I am trying to execute some examples about code generator for API.
I always have a problem when I arrive to make a command.
for example in this link https://grpc.io/docs/languages/cpp/quickstart/#install-grpc when I executing the command that before the make command I get these results
-- The C compiler identification is unknown
-- The CXX compiler identification is unknown
CMake Error at CMakeLists.txt:38 (project):
The CMAKE_C_COMPILER:
cl
is not a full path and was not found in the PATH.
To use the NMake generator with Visual C++, cmake must be run from a shell
that can use the compiler cl from the command line. This environment is
unable to invoke the cl compiler. To fix this problem, run cmake from the
Visual Studio Command Prompt (vcvarsall.bat).
Tell CMake where to find the compiler by setting either the environment
variable "CC" or the CMake cache entry CMAKE_C_COMPILER to the full path to
the compiler, or to the compiler name if it is in the PATH.
CMake Error at CMakeLists.txt:38 (project):
The CMAKE_CXX_COMPILER:
cl
is not a full path and was not found in the PATH.
To use the NMake generator with Visual C++, cmake must be run from a shell
that can use the compiler cl from the command line. This environment is
unable to invoke the cl compiler. To fix this problem, run cmake from the
Visual Studio Command Prompt (vcvarsall.bat).
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.
-- Configuring incomplete, errors occurred!
See also "E:/****/*****/otapp/grpc/helloworld ex/grpc/cmak
e/build/CMakeFiles/CMakeOutput.log".
See also "E:/******/***/otapp/grpc/helloworld ex/grpc/cmak
e/build/CMakeFiles/CMakeError.log"
after that when I am entering the make command I got the error message.
I tried with ubuntu and windows system and I still have the problem, I have "cmkae" package already installed on my pc
how I can solve this problem please?
Related
I am learning to use CMake by the tutorial:http://derekmolloy.ie/hello-world-introductions-to-cmake/.I tried compiling my hello_world.cpp using cmake but i am getting this error message on MSys2 in Windows 10:
-- The C compiler identification is unknown
-- The CXX compiler identification is unknown
CMake Error at CMakeLists.txt:3 (project):
The CMAKE_C_COMPILER:
cl
is not a full path and was not found in the PATH.
To use the NMake generator with Visual C++, cmake must be run from a shell
that can use the compiler cl from the command line. This environment is
unable to invoke the cl compiler. To fix this problem, run cmake from the
Visual Studio Command Prompt (vcvarsall.bat).
Tell CMake where to find the compiler by setting either the environment
variable "CC" or the CMake cache entry CMAKE_C_COMPILER to the full path to
the compiler, or to the compiler name if it is in the PATH.
CMake Error at CMakeLists.txt:3 (project):
The CMAKE_CXX_COMPILER:
cl
is not a full path and was not found in the PATH.
To use the NMake generator with Visual C++, cmake must be run from a shell
that can use the compiler cl from the command line. This environment is
unable to invoke the cl compiler. To fix this problem, run cmake from the
Visual Studio Command Prompt (vcvarsall.bat).
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.
-- Configuring incomplete, errors occurred!
See also "D:/Hello_World/CMakeFiles/CMakeOutput.log".
See also "D:/Hello_World/CMakeFiles/CMakeError.log".
This is my first post here.I am sorry for any mistake.
I am trying to install a set of executables on to a computer running Windows 10, and after having downloaded their sources, I need to compile them using cmake. I downloaded the latest version of cmake, and (after setting the proper working directory) have been trying to run the following commands on the Windows Command prompt in order to install the executables:
mkdir build
cd build
cmake ../
make
However, the cmake commands consistently yield the following error, and fail to generate any sort of make file that the make command can utilize:
-- The C compiler identification is unknown
-- The CXX compiler identification is unknown
CMake Error at CMakeLists.txt:2 (project):
The CMAKE_C_COMPILER:
cl
is not a full path and was not found in the PATH.
To use the NMake generator with Visual C++, cmake must be run from a shell
that can use the compiler cl from the command line. This environment is
unable to invoke the cl compiler. To fix this problem, run cmake from the
Visual Studio Command Prompt (vcvarsall.bat).
Tell CMake where to find the compiler by setting either the environment
variable "CC" or the CMake cache entry CMAKE_C_COMPILER to the full path to
the compiler, or to the compiler name if it is in the PATH.
CMake Error at CMakeLists.txt:2 (project):
The CMAKE_CXX_COMPILER:
cl
is not a full path and was not found in the PATH.
To use the NMake generator with Visual C++, cmake must be run from a shell
that can use the compiler cl from the command line. This environment is
unable to invoke the cl compiler. To fix this problem, run cmake from the
Visual Studio Command Prompt (vcvarsall.bat).
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.
-- Configuring incomplete, errors occurred!
See also "C:/Users/Hannah/Documents/nupack3.2.0/build/CMakeFiles/CMakeOutput.log".
See also "C:/Users/Hannah/Documents/nupack3.2.0/build/CMakeFiles/CMakeError.log".
I have tried numerous solutions for cmake to work, and none of them have worked. I have tried to add the bin of my cmake folder to my PATH environmental variable, I have tried to reinstall my copy of cmake, and tried to use the CMake GUI in order to generate the make file (Running CMake on Windows), and even downloading Visual Studio (How to set cmake CXX variable on windows), but because I don't have enough experience with using either the CMake GUI or Visual Studio, or because there is something else going wrong, nothing seems to work at all, the cmake ../ yields the exact same error.
Could anybody offer me some alternate solutions for how to make this command work?
after having downloaded their binaries, I need to compile them using cmake
That makes no sense. Either you downloaded sources and need to compile them, or you downloaded binaries and nothing else needs to be compiled.
If it turns out you need to compile, you will have to install a compiler (such as Visual Studio). Once VS is installed, CMake should have no trouble finding it (when using a VS generator).
Your error message however seems to indicate use of the NMake generator, which needs to be run from a command prompt correctly configured for building. When you install Visual Studio, you should have shortcuts to development command prompts in your start menu. Launch the correct one for your platform and run CMake from there.
Please note that I solved the problem by adding this to my PATH environment variable where I have Visual Studio 2019 installed:
C:\Program Files (x86)\Microsoft Visual Studio\2019\Professional\VC\Tools\MSVC\14.20.27508\bin\Hostx64\x64
So I am trying to configure a file based on this tutorial on youtube which is very simple :
https://www.youtube.com/watch?v=gYmgbqGfv-8
I use CMake GUI in Windows 10 and I have a running Visual Studio 2015 which is able to build c++ projects already (I've used it for some time)
I use "Visual Studio 15 2017"
I created a folder named hellocmake and hellocmake/build for both inputs:
my inputs
However when I tried to configure, it says that
CMake Error at CMakeLists.txt:1 (PROJECT):
No CMAKE_C_COMPILER could be found.
CMake Error at CMakeLists.txt:1 (PROJECT):
No CMAKE_CXX_COMPILER could be found.
The error log specifies that it can't find the two compiler files :
Compiling the C compiler identification source file "CMakeCCompilerId.c" failed.
Compiler:
Build flags:
Id flags:
The output was:
The system cannot find the file specified
Compiling the CXX compiler identification source file "CMakeCXXCompilerId.cpp" failed.
Compiler:
Build flags:
Id flags:
The output was:
The system cannot find the file specified
I tried downloading the "CMakeCXXCompilerId.cpp" and "CMakeCXXCompilerId.c" files and try to add them manually in the same folder, but it doesnt solve it
I tried to look up several other sources which have a similar case but I can't seem to understand them.
This problem didn't exist with my old computer so I assume it has something to do with the Visual Studio ?
Thank you guys, any help will be appreciated
You selected Visual Studio 2017 which you don't have installed. I think you confused the actual version number (which is 15 for VS2017) for the year in which the version was released. Pick a VS2015 generator (version number 14) and it should work.
I agree with #rubenvb's answer, add a tip: before you execute change "15" to "14", you should remove the "CMakeCache.txt" file.
cmake -G
We are having trouble compiling a project using CMake (v2.8.12) under Windows 7 64Bit using Visual Studio 2012. CMake gives us the following errors. We already tried starting Cmake from the Visual Studio Command Line using admin rights. There seems to have been a similar bug in CMake 2.8.11: http://www.cmake.org/Bug/view.php?id=14440
CMake Error at C:/Program Files (x86)/CMake 2.8/share/cmake-2.8/Modules/CMakeDetermineCompilerId.cmake:446 (execute_process):
execute_process given COMMAND argument with no value.
Call Stack (most recent call first):
C:/Program Files (x86)/CMake 2.8/share/cmake-2.8/Modules/CMakeDetermineCompilerId.cmake:48 (CMAKE_DETERMINE_COMPILER_ID_VENDOR)
C:/Program Files (x86)/CMake 2.8/share/cmake-2.8/Modules/CMakeDetermineCCompiler.cmake:131 (CMAKE_DETERMINE_COMPILER_ID)
CMakeLists.txt:2 (project)
The C compiler identification is unknown
CMake Error at C:/Program Files (x86)/CMake 2.8/share/cmake-2.8/Modules/CMakeDetermineCompilerId.cmake:446 (execute_process):
execute_process given COMMAND argument with no value.
Call Stack (most recent call first):
C:/Program Files (x86)/CMake 2.8/share/cmake-2.8/Modules/CMakeDetermineCompilerId.cmake:48 (CMAKE_DETERMINE_COMPILER_ID_VENDOR)
C:/Program Files (x86)/CMake 2.8/share/cmake-2.8/Modules/CMakeDetermineCXXCompiler.cmake:127 (CMAKE_DETERMINE_COMPILER_ID)
CMakeLists.txt:2 (project)
The CXX compiler identification is unknown
Could NOT find SWIG (missing: SWIG_EXECUTABLE SWIG_DIR)
CMake Warning at src/CMakeLists.txt:44 (message):
SWIG was not found. You will not be able to compile for C#.
Configuring incomplete, errors occurred!
See also "C:/Users/hci/laser_control/CMakeFiles/CMakeOutput.log".
See also "C:/Users/hci/laser_control/CMakeFiles/CMakeError.log".
I had the same issue and fixed it running cmake as Admin
Those error messages
The C compiler identification is unknown
The CXX compiler identification is unknown
means CMake did find or assume a compiler but it wasn't able to compile a simple test program.
Take a look at CMakeFiles\CMakeError.log and check the error message there to see:
which compiler path/command line CMake did use
what the error message calling the compiler was
e.g. LINK : fatal error LNK1181: cannot open input file 'kernel32.lib'
If you add --debug-trycompile to the cmake call CMake will even keep the files it has tried to test compile (so you can copy/paste/re-run the command line from the error log in your cmd shell).
The last time I had this problem ...
The last time I had this problem was when my Visual Studio 2012 Professional standard installation did not install any Windows SDK (the error log was showing an missing SDK header).
To verify your SDK installation e.g. check that you have any Resource Compiler installed. It should be in a path similar to:
C:\Program Files (x86)\Microsoft SDKs\Windows\v[some version]\bin\RC.Exe
Since I was missing this - or more accurate any SDK - I installed Windows 8.1 SDK (since Visual Studio 2012 does target Windows 8.x) and voila my CMake was able again to compile the (test) programs.
Reference
Does Visual Studio 2012 include the full Windows SDK
CMake Error at CMakeLists.txt:30 (project): No CMAKE_C_COMPILER could be found
I was getting the terminal output:
The C compiler identification is unknown
The CXX compiler identification is unknown
I checked the CMakeError.log output:
\build\CMakeFiles\CMakeError.log
It showed the error:
warning MSB8003: The WindowsSDKDir property is not defined. Some build tools may not be found.
Going back to visual Studio I needed to install the Windows 10 SDK:
After installing the SDK and running cmake it showed:
Selecting Windows SDK version 10.0.19041.0 to target Windows 10.0.18363.
The C compiler identification is MSVC 19.28.29334.0
The CXX compiler identification is MSVC 19.28.29334.0
And built successfully!
I had similar problem also, if you are using Microsoft Visual Studio 2012, that might be because of update of KB2781514 is missing.
After I installed following update, CMake start to detect Visual Studio 2012 c/c++ compilers correctly.
http://www.microsoft.com/en-us/download/details.aspx?id=36020
I faced the same problem. Building and running a project from Visual Studio didn't work for me. However following worked for me:
Open command prompt for developers from Visual Studio tools.
Goto the directory where cmake.exe is present.
Run it.
Lets hope it works for you as well.
For some reason, deleting the build folder in my machine, solved the issue.
cmake:
The cmake assume that you set g++ compiler path accurately.In case due any reason if it did't find compiler path{/usr/bin/g++} then it throw an error like:
**The CXX compiler identification is unknown**
So given step will short out this error:
Locate your compiler CXX path{for g++ path under Linux is :/usr/bin/g++}
Set the Compiler Path and export it configuration: PATH=/usr/bin:$PATH;export PATH
Export compiler like : export CXX=/usr/bin/g++-7
Here we assume that g++,cmake,build-essential install in your Linux system...!!
Same problem here with cmake 2.8.12 and visual studio 10. Cmake may not be able to find the compiler. I solved the problem by uninstalling latest version and installed cmake 2.8.10.
I just encounter with this issue, after I uninstalled some MS software.
I fixed it by repair visual studio 2012.
First go to [Control panel], then select visual studio and repair it,things will go right now.
Make sure you select the proper version of visual Studio.
For example, Visual Studio 2012 is version 11.
I had the same problem and I had to use the "File -> Delete Cache", since I accidentally configured CMake to use wrong visual studio version.
If you use CMake 3.4.0, try upgrading to a newer version. A bug concerning this was fixed relatively recently (see the bug report).
Make sure that you have installed Clang tools
open tools -> Get tools and features, select individual components, search cmake, then uninstall cmake and then re-install cmake, when complete, restart your computer.
I was seeing this on ubuntu - issue was cmake was assuming clang++ as c compiler.
CMake Error at /usr/share/cmake-3.10/Modules/CMakeTestCCompiler.cmake:52 (message):
The C compiler
"/usr/bin/clang++-9"
To fix it, export C, C++ compiler paths:
export CC=/usr/bin/clang
export CXX=/usr/bin/clang++
We are having trouble compiling a project using CMake (v2.8.12) under Windows 7 64Bit using Visual Studio 2012. CMake gives us the following errors. We already tried starting Cmake from the Visual Studio Command Line using admin rights. There seems to have been a similar bug in CMake 2.8.11: http://www.cmake.org/Bug/view.php?id=14440
CMake Error at C:/Program Files (x86)/CMake 2.8/share/cmake-2.8/Modules/CMakeDetermineCompilerId.cmake:446 (execute_process):
execute_process given COMMAND argument with no value.
Call Stack (most recent call first):
C:/Program Files (x86)/CMake 2.8/share/cmake-2.8/Modules/CMakeDetermineCompilerId.cmake:48 (CMAKE_DETERMINE_COMPILER_ID_VENDOR)
C:/Program Files (x86)/CMake 2.8/share/cmake-2.8/Modules/CMakeDetermineCCompiler.cmake:131 (CMAKE_DETERMINE_COMPILER_ID)
CMakeLists.txt:2 (project)
The C compiler identification is unknown
CMake Error at C:/Program Files (x86)/CMake 2.8/share/cmake-2.8/Modules/CMakeDetermineCompilerId.cmake:446 (execute_process):
execute_process given COMMAND argument with no value.
Call Stack (most recent call first):
C:/Program Files (x86)/CMake 2.8/share/cmake-2.8/Modules/CMakeDetermineCompilerId.cmake:48 (CMAKE_DETERMINE_COMPILER_ID_VENDOR)
C:/Program Files (x86)/CMake 2.8/share/cmake-2.8/Modules/CMakeDetermineCXXCompiler.cmake:127 (CMAKE_DETERMINE_COMPILER_ID)
CMakeLists.txt:2 (project)
The CXX compiler identification is unknown
Could NOT find SWIG (missing: SWIG_EXECUTABLE SWIG_DIR)
CMake Warning at src/CMakeLists.txt:44 (message):
SWIG was not found. You will not be able to compile for C#.
Configuring incomplete, errors occurred!
See also "C:/Users/hci/laser_control/CMakeFiles/CMakeOutput.log".
See also "C:/Users/hci/laser_control/CMakeFiles/CMakeError.log".
I had the same issue and fixed it running cmake as Admin
Those error messages
The C compiler identification is unknown
The CXX compiler identification is unknown
means CMake did find or assume a compiler but it wasn't able to compile a simple test program.
Take a look at CMakeFiles\CMakeError.log and check the error message there to see:
which compiler path/command line CMake did use
what the error message calling the compiler was
e.g. LINK : fatal error LNK1181: cannot open input file 'kernel32.lib'
If you add --debug-trycompile to the cmake call CMake will even keep the files it has tried to test compile (so you can copy/paste/re-run the command line from the error log in your cmd shell).
The last time I had this problem ...
The last time I had this problem was when my Visual Studio 2012 Professional standard installation did not install any Windows SDK (the error log was showing an missing SDK header).
To verify your SDK installation e.g. check that you have any Resource Compiler installed. It should be in a path similar to:
C:\Program Files (x86)\Microsoft SDKs\Windows\v[some version]\bin\RC.Exe
Since I was missing this - or more accurate any SDK - I installed Windows 8.1 SDK (since Visual Studio 2012 does target Windows 8.x) and voila my CMake was able again to compile the (test) programs.
Reference
Does Visual Studio 2012 include the full Windows SDK
CMake Error at CMakeLists.txt:30 (project): No CMAKE_C_COMPILER could be found
I was getting the terminal output:
The C compiler identification is unknown
The CXX compiler identification is unknown
I checked the CMakeError.log output:
\build\CMakeFiles\CMakeError.log
It showed the error:
warning MSB8003: The WindowsSDKDir property is not defined. Some build tools may not be found.
Going back to visual Studio I needed to install the Windows 10 SDK:
After installing the SDK and running cmake it showed:
Selecting Windows SDK version 10.0.19041.0 to target Windows 10.0.18363.
The C compiler identification is MSVC 19.28.29334.0
The CXX compiler identification is MSVC 19.28.29334.0
And built successfully!
I had similar problem also, if you are using Microsoft Visual Studio 2012, that might be because of update of KB2781514 is missing.
After I installed following update, CMake start to detect Visual Studio 2012 c/c++ compilers correctly.
http://www.microsoft.com/en-us/download/details.aspx?id=36020
I faced the same problem. Building and running a project from Visual Studio didn't work for me. However following worked for me:
Open command prompt for developers from Visual Studio tools.
Goto the directory where cmake.exe is present.
Run it.
Lets hope it works for you as well.
For some reason, deleting the build folder in my machine, solved the issue.
cmake:
The cmake assume that you set g++ compiler path accurately.In case due any reason if it did't find compiler path{/usr/bin/g++} then it throw an error like:
**The CXX compiler identification is unknown**
So given step will short out this error:
Locate your compiler CXX path{for g++ path under Linux is :/usr/bin/g++}
Set the Compiler Path and export it configuration: PATH=/usr/bin:$PATH;export PATH
Export compiler like : export CXX=/usr/bin/g++-7
Here we assume that g++,cmake,build-essential install in your Linux system...!!
Same problem here with cmake 2.8.12 and visual studio 10. Cmake may not be able to find the compiler. I solved the problem by uninstalling latest version and installed cmake 2.8.10.
I just encounter with this issue, after I uninstalled some MS software.
I fixed it by repair visual studio 2012.
First go to [Control panel], then select visual studio and repair it,things will go right now.
Make sure you select the proper version of visual Studio.
For example, Visual Studio 2012 is version 11.
I had the same problem and I had to use the "File -> Delete Cache", since I accidentally configured CMake to use wrong visual studio version.
If you use CMake 3.4.0, try upgrading to a newer version. A bug concerning this was fixed relatively recently (see the bug report).
Make sure that you have installed Clang tools
open tools -> Get tools and features, select individual components, search cmake, then uninstall cmake and then re-install cmake, when complete, restart your computer.
I was seeing this on ubuntu - issue was cmake was assuming clang++ as c compiler.
CMake Error at /usr/share/cmake-3.10/Modules/CMakeTestCCompiler.cmake:52 (message):
The C compiler
"/usr/bin/clang++-9"
To fix it, export C, C++ compiler paths:
export CC=/usr/bin/clang
export CXX=/usr/bin/clang++