Magento 2 installation: requirements could not be resolved [closed] - composer-php

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Following step 4 in Get Magento of this guide, I ran into the following error:
Your requirements could not be resolved to an installable set of packages.
Followed by a list of missing extensions (such as gd and dom).
How can I install all of those extensions?

Composer is not a package manager, it is a dependency manager, so it will not install native php packages. You need to install required packages according to your version of PHP and OS. Instructions for Centos are here and that for Ubuntu is here

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Installing a package with default value when the given version does not exist using ansible apt [closed]

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I am trying to install a list of packages using ansible apt module. The list includes package name and version to be installed. Some packages are not updated as the given version is not found in cache. I would like to install the failed packages with the latest version available for them. Can someone please help me with the playboook code ?
I tried listing out all the failed packages manually and created another task to install them to the latest version. This worked fine for some VM's but it is not sustainable for the long run.

How can I install the Go compiler support for VS Code on fedora 34? [closed]

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Would you tell me how to install Go compiler support for VS Code in fedora 34?
You install first go as per the instructions on the fedora website.
sudo dnf install golang
After that you can search for the golang extension inside vscode and install that.

Xcode broken on macOS 11.1 [closed]

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Your Xcode does not support macOS 11.1. It is either outdated or was modified. Please update your Xcode or delete it if no updates are available.
Every time I try to install brew install k3d ,this happens .
I'm using macOS 11.1 with Xocde 12.2.

The class MatplotlibDrawer needs pylatexenc. to install, run "pip install pylatexenc" [closed]

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I am using colab for qiskit and even after installing pylatexenc using pip this still comes as an error, I also used !pip.Here's the full pic
I think that you probably need to restart the kernel in jupyter and rerun the notebook.
The way optional dependency detection looks like it is done there is that when the module is first imported it checks if pylatexenc is installed or not. If it's not installed it sets a flag to say it's not present. Then when you go to use a function in the module if that flag is set it raises that import error. Without restarting the kernel that flag will still be set so it doesn't check again if pylatexenc is installed again on the 2nd call.
Try installing pylatexenc
using the following command.
pip install pylatexenc

How to package ruby application [closed]

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How do you package a ruby app so all the dependencies are already packaged in the app and does not require the user to be messing about with bundler or rvm.
Use "require" for all the dependencies you need in an ordered manner.
However the require only works if the "required" package is installed on the machine. from what I know there is no automated tool .. and how do you know even "ruby" is installed (non-MacOS).
If you don't want user to "mess" with installing anything -- then you have to write a piece of code that checks the presence of dependencies and installs them if needed. .. best is to write the install script in install script/program with bash etc. or in ruby inline with something with try/end syntax.

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