How to exactly install dart editor in debian? Tried to build dart from the source on this site Building Dart on Debian up to the gclient runhooks and ran
$ cd dart
$ ./tools/build.py -m release -a x64
which they say will build ALL (including the dart editor w/c I prefer). But unluckily, the build fails after waiting a thousand years. Any ideas on how to properly install ALL the dart components on debian?
I tried a while ago and failed building Dartium on Debian.
It might make sense to build the Dart runtime you use for the production server yourself but IMHO building DartEditor and Dartium is not worth the effort on Debian.
To install the development environment I just download the Linux package and unpack it.
Related
I tried following this guide to install ROS, but even after adding ROS source.list and its key
sudo apt install ros-melodic-desktop-full
gave error.
E: Unable to locate package ros-melodic-desktop-full
Then I ran this command
sudo apt search ros
to see if any such package exists. I couldn't find ros-melodic-desktop-full but I found another similar package ros-desktop-full.
So I installed it instead. The installation went smooth without giving any errors.
Next step in the guide is to set-up ROS environment variable, but I have no such directory
/opt/ros
So how do I setup the environment variable?
P.S.
I also installed some tools and dependencies with this command
sudo apt install python3-rosdep python3-rosinstall python3-rosinstall-generator python3-wstool build-essential
and initialized rosdep
sudo rosdep init
rosdep update
The ros-desktop-full package you installed is part of the official Ubuntu release.
ROS Melodic (and in the future, Noetic) is published by the OSRF in a separate repository (packages.ros.org). These packages install to /opt/ros/. However, some ROS packages have also been ported to Debian, which is how they found their way to Ubuntu (which derives from Debian).
The Debian packages are fully functional, but they do not install to /opt/ros. Instead, everything is integrated in the operating system itself. This means that you need to set up your personal workspace slightly differently.
Given that most tutorials assume that you use the OSRF packages, I suggest you either wait for the Noetic release (scheduled for the end of May 2020), then install ros-noetic-desktop-full, or downgrade to Ubuntu 18.04 LTS to use ROS Melodic.
From the documentation here, melodic is only supported on Ubuntu 18.04. The ROS version targeting Focal (20.04) is Noetic, but that one has not been released yet (see Distributions). I'm not sure what ROS version Ubuntu packages (the ros-desktop-full one you installed), but I was not successful in using it.
If you really do want to use Ubuntu 20.04, then I think your best option currently is to compile from source. Last time I checked the precompiled debs for Noetic are not yet available at http://packages.ros.org/ros/ubuntu (you can track release progress at github issue 21513). No idea if compiling Noetic from source is easy or hard, but I was able to compile ROS2 foxy from source without too much trouble though.
Ive looked all over the official Dart site. They go into great depth about 'dev' channels and 'stable' channels but no clue whatsover about how to actually install a version of the SDK. There is no information about the current stable and dev versions either.
Clearly I have missed something hiding in plain site. I want to try out some official angulardart component libraries but the builder requires Dart version 2 - but I have no idea how to get that.
Can someone put me out of my misery, and tell me how I'm being an idiot
Thanks
Installation instructions for dart v2 (which currently only has a dev channel release) can be found here. To summarize,
Mac Installation with homebrew
brew tap dart-lang/dart
brew install dart --devel
Edit: If you are upgrading from Dart 1 see, How to upgrade to Dart 2?
Windows Installation
Visit here for the graphical installer or if you have Chocolatey installed do:
choco install dart-sdk -version 2
Linux
sudo apt-get update
sudo apt-get install apt-transport-https
sudo sh -c 'curl https://dl-ssl.google.com/linux/linux_signing_key.pub | apt-key add -'
sudo apt-get update
export PATH=/usr/lib/dart/bin:$PATH
sudo sh -c 'curl https://storage.googleapis.com/download.dartlang.org/linux/debian/dart_unstable.list > /etc/apt/sources.list.d/dart_unstable.list'
sudo apt-get install dart
Ahhhhhhh. If you go to https://www.dartlang.org/install/archive
And then wait for about 10 minutes, you suddenly get some links. - Problem solved.
The latest version in the dev channel is Dart 2 (2.0.0-alpha.36).
There is no released Dart 2 yet.
This VM and tools can still process most Dart 1 code.
There are several flags to enable Dart 2 features for the VM or tools
--preview-dart-2
--reify-generic-functions
--reify-generics
--limit-ints-to-64-bits
--sync-async
these options are highly experimental and in flux.
Not all tools support the same set of options.
New options might be added or existing ones removed when the behavior becomes the default without previous anouncement.
I found above options in https://github.com/dart-lang/sdk/blob/b0a2e6b9c99d8a13ecd59d1636d5201adc77fc07/tools/testing/dart/test_suite.dart
for windows go to dart.dev for install dart
if you want if dart is install in your pc
1-open terminal and type this command dart --version when will appear version dart
ex: 2.28 (sdkDart)
I'm testing clickhouse. Finally I installed ClickHouse on my virtual machine. But I've got some problem to make it.
--> Finished Dependency Resolution
Error: Package: clickhouse-server-1.1.54236-4.el6.x86_64 (clickhouse)
Requires: libbfd-2.20.51.0.2-5.44.el6.so()(64bit)
But, I already have this "binutils-2.20.51.0.2-5.47". (More recent version)
[root#node01 ~]# rpm -qa | grep "binutils"
binutils-2.20.51.0.2-5.47.el6_9.1.x86_64
So, I removed binutils-2.20.51.0.2-5.47 and install binutils-2.20.51.0.2-5.44, it works well.
Is this common issue?
Thanks.
Chan.
The BFD libraries are only intended for internal use by binutils and related tools. There is no ABI stability even within the same release of CentOS (or Red Hat Enterprise Linux). This is why the library name can change from minor release to minor release, breaking RPM dependencies in this way.
You need to talk to whoever builds clickhouse. They need to bundle their own version of BFD if they truly need it, or use supported libraries such as libelf from elfutils if they need only a tiny subset.
We recently decided to use Android Studio's CMake support as a part of our development, and as far as compiling and building is concerned everything works fine for the development team.
As a part of our validation efforts we are also running Jenkins for continuous testing, and that's where the problems are starting. The machine running Jenkins does not have Android Studio installed, nor it has an UI. As such it only possesses the android NDK and SDK. However, when running tests, the following error occurs :
Failed to find CMake.
Install from Android Studio under File/Settings/Appearance & Behavior/System Settings/Android SDK/SDK Tools/CMake.
Expected CMake executable at /home/vagrant/android-sdk-linux/cmake/bin/cmake.
The problem now is that there is no way to install CMake like suggested ! The machine does not have any UI to run Android Studio, and the command line tools feature no option to install CMake. And creating sym-links isn't the solution either, as CMake isn't the only thing it's looking for.
How am I supposed to make my project work on the machine ? CMake is running perfectly (as it was already used as part of the tests) so the problem is only coming from Gradle looking only in the SDK directory for it...
The problem now is that there is no way to install CMake like suggested
Actually it is not! Instead of using android list sdk command for installing sdk packages you should use new command line tool: sdk-manager.
Ndk, cmake are available for installing through this new android sdk tool.
you need to install manually cmake on your system unix:
go to your android sdk directory ${ANDROID_HOME} and create new cmake folder with:
wget "https://dl.google.com/android/repository/cmake-3.6.3155560-linux-x86_64.zip"
unzip -q cmake-3.6.3155560-linux-x86_64.zip -d ${ANDROID_HOME}/cmake
add to PATH ENV ${PATH}:${ANDROID_HOME}/cmake/bin
I have a rails 3 application that I'd like to deploy. My deployment environment does not have build tools installed and cannot then install dependencies with native extensions.
I have a build host configured with build tools that can build the native extensions.
How can I deploy the native extensions from my build host ?
I have tried doing bundle package on the build host and bundle install --local on the remote host. It correctly installs gems without native extensions but it still tries to build native extensions on the production host.
It is bad practice to build on your production servers.
When I deploy Django or Rails I always build a toolchain for whatever the OS package management system doesn't cover. I then develop and deploy with that toolchain. This assures everyone uses the same versions of the tools.
To create the toolchain you need to install the packages and supporting executables in that directory. You also need to make sure that they are relocatable.
For example I currently use Django on RedHat. RedHat doesn't use the latest version of python, and many of the python libs I use rev more often than the repository maintainers pick them up. As a result there are often no RPMs for the latest software. I create a toolchain directory, compiled python on all the libs I needed into that directory. I then bundle it up into an RPM for deployment.
toolchain/
bin/
python
...
lib/
python2.7/
...
site-packages/
...
include/
...
I've ended up to a custom deploy.rb. Hoping I will be able to relase it as a gem that extends Capistrano (still not totally happy with it though)