System.DllNotFoundException: Unable to load DLL 'libuv' - asp.net-core

For me it was never an issue before I installed Newtonsoft.Json package using dnu (dnu install Newtonsoft.Json), which added the package to the project and wrote an entry in project.json as "Newtonsoft.Json": "8.0.1" under dependencies node.
dnu build ran successfully after package got installed. Now when I ran the command dnx web the following error appeared suddenly!
Here is the full output:
{lamb} dnx web
System.DllNotFoundException: Unable to load DLL 'libuv': The specified module could not be found. (Exception from HRESULT: 0x8007007E)
at Microsoft.AspNet.Server.Kestrel.Networking.Libuv.NativeMethods.uv_loop_size()
at Microsoft.AspNet.Server.Kestrel.Networking.Libuv.loop_size()
at Microsoft.AspNet.Server.Kestrel.Networking.UvLoopHandle.Init(Libuv uv)
at Microsoft.AspNet.Server.Kestrel.KestrelThread.ThreadStart(Object parameter)
I have no idea how I can get rid of this!

IF you are using "Any CPU" Try to change your build platform of your project to x64 or x86. I have this problem when using "Any CPU" and changing it solve it to me. To do the following:
Right click at your project in VS
Click at properties
Go to "Build" tab.
Selec your value in "Plataform target"

The Libuv dll is missing in one of the the package.
For OSX you can solve by copying the missing file by copy command.
use the following command
cp /Users//.dnx/packages/Microsoft.AspNet.Server.Kestrel/1.0.0-rc1-final/runtimes/osx/native/libuv.dylib /Users//.dnx/packages/Microsoft.AspNet.Server.Kestrel/1.0.0-rc1-final/lib/dnxcore50/

Maybe you have obsolete libuv library.
You can try to build and install it from sources. This is works for me on fedora-x64 linux:
# dnf install automake libtool wget
$ wget http://dist.libuv.org/dist/v1.8.0/libuv-v1.8.0.tar.gz
$ tar -zxf libuv-v1.8.0.tar.gz
$ cd libuv-v1.8.0
$ sh autogen.sh
$ ./configure
$ make
# make install
# cd /usr/local/lib
# cp libuv.* /usr/lib64/
# cp pkgconfig/libuv.pc /usr/lib64/pkgconfig/

Related

cmake installation on aix installed but command not found

i installed cmake on my AIX 7.2
bash-3.2# yum install cmake
Setting up Install Process
Package cmake-3.16.0-2.ppc already installed and latest version
Nothing to do
bash-3.2#
but running it .
bash-3.2$ cmake
bash: cmake: command not found
there is also no folder for cmake in /opt/bin directory
The RPM's on AIX likely install software to /opt/freeware so you probably need /opt/freeware/bin in your PATH to casually use "cmake" on the command line.
You can verify the paths installed by a package with e.g.
rpm -ql cmake|grep bin/

configure: error: Qtenv cannot find qmake in omnet++ installation

I'm trying to install omnetpp 5.2.1 on windows 10. But getting an error while doing ./configure command related to QT environment. I tried changing the configure.user file in omnetpp package to change the path of QT but still its not working. Here is the error:
configure:error: Qtenv cannot find qmake--maybe it is not in the path
or has some exotic name (tested names were: qmake qmake-qt5 qmake5)-
disabling Qtenv. You can try setting QT_PATH variable in
configure.user to a valid location.
qt5 might not be installed.
sudo apt install qt5-default worked for me while installing on Ubuntu 20.04.
OMNeT++ comes with all dependencies bundled. As long as you have executed the mingwenv.cmd and running from that shell, qmake should be available in the path (in tools/win64/mingw64/bin). Check if qmake.exe is present there. If not, make sure that ZIP file you have downloaded is intact. Standard windows unzip may fail on certain systems...
run ./configure WITH_QTENV = no

Running CMake on Amazon Linux

I am trying to build OpenJpeg on an AWS Amazon Linux EC2 instance. I installed cmake and gcc and had no issues during installation. When I try to cmake openjpeg I get the following error:
-- Check if the system is big endian
-- Searching 16 bit integer
CMake Error at /usr/share/cmake/Modules/TestBigEndian.cmake:44 (message):
no suitable type found
Call Stack (most recent call first):
CMakeLists.txt:164 (TEST_BIG_ENDIAN)
-- Configuring incomplete, errors occurred!
Checking the error logs it seems CMake is unable to determine the size of integers, shorts and longs. The full error log can be found in this gist
How can I work this out and make CMake work?
Amazon has a guide: Preparing to Compile Software, which proposes the following command to install a C compiler.
sudo yum groupinstall "Development Tools"
Next, you can download and build Cmake yourself: Install Cmake 3.
wget https://cmake.org/files/v3.18/cmake-3.18.0.tar.gz
tar -xvzf cmake-3.18.0.tar.gz
cd cmake-3.18.0
./bootstrap
make
sudo make install
Note: the last make actually needs sudo.
This works in the most recent Amazon Linux image (Nov 2021):
# Install sudo, wget and openssl, which is required for building CMake
yum install sudo wget openssl-devel -y
# Install development tools
sudo yum groupinstall "Development Tools" -y
# Download, build and install cmake
wget https://cmake.org/files/v3.18/cmake-3.18.0.tar.gz
tar -xvzf cmake-3.18.0.tar.gz
cd cmake-3.18.0
./bootstrap
make
sudo make install
Though this does not actually answer why the error was happening but I was able to build OpenJpeg by building CMake from source. So I just removed Cmake which was installed via yum and I believe was 2.8.12. Downloaded the latest CMake3 sources (v 3.10) built Cmake and openjpeg and all my other packages with no issues.
You could try to set up a Docker container to replicate correct environment. This way, you could form a container on your local machine, make sure it all builds on the container environment, and later use this environment on the EC2.
There is a project on Github that provides a Docker image which can be used to compile for Lambda and test stuff locally. Have a look: https://github.com/lambci/docker-lambda

installation of cmake on debian 8

I tried to install mcsema on my debian linux but I am stopped by error
Cmake 3.1 or higher is required. You are running 3.0.2. On debian this is the only version could be installed by apt-get install. Building CMake from sources, I get several errors as well. Does anyone know how to install the latest version of Cmake on Debian 8?
Download latests cmake release and follow the README.rst instructions:
UNIX/Mac OSX/MinGW/MSYS/Cygwin ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
You need to have a compiler and a make installed. Run the
bootstrap script you find in the source directory of CMake. You
can use the --help option to see the supported options. You may
use the --prefix=<install_prefix> option to specify a custom
installation directory for CMake. You can run the bootstrap script
from within the CMake source directory or any other build directory of
your choice. Once this has finished successfully, run make and
make install. In summary::
$ ./bootstrap && make && make install

CMake missing modules directory

I've installed CMake 2.8.11.2 package from CMake's website for Mac 64-bit. We recently upgraded a project from Qt 4 to Qt 5 and the CMake upgrade is mandatory for CMake to use Qt 5. However, when I type cmake . I get the following error:
CMake Error: Could not find CMAKE_ROOT !!!
CMake has most likely not been installed correctly.
Modules directory not found in
/Applications/CMake 2.8-11.app/Contents/bin
CMake Error: Error executing cmake::LoadCache(). Aborting.
I can confirm, there is no modules directory in the bin folder. I really don't know how to resolve this error, or how to get the modules needed.
Do hash -r to clear the cache, then do cmake --version.
It should work.
I had the same problem after upgrading on Ubuntu.
Removing cmake and the cmake-data package before performing the update solved it for me.
sudo apt-get remove cmake cmake-data
Now perform the update via
sudo -E add-apt-repository -y ppa:george-edison55/cmake-3.x
sudo -E apt-get update
sudo apt-get install cmake
This worked for me :
cd cmake-3.4.3
./bootstrap --prefix=/usr
make
sudo make install
Additionally, you may encounter the same error when running CMake from Cygwin. This may be caused by a PATH variable listing /bin before /usr/bin: in this case CMake is launched as /bin/cmake instead of /usr/bin/cmake, and trying to load modules from //share/cmake-X.Y.Z (which is a UNC path on Windows) instead of /usr/share/cmake-X.Y.Z.
Explicitly export'ing a correct CMAKE_ROOT isn't helpful, and cmake keeps displaying the same misleading message.
The issue can be solved by setting PATH to /usr/bin:/bin:/everything/else in your .bash_profile.
I was able to fix this error on Linux (for other who may be searching for answer on Linux) while trying to upgrade cmake 2.8.11 to 2.8.12 by exporting the CMAKE_ROOT environment variable like so:
export CMAKE_ROOT=/path_to_install/cmake-2.8.12.2-Linux-i386/share/cmake-2.8
The share directory should be on the same level as your bin directory.
I got the same error message upgrading cmake-3.5.1 to cmake-3.7.1 on Ubuntu 16.04.01 LTS. I just updated the repositories with
sudo apt-get update
Then
cmake --version
brought up the correct and upgraded cmake version and the error messages was gone.
In my opinion/case this is a developer "problem". I suspect this occurs mostly to new developers so I go a bit deeper to put it in the right perspective:
To "not mess with" the original system files used for daily work and separate the new compiled and volatile programs in a separate location it is common to not just change but add/mount a complete folder structure similar to the original OS folder structure in a special "development" location.
So more or less a mirrored folder structure of the original one but connected/linked to the original resources.
There for we need to add an environment variable to our user bash profile where we tell the system: "link our development folders to the following direction/dir."
On Arch Linux this is done in a file in ~/.bashrc - that is linked/forwarded in/by the ~/.bash_profile ("~" stands for /home/your user name/) and MacOS/Unix will be similar.
To do that there are 2 ways:
you can open the .bashrc file and add your environment path to the bottom of it
or
you can use "export" to put the environment variables to the right place in your user bash file.
for kde development e.g. you need to add a path at the end of the ~/.bashrc file like so:
# Adding the kdesrc-build directory to the path
export PATH="$HOME/kde/src/kdesrc-build:$PATH"
what basically tells the system: the development is done in the /home/user name/kde/src folder - there are your files. You can choose where you want to locate your development environment.
If you execute cmake it "thinks" your files are in the original OS folder and the "Could not find CMAKE_ROOT" - message will disappear because it finds all your files since properly linked from your development folder structure to your system folder structure.
So basically to solve the problem you could just execute cmake in the right system folder - it just could mess up your system if the program or make files are not proper done so it is pulled to the home folder development folder structure. And you just have to tell that cmake, so it can find all needed files to compile your stuff, including the CMAKE_ROOT.
Another problem could be that cmake isn't properly installed.
On Arch Linux systems that can be made sure by using the "sudo pacman -Syu cmake" command and it copies the files in the right direction and sets the right user variables to get it executed and reinstall cmake if necessary.
Btw, if you are on other systems like Debian make sure to use a Debian apt repository, it can differ from the Ubuntu repository, especially if you compile for the chosen system.
I tried to write a general "beginners in mind" overview to get em a fundamental picture. Executing cmake in the right folder solved that exact problem for me that was asked for.
(Actual that flags works for the actual cmake version from the official arch repository:
1:
cd /home/ivanovic/kde/src/program_name
than:
2:
cmake -S/home/ivanovic/kde/src/program_name -B/home/ivanovic/kde/build/program_name -DCMAKE_INSTALL_PREFIX=/home/ivanovic/kde/usr -DCMAKE_BUILD_TYPE=Debug
Pay attention that between -S and /home/... is no space, same at -B and /home/...
This worked fine for my kde system software builds.
)
If anyone gets the following error:
Modules directory not found in
/usr/share/cmake-3.20
cmake version 3.20.2
Solution which worked for me:
sudo cp -r /share/cmake-3.20 /usr/share/
The above command copies the cmake-3.20 directory from /share to /usr/share
This also happened to me on a fresh install of Ubuntu 21.04 and was fixed by installing it from "snap":
sudo snap install cmake --classic
(and then making sure that /snap/bin is in $PATH)
tl;dr: check the permission of folder /usr/local/share/cmake-x.xx.
I had a similar problem with the cmake that I build from source code. I compile the code with the following command.
./configure
make
sudo make install
and the binary files were placed into /usr/local/bin as expected. But I will encounter the same problem when executing cmake without sudo privilege. This is because the normal user don't have reading permission with folder /usr/local/share/cmake-3.xx.
The error went away when I give myself the permission to read/execute, with the command.
sudo chmod 755 /usr/local/share/cmake-3.xx
(xx will be the specific version that you installed.)