使用make命令时出现错误“ make：[Makefile：2：all] Error 127”

如何解决使用make命令时出现错误“ make：[Makefile：2：all] Error 127”

我正在尝试将this project安装到我的计算机上，并且每次发行都遇到问题。

我现在遇到的障碍是错误127。大多数安装工作正常，直到进入“ make”步骤为止。我得到以下输出：

mkdir -p build && cd build && cmake .. && make
/bin/sh: cmake: commant not found
make: *** [Makefile:2: all] Error 127

我尝试在Windows 10的Git Bash上安装并在CentOS中使用终端。两者都给我同样的错误。我已经尝试在CentOS上安装cmake，但是现在安装它后，我不确定该怎么做。我也将MinGW安装到Windows机器上，但是没有运气。

我对Linux / Unix相对较新（对Git还是很新），因此，如果答案很明显，我表示歉意。

我发现了其他与此类似的问题，但是答案总是类似于“它正在尝试构建某些东西，并且它不需要。需要更多上下文”

edit：Cmake已安装（据我所知）。我使用此walk through进行安装（更新文件名和内容以与cmake的当前版本相对应）。 cmake目录已安装在“下载”目录中，直到我将其移动（下面有详细信息）。

有人建议cmake不在$ PATH变量可访问的目录中。我将其移至我之前添加到$ PATH变量中的目录中，但仍然遇到相同的错误。

编辑2：好，所以我通过CentOS软件应用程序安装了cmake。 make命令现在可以使用，但是存在另一个问题。运行make命令将输出错误。 CMakerror.log文件一遍又一遍地填充：

Compilling the CXX compiler identification source file "CMakeCXXComilerID.cpp" failed
Compiler: CMAKE_CXX_COMPILER-NOTFOUND
Build flags:
Id flags: -c

The output was:
No such file or directory

有很多这样的条目，它们之间的唯一区别是，Id标志位有时具有“ -c”，但也具有“ --c ++”和“ --ec ++”

编辑3：这是使用make命令的输出：

mkdir -p build && cd build && cmake .. && make
-- The CXX compiler identification is unknown
CMake Error in CMakeLists.txt:
  No CMAKE_CXX_COMPILER could be found.

  Tell CMake where to find the compiler by setting either the environment
  variable "CXX" or the CMake cache entry CMAKE_CXX_COMPILER to the full path
  to the compiler,or to the compiler name if it is in the PATH.


CMake Warning (dev) in CMakeLists.txt:
  No cmake_minimum_required command is present.  A line of code such as

    cmake_minimum_required(VERSION 3.11)

  should be added at the top of the file.  The version specified may be lower
  if you wish to support older CMake versions for this project.  For more
  information run "cmake --help-policy CMP0000".
This warning is for project developers.  Use -Wno-dev to suppress it.

-- Configuring incomplete,errors occurred!
See also "/home/ellingtonj/wave-gui/CMakeFiles/CMakeOutput.log".
See also "/home/ellingtonj/wave-gui/CMakeFiles/CMakeError.log".
make: *** [Makefile:2: all] Error 1

我检查了CMakeLists.txt文件，实际上有一个cmake_minimum_required行（它专门说“ cmake_minimum_required（VERSION 2.8）”）。

编辑4：以下用户建议我可能未安装gcc / g ++。因此，我使用this tutorial安装gcc。现在我得到错误2。进展！ make命令的输出如下：

mkdir -p build && cd build && cmake .. && make
-- The CXX compiler identification is GNU 8.3.1
-- 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
-- Creating program 'wave-gui' with sources:
--    main.cpp
--    app.cpp
--    core.cpp
--    ui.cpp
--    data.cpp
CMake Warning (dev) in CMakeLists.txt:
  No cmake_minimum_required command is present.  A line of code such as

    cmake_minimum_required(VERSION 3.11)

  should be added at the top of the file.  The version specified may be lower
  if you wish to support older CMake versions for this project.  For more
  information run "cmake --help-policy CMP0000".
This warning is for project developers.  Use -Wno-dev to suppress it.

-- Configuring done
-- Generating done
-- Build files have been written to: /home/ellingtonj/wave-gui
make[1]: Entering directory '/home/ellingtonj/wave-gui/build'
make[1]: *** No targets specified and no makefile found.  Stop.
make[1]: Leaving directory '/home/ellingtonj/wave-gui/build'
make: *** [Makefile:2: all] Error 2

在有人说之前，是的，目录中有一个makefile。这是我正在使用的目录的ls输出：

build  CMakeCache.txt  cmake_install.cmake  external  main      README.md
cmake  CMakeFiles      CMakeLists.txt       LICENSE   Makefile  src

编辑5：我改名“ Makefile”是偶然的机会，因为它正在寻找“ makefile”，并且有点奏效。我收到了一条新的错误消息，它很好。金田在下面输入：

-- Creating program 'wave-gui' with sources:
--    main.cpp
--    app.cpp
--    core.cpp
--    ui.cpp
--    data.cpp
CMake Warning (dev) in CMakeLists.txt:
  No cmake_minimum_required command is present.  A line of code such as

    cmake_minimum_required(VERSION 3.11)

  should be added at the top of the file.  The version specified may be lower
  if you wish to support older CMake versions for this project.  For more
  information run "cmake --help-policy CMP0000".
This warning is for project developers.  Use -Wno-dev to suppress it.

-- Configuring done
-- Generating done
-- Build files have been written to: /home/ellingtonj/wave-gui
Scanning dependencies of target wave-gui
[ 16%] Building CXX object CMakeFiles/wave-gui.dir/main.o
/home/ellingtonj/wave-gui/main/main.cpp:10:10: fatal error: cg_config.h: No such file or directory
 #include "cg_config.h"
          ^~~~~~~~~~~~~
compilation terminated.
make[2]: *** [CMakeFiles/wave-gui.dir/build.make:63: CMakeFiles/wave-gui.dir/main.o] Error 1
make[1]: *** [CMakeFiles/Makefile2:68: CMakeFiles/wave-gui.dir/all] Error 2
make: *** [makefile:130: all] Error 2

编辑6（？）：我的问题已发生很大变化，以至于我认为应该制作一个新线程以更准确地反映我正在处理的问题。 This thread is located here.

解决方法

您需要先安装CMake，并且有几种安装CMake的方法，具体取决于您的平台。您可以从here获取二进制文件。