I have faced the same issue and its like the system was throwing the below error
Magento ver. 2.2.0-dev – A technical problem with the server created an error. Try again to continue what you were doing. If the problem persists, try again later
To fix the issue I have deployed the static content again and done reindexing and cache clearing
php bin/magento setup:static-content:deploy
php bin/magento indexer:reindex
php bin/magento cache:flush
I have faced the same issue and its like the css,js and images were not loading after Magento 2 installation.
Below commands were issued from command line and that solved the issue.
php bin/magento setup:static-content:deploy
php bin/magento indexer:reindex
php bin/magento cache:flush
“{“path”:”app/etc”}” writable directory permission.
“{“path”:”var”}” writable directory permission.
“{“path”:”pub/media”}” writable directory permission.
“{“path”:”pub/static”}” writable directory permission.
“{“path”:”generated”}” writable directory permission.
PHP Extension curl.
PHP Extension dom.
PHP Extension iconv.
PHP Extension mcrypt.
PHP Extension simplexml.
PHP Extension spl.
PHP Extension xsl.
PHP Extension intl.
PHP Extension mbstring.
PHP Extension ctype.
PHP Extension hash.
PHP Extension openssl.
PHP Extension pdo_mysql.
PHP Extension soap.
PHP Extension zip.
PHP Extension phar.
PHP Extension xmlwriter.
PHP Extension libxml.
PHP Extension pcre.
PHP Extension gd.
Typically, cache:clean deletes all enabled cache related to magento whereas cache:flush deletes the whole cache storage, whether its magento cache or any third party cache (whether enabled or disabled)
They are under vendor/magento folder.
In order to do this, open your terminal and go to the Magento 2 root. From there you should run the following command:
php bin/magento deploy:mode:set developer
We use Composer for dependency management. Composer enables us to manage the Magento components and their dependencies.
As an integrator, you want to manage each of your Magento core components and third-party components using the Component Manager and System Upgrade.
To do so, you start by creating a Composer project from our metapackage. The metapackage installs each component so it can be centrally managed after installation.
Composer provides you with the following advantages:
Enables you to reuse third-party libraries without bundling them with source code
Component-based architecture with robust dependency management
Manages dependencies to reduce extension conflicts and compatibility issues
Versioned dependencies
Semantic versioning
Supports the PHP Framework Interoperability standard
Architecture, testing, and performance. Changes in these areas empower developers to write better-quality code with higher performance and stability. Additionally, the re-architecture will provide developers with a more streamlined approach to customizations.