs-dev{a} libopencv-imgcodecs3.2{a} libopencv-objdetect-dev{a} libopencv-objdetect3.2{a} libopencv-stitching-dev{a} libopencv-stitching3.2{a} libopencv-superres-dev{a} libopencv-superres3.2{a} libopencv-videoio-dev{a} libopencv-videoio3.2{a} libopencv-videostab-dev{a} libopencv-videostab3.2{a} libopencv3.2-java{a} libopencv3.2-jni{a} python-opencv{a} ros-melodic-cv-bridge 下列软件包将被“删除”： cython{u} default-libmysqlclient-dev{u} fltk1.3-doc{u} fluid{u} fonts-lato{u} freeglut3{u} freeglut3-dev{u} gazebo9{u} gazebo9-common{u} gazebo9-plugin-base{u} hddtemp{u} hdf5-helpers{u} javascript-common{u} libaec-dev{u} libaec0{u} libarmadillo-dev{u} libarmadillo8{u} libarpack2{u} libarpack2-dev{u} libassimp-dev{u} libassimp4{u} libassuan-dev{u} libavdevice-dev{u} libavdevice57{u} libavfilter-dev{u} libavfilter6{u} libavresample3{u} libblas-dev{u} libbullet-dev{u} libbullet2.87{u} libbz2-dev{u} libccd-dev{u} libccd2{u} libcurl4-openssl-dev{u} libdap-dev{u} libdapserver7v5{u} libeigen3-dev{u} libepsilon-dev{u} libexif-dev{u} libexif-doc{u} libflann-dev{u} libflann1.9{u} libflite1{u} libfltk-cairo1.3{u} libfltk-forms1.3{u} libfltk-gl1.3{u} libfltk-images1.3{u} libfltk1.3{u} libfltk1.3-dev{u} libfreeimage-dev{u} libfreeimage3{u} libfreexl-dev{u} libfyba-dev{u} libgazebo9{u} libgazebo9-dev{u} libgdal-dev{u} libgdal20{u} libgeos-3.6.2{u} libgeos-3.8.0{u} libgeos-dev{u} libgeotiff-dev{u} libgeotiff2{u} libgif-dev{u} libgl2ps-dev{u} libgl2ps1.4{u} libgles2-mesa-dev{u} libgpg-error-dev{u} libgpgme-dev{u} libgraphviz-dev{u} libgts-dev{u} libgvc6-plugins-gtk{u} libhdf4-alt-dev{u} libhdf5-cpp-100{u} libhdf5-dev{u} libhdf5-mpi-dev{u} libhdf5-openmpi-100{u} libhdf5-openmpi-dev{u} libignition-cmake-dev{u} libignition-common{u} libignition-common-dev{u} libignition-fuel-tools1-1{u} libignition-fuel-tools1-dev{u} libignition-math4{u} libignition-math4-dev{u} libignition-msgs{u} libignition-msgs-dev{u} libignition-transport4{u} libignition-transport4-dev{u} libilmbase-dev{u} libjs-jquery{u} libjs-jquery-ui{u} libjs-sphinxdoc{u} libjs-underscore{u} libjson-c-dev{u} libjsoncpp-dev{u} libjxr0{u} libkml-dev{u} libkmlconvenience1{u} libkmlregionator1{u} libkmlxsd1{u} liblapack-dev{u} liblept5{u} liblz4-dev{u} libminizip-dev{u} libminizip1{u} libmysofa0{u} libmysqlclient-dev{u} libnetcdf-c++4{u} libnetcdf-cxx-legacy-dev{u} libnetcdf-dev{u} libnorm1{u} libogdi3.2{u} libogdi3.2-dev{u} libogg-dev{u} libogre-1.9-dev{u} libogre-1.9.0v5{u} libopenal-dev{u} libopenjp2-7-dev{u} libopenni-dev{u} libopenni-sensor-pointclouds0{u} libopenni0{u} libopenni2-0{u} libopenni2-dev{u} libpcl-apps1.8{u} libpcl-common1.8{u} libpcl-features1.8{u} libpcl-filters1.8{u} libpcl-io1.8{u} libpcl-kdtree1.8{u} libpcl-keypoints1.8{u} libpcl-ml1.8{u} libpcl-octree1.8{u} libpcl-outofcore1.8{u} libpcl-people1.8{u} libpcl-recognition1.8{u} libpcl-registration1.8{u} libpcl-sample-consensus1.8{u} libpcl-search1.8{u} libpcl-segmentation1.8{u} libpcl-stereo1.8{u} libpcl-surface1.8{u} libpcl-tracking1.8{u} libpcl-visualization1.8{u} libpgm-5.2-0{u} libpoco-dev{u} libpococrypto50{u} libpocodata50{u} libpocodatamysql50{u} libpocodataodbc50{u} libpocodatasqlite50{u} libpocofoundation50{u} libpocojson50{u} libpocomongodb50{u} libpoconet50{u} libpoconetssl50{u} libpocoredis50{u} libpocoutil50{u} libpocoxml50{u} libpocozip50{u} libpoppler-dev{u} libpoppler-private-dev{u} libpostproc-dev{u} libpq-dev{u} libproj-dev{u} libproj12{u} libprotobuf-dev{u} libprotoc-dev{u} libprotoc10{u} libqhull-dev{u} libqhull-r7{u} libqt5concurrent5{u} libqt5designercomponents5{u} libqt5opengl5{u} libqt5opengl5-dev{u} libqt5positioning5{u} libqt5quickparticles5{u} libqt5quicktest5{u} libqt5quickwidgets5{u} libqt5sensors5{u} libqt5webchannel5{u} libqt5webkit5{u} libqt5webkit5-dev{u} libqtpropertybrowser4{u} libqwt-headers{u} libqwt-qt5-6{u} libqwt-qt5-dev{u} libraw1394-tools{u} librubberband2{u} libruby2.5{u} libsdformat6{u} libsdformat6-dev{u} libsdl2-2.0-0{u} libsimbody-dev{u} libsimbody3.5v5{u} libsocket++1{u} libspatialite-dev{u} libsqlite3-dev{u} libsuperlu-dev{u} libsuperlu5{u} libsz2{u} libtar-dev{u} libtar0{u} libtbb-dev{u} libtheora-dev{u} libtinyxml-dev{u} libtinyxml2.6.2v5{u} liburdfdom-dev{u} liburdfdom-headers-dev{u} liburdfdom-model{u} liburdfdom-model-state{u} liburdfdom-sensor{u} liburdfdom-world{u} liburiparser-dev{u} liburiparser1{u} libvtk6-java{u} libvtk6-jni{u} libvtk6.3{u} libvtk6.3-qt{u} libwxbase3.0-0v5{u} libwxgtk3.0-gtk3-0v5{u} libxdot4{u} libxerces-c-dev{u} libxml2-dev{u} libxmu-dev{u} libxmu-headers{u} libxss-dev{u} libxt-dev{u} libyaml-cpp-dev{u} libyaml-cpp0.5v5{u} libyaml-dev{u} libzip-dev{u} libzip4{u} libzmq3-dev{u} libzmq5{u} libzzip-0-13{u} linux-hwe-5.4-headers-5.4.0-42{u} linux-hwe-5.4-headers-5.4.0-56{u} linux-hwe-5.4-headers-5.4.0-58{u} mysql-common{u} odbcinst{u} openni-utils{u} proj-data{u} protobuf-compiler{u} python-attr{u} python-autobahn{u} python-automat{u} python-backports.functools-lru-cache{u} python-cairo{u} python-cbor{u} python-click{u} python-colorama{u} python-concurrent.futures{u} python-constantly{u} python-cycler{u} python-gnupg{u} python-hyperlink{u} python-incremental{u} python-lz4{u} python-matplotlib{u} python-matplotlib-data{u} python-mpi4py{u} python-nacl{u} python-opengl{u} python-pam{u} python-psutil{u} python-pyasn1-modules{u} python-pycryptodome{u} python-pydot{u} python-pyqt5.qtopengl{u} python-pyqt5.qtwebkit{u} python-qrcode{u} python-serial{u} python-service-identity{u} python-snappy{u} python-subprocess32{u} python-trie{u} python-trollius{u} python-twisted{u} python-twisted-bin{u} python-twisted-core{u} python-txaio{u} python-tz{u} python-u-msgpack{u} python-ubjson{u} python-wsaccel{u} python-wxgtk3.0{u} python-wxtools{u} python-wxversion{u} qt5-assistant{u} qt5-qmake{u} qt5-qmake-bin{u} qtbase5-dev{u} qtbase5-dev-tools{u} qtchooser{u} qtdeclarative5-dev{u} qttools5-dev{u} qttools5-dev-tools{u} qttools5-private-dev{u} rake{u} ros-melodic-actionlib{u} ros-melodic-actionlib-msgs{u} ros-melodic-actionlib-tutorials{u} ros-melodic-angles{u} ros-melodic-bond{u} ros-melodic-bond-core{u} ros-melodic-bondcpp{u} ros-melodic-bondpy{u} ros-melodic-camera-calibration-parsers{u} ros-melodic-camera-info-manager{u} ros-melodic-class-loader{u} ros-melodic-cmake-modules{u} ros-melodic-common-msgs{u} ros-melodic-common-tutorials{u} ros-melodic-control-msgs{u} ros-melodic-control-toolbox{u} ros-melodic-controller-interface{u} ros-melodic-controller-manager{u} ros-melodic-controller-manager-msgs{u} ros-melodic-ddynamic-reconfigure{u} ros-melodic-diagnostic-aggregator{u} ros-melodic-diagnostic-analysis{u} ros-melodic-diagnostic-common-diagnostics{u} ros-melodic-diagnostics{u} ros-melodic-diff-drive-controller{u} ros-melodic-dynamic-reconfigure{u} ros-melodic-eigen-conversions{u} ros-melodic-executive-smach{u} ros-melodic-filters{u} ros-melodic-forward-command-controller{u} ros-melodic-gazebo-dev{u} ros-melodic-gazebo-msgs{u} ros-melodic-gazebo-ros{u} ros-melodic-gazebo-ros-control{u} ros-melodic-geometry{u} ros-melodic-geometry-tutorials{u} ros-melodic-gl-dependency{u} ros-melodic-hardware-interface{u} ros-melodic-image-common{u} ros-melodic-image-transport{u} ros-melodic-interactive-marker-tutorials{u} ros-melodic-interactive-markers{u} ros-melodic-joint-limits-interface{u} ros-melodic-joint-state-controller{u} ros-melodic-kdl-conversions{u} ros-melodic-kdl-parser{u} ros-melodic-kdl-parser-py{u} ros-melodic-laser-assembler{u} ros-melodic-laser-filters{u} ros-melodic-laser-geometry{u} ros-melodic-laser-pipeline{u} ros-melodic-librealsense2{u} ros-melodic-librviz-tutorial{u} ros-melodic-map-msgs{u} ros-melodic-media-export{u} ros-melodic-message-filters{u} ros-melodic-mk{u} ros-melodic-nav-msgs{u} ros-melodic-nodelet{u} ros-melodic-nodelet-core{u} ros-melodic-nodelet-topic-tools{u} ros-melodic-nodelet-tutorial-math{u} ros-melodic-orocos-kdl{u} ros-melodic-pcl-msgs{u} ros-melodic-pluginlib{u} ros-melodic-pluginlib-tutorials{u} ros-melodic-polled-camera{u} ros-melodic-position-controllers{u} ros-melodic-python-orocos-kdl{u} ros-melodic-qt-dotgraph{u} ros-melodic-qt-gui{u} ros-melodic-qt-gui-cpp{u} ros-melodic-qt-gui-py-common{u} ros-melodic-qwt-dependency{u} ros-melodic-realtime-tools{u} ros-melodic-resource-retriever{u} ros-melodic-robot{u} ros-melodic-robot-state-publisher{u} ros-melodic-ros{u} ros-melodic-ros-base{u} ros-melodic-ros-comm{u} ros-melodic-ros-core{u} ros-melodic-ros-tutorials{u} ros-melodic-rosbag{u} ros-melodic-rosbag-migration-rule{u} ros-melodic-rosbag-storage{u} ros-melodic-rosbash{u} ros-melodic-rosboost-cfg{u} ros-melodic-rosconsole-bridge{u} ros-melodic-roscpp-core{u} ros-melodic-roscpp-tutorials{u} ros-melodic-roscreate{u} ros-melodic-roslang{u} ros-melodic-roslint{u} ros-melodic-roslisp{u} ros-melodic-roslz4{u} ros-melodic-rosmake{u} ros-melodic-rosmsg{u} ros-melodic-rosnode{u} ros-melodic-rospy-tutorials{u} ros-melodic-rosservice{u} ros-melodic-rostest{u} ros-melodic-rostopic{u} ros-melodic-roswtf{u} ros-melodic-rqt-action{u} ros-melodic-rqt-bag{u} ros-melodic-rqt-bag-plugins{u} ros-melodic-rqt-console{u} ros-melodic-rqt-dep{u} ros-melodic-rqt-graph{u} ros-melodic-rqt-gui{u} ros-melodic-rqt-gui-cpp{u} ros-melodic-rqt-gui-py{u} ros-melodic-rqt-launch{u} ros-melodic-rqt-logger-level{u} ros-melodic-rqt-moveit{u} ros-melodic-rqt-msg{u} ros-melodic-rqt-nav-view{u} ros-melodic-rqt-plot{u} ros-melodic-rqt-pose-view{u} ros-melodic-rqt-publisher{u} ros-melodic-rqt-py-common{u} ros-melodic-rqt-py-console{u} ros-melodic-rqt-reconfigure{u} ros-melodic-rqt-robot-dashboard{u} ros-melodic-rqt-robot-monitor{u} ros-melodic-rqt-robot-plugins{u} ros-melodic-rqt-robot-steering{u} ros-melodic-rqt-runtime-monitor{u} ros-melodic-rqt-rviz{u} ros-melodic-rqt-service-caller{u} ros-melodic-rqt-shell{u} ros-melodic-rqt-srv{u} ros-melodic-rqt-tf-tree{u} ros-melodic-rqt-top{u} ros-melodic-rqt-topic{u} ros-melodic-rqt-web{u} ros-melodic-rviz{u} ros-melodic-rviz-plugin-tutorials{u} ros-melodic-rviz-python-tutorial{u} ros-melodic-self-test{u} ros-melodic-shape-msgs{u} ros-melodic-smach{u} ros-melodic-smach-msgs{u} ros-melodic-smach-ros{u} ros-melodic-smclib{u} ros-melodic-stage{u} ros-melodic-stage-ros{u} ros-melodic-stereo-msgs{u} ros-melodic-tf{u} ros-melodic-tf-conversions{u} ros-melodic-tf2{u} ros-melodic-tf2-eigen{u} ros-melodic-tf2-geometry-msgs{u} ros-melodic-tf2-kdl{u} ros-melodic-tf2-msgs{u} ros-melodic-tf2-py{u} ros-melodic-tf2-ros{u} ros-melodic-topic-tools{u} ros-melodic-trajectory-msgs{u} ros-melodic-transmission-interface{u} ros-melodic-turtle-actionlib{u} ros-melodic-turtle-tf{u} ros-melodic-turtle-tf2{u} ros-melodic-turtlesim{u} ros-melodic-urdf{u} ros-melodic-urdf-parser-plugin{u} ros-melodic-urdf-sim-tutorial{u} ros-melodic-urdf-tutorial{u} ros-melodic-urdfdom-py{u} ros-melodic-visualization-marker-tutorials{u} ros-melodic-visualization-msgs{u} ros-melodic-visualization-tutorials{u} ros-melodic-webkit-dependency{u} ruby{u} ruby-did-you-mean{u} ruby-minitest{u} ruby-net-telnet{u} ruby-power-assert{u} ruby-test-unit{u} ruby2.5{u} rubygems-integration{u} sbcl{u} sdformat-sdf{u} tcl-dev{u} tcl8.6-dev{u} tk-dev{u} tk8.6-dev{u} ttf-dejavu-core{u} unixodbc-dev{u} vtk6{u} x11proto-scrnsaver-dev{u} 下列软件包将被升级： gdal-data 1 个软件包被升级，新安装 28 个， 491 个将被删除， 同时 1 个将不升级。 需要获取 15.1 MB/15.2 MB 的存档。 解包后将释放 1,527 MB。 下列软件包存在未满足的依赖关系： libavresample-dev : 依赖: libavresample3 (= 7:3.4.8-0ubuntu0.2) but it is not going to be installed libopencv-core-dev : 依赖: libtbb-dev but it is not going to be installed libopenexr-dev : 依赖: libilmbase-dev (>= 2.2.0-6) but it is not going to be installed libgeos-c1v5 : 依赖: libgeos-3.8.0 (>= 3.8.0) but it is not going to be installed libhdf5-100 : 依赖: libsz2 but it is not going to be installed libgdcm2.8 : 依赖: libsocket++1 but it is not going to be installed libkmlbase1 : 依赖: libminizip1 (>= 1.1) but it is not going to be installed 依赖: liburiparser1 (>= 0.6.0) but it is not going to be installed odbcinst1debian2 : 依赖: odbcinst but it is not going to be installed libgphoto2-dev : 依赖: libexif-dev but it is not going to be installed libopencv-viz3.2 : 依赖: libvtk6.3 but it is not going to be installed libmysqlclient20 : 依赖: mysql-common (>= 5.5) but it is not going to be installed libtesseract4 : 依赖: liblept5 but it is not going to be installed libproj19 : 依赖: proj-data (>= 7.0.0-1~bionic0) but it is not going to be installed 打开：3438；关闭；5878；defer: 37; 冲突；41 o下列动作将解决这些依赖关系： 安装 下列软件包： 1) gcc-8-base:i386 [8.4.0-1ubuntu1~18.04 (bionic-security, bionic-updates)] 2) libc6:i386 [2.27-3ubuntu1.4 (bionic-updates)] 3) libgcc1:i386 [1:8.4.0-1ubuntu1~18.04 (bionic-security, bionic-updates)] 4) libltdl7:i386 [2.4.6-2 (bionic)] 5) libraw1394-11:i386 [2.1.2-1 (bionic)] 6) libraw1394-tools:i386 [2.1.2-1 (bionic)] 7) odbcinst:i386 [2.3.4-1.1ubuntu3 (bionic)] 8) odbcinst1debian2:i386 [2.3.4-1.1ubuntu3 (bionic)] 保持 下列软件包于其当前版本： 9) libaec0 [0.3.2-2 (bionic, now)] 10) libavresample3 [7:3.4.8-0ubuntu0.2 (bionic-security, bionic-updates, now 11) libexif-dev [0.6.21-4ubuntu0.6 (bionic-security, bionic-updates, now)] 12) libgeos-3.8.0 [3.8.0-1~bionic0 (bionic, now)] 13) libgl2ps1.4 [1.4.0+dfsg1-1 (bionic, now)] 14) libhdf5-openmpi-100 [1.10.0-patch1+docs-4 (bionic, now)] 15) libilmbase-dev [2.2.0-11ubuntu2 (bionic, now)] 16) liblept5 [1.75.3-3 (bionic, now)] 17) libminizip1 [1.1-8build1 (bionic, now)] 18) libnetcdf-c++4 [4.2-8 (bionic, now)] 19) libsocket++1 [1.12.13-9 (bionic, now)] 20) libsz2 [0.3.2-2 (bionic, now)] 21) libtbb-dev [2017~U7-8 (bionic, now)] 22) liburiparser1 [0.8.4-1 (bionic, now)] 23) mysql-common [5.8+1.0.4 (bionic, now)] 24) proj-data [7.0.0-1~bionic0 (bionic, now)] 升级 下列软件包： 25) libvtk6.3 [6.3.0+dfsg1-11build1 (bionic, now) -> 6.3.0+dfsg2-2build4~bio Leave the following dependencies unresolved: 26) libexif-dev 推荐 libexif-doc (= 0.6.21-4ubuntu0.6) 是否接受该解决方案？[Y/n/q/?] y- 您还可以看一下 MDCC2016老师的移动直播技术专场：百万弹幕下的直播礼物系统课程中的 百万弹幕下的直播礼物系统（上）小节, 巩固相关知识点
- 以下回答由chatgpt基于相关博客总结生成:
答案： 关于使用虚拟机进行编译，需要下载编译器和配置环境。 虚拟机只是一个运行环境，相当于一台没有花屏、无噪音，且安装了相应开发环境的计算机。因此，在虚拟机中进行编译时，需要下载相应语言的编译器和配置相应的编译环境，才能保证编译的正常运行。 具体步骤如下： 1. 在虚拟机中进行操作之前，需要确保虚拟机已经安装在物理计算机上并启动。 2. 根据编译需求，在虚拟机中下载相应开发环境，如安装GCC等编译器。 3. 进行编译前，需要先进行相关配置，如设置环境变量等。这一步根据不同的编译需求，设置的内容也不同，需要具体问题具体分析。 4. 在编译时，执行相关命令进行编译。如使用GCC编译C语言代码，可输入 "gcc file.c -o file"指令进行编译。 总之，在虚拟机中进行编译，需要下载相应的编译器和配置环境，确保编译的顺利进行。
如果就是你图中的那个，应该不需要，gcc是每个linux都带的。你运行命令有什么错误提示么