Looking for help with this error message.
After installing the C++ extension for VS Code, installing MinGW-64, and setting the environment path variable, creating a simple hello world program I am getting the following peculiar error:
C:\Users\oscar\Documents\Labs>cd "C:/Program Files/mingw-w64/x86_64-8.1.0-posix-seh-rt_v6-rev0/mingw64/binc/Users/oscar/OneDrive/Documents/test/" && g++ helloworld.cpp -o helloworld && "C:/Program Files/mingw-w64/x86_64-8.1.0-posix-seh-rt_v6-rev0/mingw64/binc/Users/oscar/OneDrive/Documents/test/"helloworld
The system cannot find the path specified.
Notes:
g++ version shows 8.1.0 and
using CodeRunner extension to run the code in the terminal
Fixed by uninstalling and reinstalling everything
Related
I am trying to create a simple helloworld Eclipse CDT project using the CMake GUI. The CMake file looks like this:
cmake_minimum_required(VERSION "3.11.1")
project("HelloWorld")
add_executable("HelloWorldMain" "Main.cpp")
install(TARGETS "${PROJECT_NAME}" DESTINATION bin)
install(FILES "Main.cpp" DESTINATION src)
The only c/c++ compiler I have is MSVC so I set that as the CMAKE_CXX_COMPILER but I get an error when configuring as shown here:
I know this file exists, but how do I get it to find it?
I ended up not using the GUI. Instead I used the VS x64 Native Tools Command Prompt then ran the cmake command:
cmake -G "Eclipse CDT4 - NMake Makefiles" -DCMAKE_BUILD_TYPE=Debug -DCMAKE_ECLIPSE_GENERATE_SOURCE_PROJECT=TRUE -DCMAKE_ECLIPSE_MAKE_ARGUMENTS=-j8 ../
I am using Eclipse on a macOS machine. CMake is present on my machine at /usr/local/bin/cmake and has been installed using Homebrew. Eclipse is at the latest version (2018-09).
I have the following target in a Makefile, which has been set up and is visible from Eclipse:
all:
./configure
Rscript -e "Rcpp::compileAttributes()"
R CMD INSTALL --no-multiarch --with-keep.source .
Inside the configure file, there is this code:
cd src/build;cmake ..
However, when I double click the all target in Eclipse, I get the following message:
make all
./configure
./configure: line 1: cmake: command not found
make: *** [all] Error 127
I remember that some time ago this target worked out of the box on macOS. I can also launch CMake from a terminal without any trouble.
echo $PATH shows different behaviour:
If called from a standard macOS terminal, it yields /usr/local/sbin:/usr/local/bin:/usr/local/bin:/usr/bin:/bin:/usr/sbin:/sbin:/Library/TeX/texbin:/opt/X11/bin
If called from a TM Terminal inside Eclipse, it yields /usr/bin:/bin:/usr/sbin:/sbin
What is the most canonical way to have Eclipse detect my CMake installation ?
For macOS High Sierra 10.13.6, the solution provided here works. This must be performed to see the changes immediately.
Using homebrew on my El Capitan(10.11.6), i installed java and eclipse-ptp through the following commands:
brew cask install java
brew cask install eclipse-ptp
I have gcc and thus gfortran through homebrew from earlier.
Eclipse PTP got copied into the Apps successfully. I opened the application and created a helloworld demo project and tried to build it. I get the following message in the build console window:
make all
make: gfortran: No such file or directory
gfortran -O2 -g \
-o bin/demo \
src/demo.f90
make: *** [all] Error 1
I glean that this issue maybe due to improper setting of the path variable, what i do fail to understand is:
Given that all the installs happened through homebrew, why is this problem appearing?
How do i fix this issue?
I'm working on Solaris 11.3 with Sun Studio 12.5. When I attempt to configure with Cmake out-of-tree, Cmake finishes with configuration errors and does not produce the makefiles. In-tree may be broken, too. But our procedures say to build out-of-tree, so that;' what I do.
I have nearly no Cmake experience. Others contributed the the CMake files, and I struggle with tasks related to them. I'm not sure if I am doing something wrong, if our Cmake files are broken, or if Cmake is not well tested under Solaris.
What is going on with CMake, and how do I fix it?
Here are the links to the Cmake files. I can copy/paste them, but it just takes up a bunch of space. The files are hosted on GitHub so they should always be available.
CMakefileList.txt
cryptopp-config.cmake
Here is Solaris' Cmake version, prior to me installing 3.6.2:
$ cmake --version
cmake version 2.8.6
Below is from Solaris Cmake version 2.8.6.
cryptopp-build$ export CXX=/opt/developerstudio12.5/bin/CC
cryptopp-build$ export CXXFLAGS="-DNDEBUG -g2 -O2 -D__SSE2__ -D__SSE3__ -D__SSSE3__ -D__SSE4_1__ -D__SSE4_2__ -D__AES__ -D__PCLMUL__ -D__RDRND__ -D__RDSEED__ -D__AVX__ -D__AVX2__ -D__BMI__ -D__BMI2__ -D__ADX__ -xarch=avx2_i"
cryptopp-build$ cmake ../cryptopp
-- The CXX compiler identification is unknown
-- Check for working CXX compiler: /bin/c++
-- Check for working CXX compiler: /bin/c++ -- broken
CMake Error at /usr/share/cmake-2.8/Modules/CMakeTestCXXCompiler.cmake:45 (MESSAGE):
The C++ compiler "/bin/c++" is not able to compile a simple test program.
It fails with the following output:
Change Dir: /export/home/test/cryptopp-build/CMakeFiles/CMakeTmp
Run Build Command:/bin/gmake "cmTryCompileExec/fast"
/bin/gmake -f CMakeFiles/cmTryCompileExec.dir/build.make
CMakeFiles/cmTryCompileExec.dir/build
gmake[1]: Entering directory
`/export/home/test/cryptopp-build/CMakeFiles/CMakeTmp'
/usr/bin/cmake -E cmake_progress_report
/export/home/test/cryptopp-build/CMakeFiles/CMakeTmp/CMakeFiles 1
Building CXX object CMakeFiles/cmTryCompileExec.dir/testCXXCompiler.cxx.o
/bin/c++ -DNDEBUG -g2 -O2 -D__SSE2__ -D__SSE3__ -D__SSSE3__ -D__SSE4_1__
-D__SSE4_2__ -D__AES__ -D__PCLMUL__ -D__RDRND__ -D__RDSEED__ -D__AVX__
-D__AVX2__ -D__BMI__ -D__BMI2__ -D__ADX__ -xarch=avx2_i -o
CMakeFiles/cmTryCompileExec.dir/testCXXCompiler.cxx.o -c
/export/home/test/cryptopp-build/CMakeFiles/CMakeTmp/testCXXCompiler.cxx
c++: error: language arch=avx2_i not recognized
c++: error: language arch=avx2_i not recognized
gmake[1]: Leaving directory
`/export/home/test/cryptopp-build/CMakeFiles/CMakeTmp'
gmake[1]: *** [CMakeFiles/cmTryCompileExec.dir/testCXXCompiler.cxx.o] Error
1
gmake: *** [cmTryCompileExec/fast] Error 2
CMake will not be able to correctly generate this project.
Call Stack (most recent call first):
CMakeLists.txt:9 (project)
-- Configuring incomplete, errors occurred!
And:
$ /opt/developerstudio12.5/bin/CC -V
CC: Studio 12.5 Sun C++ 5.14 SunOS_i386 2016/05/31
I built Cmake 3.6.2 from sources and installed in /usr/local to attack the CXX compiler identification is unknown issue, but it appears to be having some troubles. As I said earlier, I'm not a Cmake expert (and I'm not sure how one can mess up a make && sudo make install).
cryptopp-build$ cmake ../cryptopp
CMake Error: Could not find CMAKE_ROOT !!!
CMake has most likely not been installed correctly.
Modules directory not found in
/usr/local/bin
CMake Error: Error executing cmake::LoadCache(). Aborting.
Clearing the cache as suggested by #AndrewHenle results in:
# The project GNUmakefile clears all Cmake artifacts because Cmake cannot seem to do it on its own
$ cd cryptopp
$ git status -s
$
$ cd ..
$ rm -rf cryptopp-build
$ mkdir cryptopp-build
$ cd cryptopp-build
# Using 3.6.2 now
$ cmake ../cryptopp
CMake Error: Could not find CMAKE_ROOT !!!
CMake has most likely not been installed correctly.
Modules directory not found in
/usr/local/bin
CMake Error: Error executing cmake::LoadCache(). Aborting.
So there appeared to be two problems. First was the down level Sun supplied Cmake. There's nothing genius about diagnosing it as "too old".
The second issue was more interesting. It appears the CMake Error: Could not find CMAKE_ROOT !!! was cause by sudo make install Once I switched to sudo gmake install the issue went away.
Here are the bug reports on the issue:
Cmake Issue 16302: Cmake fails to identify Sun Studio 12.5 compiler
Cmake Issue 16303: Cmake fails to produce a working installation on Solaris 11.3
I've had Eclipse for Java on my computer for a few years, and decided to install the CDT and learn C. I installed both MinGW and Cygwin and the CDT detects and tries to use them when I make a new project.
I choose File > New C++ Project and choose Hello World C++ Project and the CygwinGCC toolchain. I name the project "asdf" and hit "Build Debug" in the toolbar. The compiler completes without error. I hit Run and nothing happens.
Browsing to the project directory manually and running asdf.exe gives me an error saying:
"The program can't start because cygwin1.dll is missing from your computer. Try reinstalling the program to fix this problem."
The same thing happens using MinGW, only a different dll is missing.
What do I need to do to have a usable .exe?
(I'm running Windows 7 x64 and the newest version of Eclipse and the CDT.)
EDIT:
The compiler output is as follows:
**** Build of configuration Debug for project asdf ****
make all
Building file: ../src/asdf.cpp
Invoking: Cygwin C++ Compiler
g++ -O0 -g3 -Wall -c -fmessage-length=0 -MMD -MP -MF"src/asdf.d" -MT"src/asdf.d" -o"src/asdf.o" "../src/asdf.cpp"
cygwin warning:
MS-DOS style path detected: C:\Users\Shawn\Dropbox\eclipse\asdf\Debug
Preferred POSIX equivalent is: /cygdrive/c/Users/Shawn/Dropbox/eclipse/asdf/Debug
CYGWIN environment variable option "nodosfilewarning" turns off this warning.
Consult the user's guide for more details about POSIX paths:
http://cygwin.com/cygwin-ug-net/using.html#using-pathnames
Finished building: ../src/asdf.cpp
Building target: asdf.exe
Invoking: Cygwin C++ Linker
g++ -o"asdf.exe" ./src/asdf.o
Finished building target: asdf.exe
This error message means that Windows isn't able to find "cygwin1.dll". The Programs that the Cygwin gcc create depend on this DLL. The file is part of cygwin , so most likely it's located in C:\cygwin\bin. To fix the problem all you have to do is add C:\cygwin\bin (or the location where cygwin1.dll can be found) to your system path. Alternatively you can copy cygwin1.dll into your Windows directory.
There is a nice tool called DependencyWalker that you can download from http://www.dependencywalker.com . You can use it to check dependencies of executables, so if you inspect your generated program it tells you which dependencies are missing and which are resolved.
You can compile with either Cygwin's g++ or MinGW (via stand-alone or using Cygwin package). However, in order to run it, you need to add the Cygwin1.dll (and others) PATH to the system Windows PATH, before any cygwin style paths.
Thus add: ;C:\cygwin64\bin to the end of your Windows system PATH variable.
Also, to compile for use in CMD or PowerShell, you may need to use:
x86_64-w64-mingw32-g++.exe -static -std=c++11 prog_name.cc -o prog_name.exe
(This invokes the cross-compiler, if installed.)
To add to this and save someone another google, just do this in cmd:
set PATH=%PATH%;C:\cygwin64\bin