Laravel suggestions when create a new project (Ubuntu)

Installing laravel/laravel (v5.4.23)

• Installing laravel/laravel (v5.4.23) Downloading: 100%

Created project in associations

php -r "file_exists('.env') || copy('.env.example', '.env');" Loading composer repositories with package information Updating dependencies (including require-dev)

• Installing symfony/css-selector (v3.3.0) Downloading: 100%

• Installing tijsverkoyen/css-to-inline-styles (2.2.0) Downloading: 100%

• Installing symfony/polyfill-mbstring (v1.3.0) Downloading: 100%

• Installing symfony/var-dumper (v3.3.0) Downloading: 100%

• Installing jakub-onderka/php-console-color (0.1) Downloading: 100%

• Installing jakub-onderka/php-console-highlighter (v0.3.2) Downloading: 100%

• Installing dnoegel/php-xdg-base-dir (0.1) Downloading: 100%

• Installing nikic/php-parser (v3.0.5) Downloading: 100%

• Installing psr/log (1.0.2) Downloading: 100%

• Installing symfony/debug (v3.3.0) Downloading: 100%

• Installing symfony/console (v3.3.0) Downloading: 100%

• Installing psy/psysh (v0.8.5) Downloading: 100%

• Installing vlucas/phpdotenv (v2.4.0) Downloading: 100%

• Installing symfony/routing (v3.3.0) Downloading: 100%

• Installing symfony/process (v3.3.0) Downloading: 100%

• Installing symfony/http-foundation (v3.3.0) Downloading: 100%

• Installing symfony/event-dispatcher (v3.3.0) Downloading: 100%

• Installing symfony/http-kernel (v3.3.0) Downloading: 100%

• Installing symfony/finder (v3.3.0) Downloading: 100%

• Installing swiftmailer/swiftmailer (v5.4.8) Downloading: 100%

• Installing paragonie/random_compat (v2.0.10) Downloading: 100%

• Installing ramsey/uuid (3.6.1) Downloading: 100%

• Installing symfony/translation (v3.3.0) Downloading: 100%

• Installing nesbot/carbon (1.22.1) Downloading: 100%

• Installing mtdowling/cron-expression (v1.2.0) Downloading: 100%

• Installing monolog/monolog (1.22.1) Downloading: 100%

• Installing league/flysystem (1.0.40) Downloading: 100%

• Installing erusev/parsedown (1.6.2) Downloading: 100%

• Installing doctrine/inflector (v1.1.0) Downloading: 100%

• Installing laravel/framework (v5.4.24) Downloading: 100%

• Installing laravel/tinker (v1.0.1) Downloading: 100%

• Installing fzaninotto/faker (v1.6.0) Downloading: 100%

• Installing hamcrest/hamcrest-php (v1.2.2) Downloading: 100%

• Installing mockery/mockery (0.9.9) Downloading: 100%

• Installing symfony/yaml (v3.3.0) Downloading: 100%

• Installing sebastian/version (2.0.1) Downloading: 100%

• Installing sebastian/resource-operations (1.0.0) Downloading: 100%

• Installing sebastian/recursion-context (2.0.0) Downloading: 100%

• Installing sebastian/object-enumerator (2.0.1) Downloading: 100%

• Installing sebastian/global-state (1.1.1) Downloading: 100%

• Installing sebastian/exporter (2.0.0) Downloading: 100%

• Installing sebastian/environment (2.0.0) Downloading: 100%

• Installing sebastian/diff (1.4.3) Downloading: 100%

• Installing sebastian/comparator (1.2.4) Downloading: 100%

• Installing doctrine/instantiator (1.0.5) Downloading: 100%

• Installing phpunit/php-text-template (1.2.1) Downloading: 100%

• Installing phpunit/phpunit-mock-objects (3.4.3) Downloading: 100%

• Installing phpunit/php-timer (1.0.9) Downloading: 100%

• Installing phpunit/php-file-iterator (1.4.2) Downloading: 100%

• Installing sebastian/code-unit-reverse-lookup (1.0.1) Downloading: 100%

• Installing phpunit/php-token-stream (1.4.11) Downloading: 100%

• Installing phpunit/php-code-coverage (4.0.8) Downloading: 100%

• Installing webmozart/assert (1.2.0) Downloading: 100%

• Installing phpdocumentor/reflection-common (1.0) Downloading: 100%

• Installing phpdocumentor/type-resolver (0.2.1) Downloading: 100%

• Installing phpdocumentor/reflection-docblock (3.1.1) Downloading: 100%

• Installing phpspec/prophecy (v1.7.0) Downloading: 100%

• Installing myclabs/deep-copy (1.6.1) Downloading: 100%

• Installing phpunit/phpunit (5.7.20) Downloading: 100%

symfony/var-dumper suggests installing ext-symfony_debug () symfony/console suggests installing symfony/filesystem () psy/psysh suggests installing ext-pdo-sqlite (The doc command requires SQLite to work.) psy/psysh suggests installing hoa/console (A pure PHP readline implementation. You'll want this if your PHP install doesn't already support readline or libedit.) symfony/routing suggests installing doctrine/annotations (For using the annotation loader) symfony/routing suggests installing symfony/config (For using the all-in-one router or any loader) symfony/routing suggests installing symfony/dependency-injection (For loading routes from a service) symfony/routing suggests installing symfony/expression-language (For using expression matching) symfony/event-dispatcher suggests installing symfony/dependency-injection () symfony/http-kernel suggests installing symfony/browser-kit () symfony/http-kernel suggests installing symfony/class-loader () symfony/http-kernel suggests installing symfony/config () symfony/http-kernel suggests installing symfony/dependency-injection () paragonie/random_compat suggests installing ext-libsodium (Provides a modern crypto API that can be used to generate random bytes.) ramsey/uuid suggests installing ircmaxell/random-lib (Provides RandomLib for use with the RandomLibAdapter) ramsey/uuid suggests installing ext-libsodium (Provides the PECL libsodium extension for use with the SodiumRandomGenerator) ramsey/uuid suggests installing ext-uuid (Provides the PECL UUID extension for use with the PeclUuidTimeGenerator and PeclUuidRandomGenerator) ramsey/uuid suggests installing moontoast/math (Provides support for converting UUID to 128-bit integer (in string form).) ramsey/uuid suggests installing ramsey/uuid-doctrine (Allows the use of Ramsey\Uuid\Uuid as Doctrine field type.) ramsey/uuid suggests installing ramsey/uuid-console (A console application for generating UUIDs with ramsey/uuid) symfony/translation suggests installing symfony/config () monolog/monolog suggests installing aws/aws-sdk-php (Allow sending log messages to AWS services like DynamoDB) monolog/monolog suggests installing doctrine/couchdb (Allow sending log messages to a CouchDB server) monolog/monolog suggests installing ext-amqp (Allow sending log messages to an AMQP server (1.0+ required)) monolog/monolog suggests installing ext-mongo (Allow sending log messages to a MongoDB server) monolog/monolog suggests installing graylog2/gelf-php (Allow sending log messages to a GrayLog2 server) monolog/monolog suggests installing mongodb/mongodb (Allow sending log messages to a MongoDB server via PHP Driver) monolog/monolog suggests installing php-amqplib/php-amqplib (Allow sending log messages to an AMQP server using php-amqplib) monolog/monolog suggests installing php-console/php-console (Allow sending log messages to Google Chrome) monolog/monolog suggests installing rollbar/rollbar (Allow sending log messages to Rollbar) monolog/monolog suggests installing ruflin/elastica (Allow sending log messages to an Elastic Search server) monolog/monolog suggests installing sentry/sentry (Allow sending log messages to a Sentry server) league/flysystem suggests installing league/flysystem-aws-s3-v2 (Allows you to use S3 storage with AWS SDK v2) league/flysystem suggests installing league/flysystem-aws-s3-v3 (Allows you to use S3 storage with AWS SDK v3) league/flysystem suggests installing league/flysystem-azure (Allows you to use Windows Azure Blob storage) league/flysystem suggests installing league/flysystem-cached-adapter (Flysystem adapter decorator for metadata caching) league/flysystem suggests installing league/flysystem-copy (Allows you to use Copy.com storage) league/flysystem suggests installing league/flysystem-eventable-filesystem (Allows you to use EventableFilesystem) league/flysystem suggests installing league/flysystem-rackspace (Allows you to use Rackspace Cloud Files) league/flysystem suggests installing league/flysystem-sftp (Allows you to use SFTP server storage via phpseclib) league/flysystem suggests installing league/flysystem-webdav (Allows you to use WebDAV storage) league/flysystem suggests installing league/flysystem-ziparchive (Allows you to use ZipArchive adapter) league/flysystem suggests installing spatie/flysystem-dropbox (Allows you to use Dropbox storage) laravel/framework suggests installing aws/aws-sdk-php (Required to use the SQS queue driver and SES mail driver (~3.0).) laravel/framework suggests installing doctrine/dbal (Required to rename columns and drop SQLite columns (~2.5).) laravel/framework suggests installing guzzlehttp/guzzle (Required to use the Mailgun and Mandrill mail drivers and the ping methods on schedules (~6.0).) laravel/framework suggests installing league/flysystem-aws-s3-v3 (Required to use the Flysystem S3 driver (~1.0).) laravel/framework suggests installing league/flysystem-rackspace (Required to use the Flysystem Rackspace driver (~1.0).) laravel/framework suggests installing nexmo/client (Required to use the Nexmo transport (~1.0).) laravel/framework suggests installing pda/pheanstalk (Required to use the beanstalk queue driver (~3.0).) laravel/framework suggests installing predis/predis (Required to use the redis cache and queue drivers (~1.0).) laravel/framework suggests installing pusher/pusher-php-server (Required to use the Pusher broadcast driver (~2.0).) laravel/framework suggests installing symfony/dom-crawler (Required to use most of the crawler integration testing tools (~3.2).) laravel/framework suggests installing symfony/psr-http-message-bridge (Required to psr7 bridging features (0.2.).) sebastian/global-state suggests installing ext-uopz () phpunit/phpunit-mock-objects suggests installing ext-soap () phpunit/php-code-coverage suggests installing ext-xdebug (^2.5.1) phpunit/phpunit suggests installing phpunit/php-invoker (~1.1) phpunit/phpunit suggests installing ext-xdebug () Writing lock file Generating autoload files

Illuminate\Foundation\ComposerScripts::postUpdate php artisan optimize Generating optimized class loader The compiled services file has been removed. php artisan key:generate Application key [base64:kqQcYmobZb22IPgvOWQ6/knz5LzBxFRUxY4JGqwKVsE=] set successfully.

-what should I do, although I'm using Ubuntu 16.04 & I installed the packages related to this issue, & it still exist.