Installing OpenCV on linux: getting CMake Error
I am trying to install OpenCV on linux to use with nodejs.
I followed the instructions in https://docs.opencv.org/3.4/d4/da1/tutorial_js_setup.html and got the version 4.0.0 of OpenCV from the release page.
When I run the following command in my opencv directory :
python ./platforms/js/build_js.py --emscripten_dir ~/emsdk/ build_js
I get the following error:
Re-run cmake no build system arguments
CMake Error at /usr/share/cmake-3.5/Modules/CMakeDetermineSystem.cmake:104 (message):
Could not find toolchain file:
~/emsdk/cmake/Modules/Platform/Emscripten.cmake
Call Stack (most recent call first):
CMakeLists.txt:131 (project)
CMake Error: CMAKE_CXX_COMPILER not set, after EnableLanguage
CMake Error: CMAKE_C_COMPILER not set, after EnableLanguage
-- Configuring incomplete, errors occurred!
Traceback (most recent call last):
File "./platforms/js/build_js.py", line 224, in <module>
builder.config()
File "./platforms/js/build_js.py", line 164, in config
execute(cmd)
File "./platforms/js/build_js.py", line 23, in execute
raise Fail("Child returned: %s" % retcode)
__main__.Fail: Child returned: 1
I get the same error when I try and install OpenCV via (I have successfully installed OPenCV with these commands before, but I am not sure why now the same command is failing):
mkdir release
cd release
cmake -D CMAKE_BUILD_TYPE=RELEASE -D CMAKE_INSTALL_PREFIX=/usr/local ..
My cMake version is cmake version 3.5.1.
EDIT
Like it has been suggested, apt-get install cmake gcc g++ then cmake in a new directory solved the issue.
I still had other errors afterwards and at the end I had to downgrade my node js to v8.12.0 and install opencv via npm install opencv (that command gave lots of errors with the latest version of nodejs (11.2)).
javascript opencv cmake installation
asked Nov 22 '18 at 14:25
christeghochristegho
809
add a comment |
I am trying to install OpenCV on linux to use with nodejs.
I followed the instructions in https://docs.opencv.org/3.4/d4/da1/tutorial_js_setup.html and got the version 4.0.0 of OpenCV from the release page.
When I run the following command in my opencv directory :
python ./platforms/js/build_js.py --emscripten_dir ~/emsdk/ build_js
I get the following error:
Re-run cmake no build system arguments
CMake Error at /usr/share/cmake-3.5/Modules/CMakeDetermineSystem.cmake:104 (message):
Could not find toolchain file:
~/emsdk/cmake/Modules/Platform/Emscripten.cmake
Call Stack (most recent call first):
CMakeLists.txt:131 (project)
CMake Error: CMAKE_CXX_COMPILER not set, after EnableLanguage
CMake Error: CMAKE_C_COMPILER not set, after EnableLanguage
-- Configuring incomplete, errors occurred!
Traceback (most recent call last):
File "./platforms/js/build_js.py", line 224, in <module>
builder.config()
File "./platforms/js/build_js.py", line 164, in config
execute(cmd)
File "./platforms/js/build_js.py", line 23, in execute
raise Fail("Child returned: %s" % retcode)
__main__.Fail: Child returned: 1
I get the same error when I try and install OpenCV via (I have successfully installed OPenCV with these commands before, but I am not sure why now the same command is failing):
mkdir release
cd release
cmake -D CMAKE_BUILD_TYPE=RELEASE -D CMAKE_INSTALL_PREFIX=/usr/local ..
My cMake version is cmake version 3.5.1.
EDIT
Like it has been suggested, apt-get install cmake gcc g++ then cmake in a new directory solved the issue.
I still had other errors afterwards and at the end I had to downgrade my node js to v8.12.0 and install opencv via npm install opencv (that command gave lots of errors with the latest version of nodejs (11.2)).
javascript opencv cmake installation
asked Nov 22 '18 at 14:25
christeghochristegho
809
1
it looks like if the c++/c compiler are not there... do something likeapt-get install cmake gcc g++not sure what is your linux flavor so this command is for ubuntu. Remember to remove the CMakeCache.txt file or to do cmake in a clean directory
– api55
Nov 22 '18 at 14:59
Does the file~/emsdk/cmake/Modules/Platform/Emscripten.cmakeexists or not actually? If it exists, try to replace~with exact path to home directory. If the file misses, you probably specify wrong emscripten directory.
– Tsyvarev
Nov 22 '18 at 17:06
1
@api55apt-get install cmake gcc g++did help, when I redid the cmake in a clean directory! thank you.
– christegho
Nov 23 '18 at 13:40
add a comment |
I am trying to install OpenCV on linux to use with nodejs.
I followed the instructions in https://docs.opencv.org/3.4/d4/da1/tutorial_js_setup.html and got the version 4.0.0 of OpenCV from the release page.
When I run the following command in my opencv directory :
python ./platforms/js/build_js.py --emscripten_dir ~/emsdk/ build_js
I get the following error:
Re-run cmake no build system arguments
CMake Error at /usr/share/cmake-3.5/Modules/CMakeDetermineSystem.cmake:104 (message):
Could not find toolchain file:
~/emsdk/cmake/Modules/Platform/Emscripten.cmake
Call Stack (most recent call first):
CMakeLists.txt:131 (project)
CMake Error: CMAKE_CXX_COMPILER not set, after EnableLanguage
CMake Error: CMAKE_C_COMPILER not set, after EnableLanguage
-- Configuring incomplete, errors occurred!
Traceback (most recent call last):
File "./platforms/js/build_js.py", line 224, in <module>
builder.config()
File "./platforms/js/build_js.py", line 164, in config
execute(cmd)
File "./platforms/js/build_js.py", line 23, in execute
raise Fail("Child returned: %s" % retcode)
__main__.Fail: Child returned: 1
I get the same error when I try and install OpenCV via (I have successfully installed OPenCV with these commands before, but I am not sure why now the same command is failing):
mkdir release
cd release
cmake -D CMAKE_BUILD_TYPE=RELEASE -D CMAKE_INSTALL_PREFIX=/usr/local ..
My cMake version is cmake version 3.5.1.
EDIT
Like it has been suggested, apt-get install cmake gcc g++ then cmake in a new directory solved the issue.
I still had other errors afterwards and at the end I had to downgrade my node js to v8.12.0 and install opencv via npm install opencv (that command gave lots of errors with the latest version of nodejs (11.2)).
javascript opencv cmake installation
asked Nov 22 '18 at 14:25
christeghochristegho
809
I am trying to install OpenCV on linux to use with nodejs.
I followed the instructions in https://docs.opencv.org/3.4/d4/da1/tutorial_js_setup.html and got the version 4.0.0 of OpenCV from the release page.
When I run the following command in my opencv directory :
python ./platforms/js/build_js.py --emscripten_dir ~/emsdk/ build_js
I get the following error:
Re-run cmake no build system arguments
CMake Error at /usr/share/cmake-3.5/Modules/CMakeDetermineSystem.cmake:104 (message):
Could not find toolchain file:
~/emsdk/cmake/Modules/Platform/Emscripten.cmake
Call Stack (most recent call first):
CMakeLists.txt:131 (project)
CMake Error: CMAKE_CXX_COMPILER not set, after EnableLanguage
CMake Error: CMAKE_C_COMPILER not set, after EnableLanguage
-- Configuring incomplete, errors occurred!
Traceback (most recent call last):
File "./platforms/js/build_js.py", line 224, in <module>
builder.config()
File "./platforms/js/build_js.py", line 164, in config
execute(cmd)
File "./platforms/js/build_js.py", line 23, in execute
raise Fail("Child returned: %s" % retcode)
__main__.Fail: Child returned: 1
I get the same error when I try and install OpenCV via (I have successfully installed OPenCV with these commands before, but I am not sure why now the same command is failing):
mkdir release
cd release
cmake -D CMAKE_BUILD_TYPE=RELEASE -D CMAKE_INSTALL_PREFIX=/usr/local ..
My cMake version is cmake version 3.5.1.
EDIT
Like it has been suggested, apt-get install cmake gcc g++ then cmake in a new directory solved the issue.
I still had other errors afterwards and at the end I had to downgrade my node js to v8.12.0 and install opencv via npm install opencv (that command gave lots of errors with the latest version of nodejs (11.2)).
javascript opencv cmake installation
javascript opencv cmake installation
asked Nov 22 '18 at 14:25
christeghochristegho
809
asked Nov 22 '18 at 14:25
christeghochristegho
809
edited Nov 23 '18 at 13:43
christegho
asked Nov 22 '18 at 14:25
christeghochristegho
809
asked Nov 22 '18 at 14:25
christeghochristegho
809
asked Nov 22 '18 at 14:25
christeghochristegho
809
809
1
it looks like if the c++/c compiler are not there... do something likeapt-get install cmake gcc g++not sure what is your linux flavor so this command is for ubuntu. Remember to remove the CMakeCache.txt file or to do cmake in a clean directory
– api55
Nov 22 '18 at 14:59
Does the file~/emsdk/cmake/Modules/Platform/Emscripten.cmakeexists or not actually? If it exists, try to replace~with exact path to home directory. If the file misses, you probably specify wrong emscripten directory.
– Tsyvarev
Nov 22 '18 at 17:06
1
@api55apt-get install cmake gcc g++did help, when I redid the cmake in a clean directory! thank you.
– christegho
Nov 23 '18 at 13:40
add a comment |
1
it looks like if the c++/c compiler are not there... do something likeapt-get install cmake gcc g++not sure what is your linux flavor so this command is for ubuntu. Remember to remove the CMakeCache.txt file or to do cmake in a clean directory
– api55
Nov 22 '18 at 14:59
Does the file~/emsdk/cmake/Modules/Platform/Emscripten.cmakeexists or not actually? If it exists, try to replace~with exact path to home directory. If the file misses, you probably specify wrong emscripten directory.
– Tsyvarev
Nov 22 '18 at 17:06
1
@api55apt-get install cmake gcc g++did help, when I redid the cmake in a clean directory! thank you.
– christegho
Nov 23 '18 at 13:40
1
1
it looks like if the c++/c compiler are not there... do something like
apt-get install cmake gcc g++ not sure what is your linux flavor so this command is for ubuntu. Remember to remove the CMakeCache.txt file or to do cmake in a clean directory– api55
Nov 22 '18 at 14:59
it looks like if the c++/c compiler are not there... do something like
apt-get install cmake gcc g++ not sure what is your linux flavor so this command is for ubuntu. Remember to remove the CMakeCache.txt file or to do cmake in a clean directory– api55
Nov 22 '18 at 14:59
Does the file
~/emsdk/cmake/Modules/Platform/Emscripten.cmake exists or not actually? If it exists, try to replace ~ with exact path to home directory. If the file misses, you probably specify wrong emscripten directory.– Tsyvarev
Nov 22 '18 at 17:06
Does the file
~/emsdk/cmake/Modules/Platform/Emscripten.cmake exists or not actually? If it exists, try to replace ~ with exact path to home directory. If the file misses, you probably specify wrong emscripten directory.– Tsyvarev
Nov 22 '18 at 17:06
1
1
@api55
apt-get install cmake gcc g++ did help, when I redid the cmake in a clean directory! thank you.– christegho
Nov 23 '18 at 13:40
@api55
apt-get install cmake gcc g++ did help, when I redid the cmake in a clean directory! thank you.– christegho
Nov 23 '18 at 13:40
add a comment |
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1
it looks like if the c++/c compiler are not there... do something like
apt-get install cmake gcc g++not sure what is your linux flavor so this command is for ubuntu. Remember to remove the CMakeCache.txt file or to do cmake in a clean directory– api55
Nov 22 '18 at 14:59
Does the file
~/emsdk/cmake/Modules/Platform/Emscripten.cmakeexists or not actually? If it exists, try to replace~with exact path to home directory. If the file misses, you probably specify wrong emscripten directory.– Tsyvarev
Nov 22 '18 at 17:06
1
@api55
apt-get install cmake gcc g++did help, when I redid the cmake in a clean directory! thank you.– christegho
Nov 23 '18 at 13:40