通过 Composer 安装 Laravel 时获取建议

Getting Suggestions while installing Laravel through Composer

提问by Nicole Javery

Since yesterday when I am creating a laravel project via

从昨天开始，当我通过

composer create-project --prefer-dist laravel/laravel project_name

I am getting these suggestion messages. Is this normal or have I messed something up.

我收到这些建议信息。这是正常的还是我搞砸了什么。

I have Xampp installed with PHP 7.0.1. Switched the PHP option in wamp from 7.0.1 to 5.x.x (there was only one option, dont remember the exact one) and since then I am getting these messages whether I create a new project or add a package via comopser require command. I switched PHP version back to 7.0.1 in Wamp. Uninstalled wamp, but teh messages were still there. Unsitalled xamp, re-installed it but still getting these messages.

我用 PHP 7.0.1 安装了 Xampp。将 wamp 中的 PHP 选项从 7.0.1 切换到 5.xx（只有一个选项，不记得确切的选项），从那时起，无论是创建新项目还是通过 comopser require 命令添加包，我都会收到这些消息。我在 Wamp 中将 PHP 版本切换回 7.0.1。卸载了 wamp，但消息仍然存在。Unsitalled xamp，重新安装它，但仍然收到这些消息。

symfony/var-dumper suggests installing ext-intl (To show region name in time zone dump)

symfony/var-dumper suggests installing ext-symfony_debug ()

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/var-dumper 建议安装 ext-intl（在时区转储中显示区域名称）

symfony/var-dumper 建议安装 ext-symfony_debug ()

symfony/routing 建议安装学说/注释（用于使用注释加载器）

symfony/routing 建议安装 symfony/config（用于使用一体式路由器或任何加载程序）

symfony/routing 建议安装 symfony/dependency-injection（用于从服务加载路由）

symfony/routing 建议安装 symfony/expression-language（用于使用表达式匹配）

and a long list like this

和一长串这样的

回答by Marcin Nabia?ek

This is normal. Some packages can have suggestions but they are not necessary for your Laravel application. Those packages might be useful in some cases but for sure are not required to run or create Laravel application so you can safely ignore those messages.

这是正常的。有些包可以有建议，但它们对于你的 Laravel 应用程序来说不是必需的。这些包在某些情况下可能很有用，但肯定不需要运行或创建 Laravel 应用程序，因此您可以安全地忽略这些消息。

I've just verified installing 5.5 version of framework and I'm getting the following list of suggestions:

我刚刚验证了安装 5.5 版本的框架，我得到了以下建议列表：

symfony/var-dumper suggests installing ext-intl (To show region name in time zone dump)
symfony/var-dumper suggests installing ext-symfony_debug ()
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/routing suggests installing symfony/yaml (For using the YAML loader)
paragonie/random_compat suggests installing ext-libsodium (Provides a modern crypto API that can be used to generate random bytes.)
symfony/event-dispatcher suggests installing symfony/dependency-injection ()
symfony/http-kernel suggests installing symfony/browser-kit ()
symfony/http-kernel suggests installing symfony/config ()
symfony/http-kernel suggests installing symfony/dependency-injection ()
symfony/console suggests installing symfony/lock ()
egulias/email-validator suggests installing ext-intl (PHP Internationalization Libraries are required to use the SpoofChecking validation)
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 ()
symfony/translation suggests installing symfony/yaml ()
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-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)
league/flysystem suggests installing srmklive/flysystem-dropbox-v2 (Allows you to use Dropbox storage for PHP 5 applications)
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 ext-pcntl (Required to use all features of the queue worker.)
laravel/framework suggests installing ext-posix (Required to use all features of the queue worker.)
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-cached-adapter (Required to use Flysystem caching (~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 (~3.0).)
laravel/framework suggests installing symfony/dom-crawler (Required to use most of the crawler integration testing tools (~3.3).)
laravel/framework suggests installing symfony/psr-http-message-bridge (Required to psr7 bridging features (~1.0).)
psy/psysh suggests installing ext-pcntl (Enabling the PCNTL extension makes PsySH a lot happier :))
psy/psysh suggests installing ext-posix (If you have PCNTL, you'll want the POSIX extension as well.)
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.)
filp/whoops suggests installing whoops/soap (Formats errors as SOAP responses)
sebastian/global-state suggests installing ext-uopz (*)
phpunit/phpunit-mock-objects suggests installing ext-soap (*)
phpunit/php-code-coverage suggests installing ext-xdebug (^2.5.5)
phpunit/phpunit suggests installing phpunit/php-invoker (^1.1)
phpunit/phpunit suggests installing ext-xdebug (*)

and there is no problem with this installation. For example monolog/monologsuggests installing ext-mongobut obviously I don't want it and I don't need it so it's safe to ignore this suggestion, same for all the others.

并且这个安装没有问题。例如，monolog/monolog建议安装，ext-mongo但显然我不想要它，也不需要它，因此可以安全地忽略此建议，其他所有建议也是如此。

回答by Sani Kamal

I've just verified installing 7.0.0 version of framework and I'm getting the following list of suggestions:

我刚刚验证了安装 7.0.0 版本的框架，我得到了以下建议列表：

C:\xampp\htdocs>composer create-project --prefer-dist laravel/laravel vcs-appoinment
Installing laravel/laravel (v7.0.0)
  - Installing laravel/laravel (v7.0.0): Downloading (100%)
Created project in vcs-appoinment
> @php -r "file_exists('.env') || copy('.env.example', '.env');"
Loading composer repositories with package information
Updating dependencies (including require-dev)
Package operations: 93 installs, 0 updates, 0 removals
  - Installing voku/portable-ascii (1.4.9): Downloading (100%)
  - Installing symfony/polyfill-ctype (v1.14.0): Loading from cache
  - Installing phpoption/phpoption (1.7.2): Loading from cache
  - Installing vlucas/phpdotenv (v4.1.1): Loading from cache
  - Installing symfony/css-selector (v5.0.5): Downloading (100%)
  - Installing tijsverkoyen/css-to-inline-styles (2.2.2): Loading from cache
  - Installing symfony/polyfill-mbstring (v1.14.0): Loading from cache
  - Installing symfony/var-dumper (v5.0.5): Downloading (100%)
  - Installing symfony/routing (v5.0.5): Downloading (100%)
  - Installing symfony/process (v5.0.5): Downloading (100%)
  - Installing symfony/polyfill-php72 (v1.14.0): Loading from cache
  - Installing symfony/polyfill-intl-idn (v1.14.0): Loading from cache
  - Installing symfony/mime (v5.0.5): Downloading (100%)
  - Installing psr/log (1.1.2): Loading from cache
  - Installing symfony/polyfill-php73 (v1.14.0): Loading from cache
  - Installing symfony/http-foundation (v5.0.5): Downloading (100%)
  - Installing psr/event-dispatcher (1.0.0): Downloading (100%)
  - Installing symfony/event-dispatcher-contracts (v2.0.1): Downloading (100%)
  - Installing symfony/event-dispatcher (v5.0.5): Downloading (100%)
  - Installing symfony/error-handler (v5.0.5): Downloading (100%)
  - Installing symfony/http-kernel (v5.0.5): Downloading (100%)
  - Installing symfony/finder (v5.0.5): Downloading (100%)
  - Installing psr/container (1.0.0): Loading from cache
  - Installing symfony/service-contracts (v2.0.1): Loading from cache
  - Installing symfony/console (v5.0.5): Downloading (100%)
  - Installing symfony/polyfill-iconv (v1.14.0): Loading from cache
  - Installing doctrine/lexer (1.2.0): Loading from cache
  - Installing egulias/email-validator (2.1.17): Loading from cache
  - Installing swiftmailer/swiftmailer (v6.2.3): Loading from cache
  - Installing paragonie/random_compat (v9.99.99): Loading from cache
  - Installing ramsey/uuid (3.9.3): Downloading (100%)
  - Installing psr/simple-cache (1.0.1): Loading from cache
  - Installing opis/closure (3.5.1): Loading from cache
  - Installing symfony/translation-contracts (v2.0.1): Loading from cache
  - Installing symfony/translation (v5.0.5): Downloading (100%)
  - Installing nesbot/carbon (2.31.0): Downloading (100%)
  - Installing monolog/monolog (2.0.2): Loading from cache
  - Installing league/flysystem (1.0.64): Loading from cache
  - Installing league/commonmark (1.3.1): Downloading (100%)
  - Installing dragonmantank/cron-expression (v2.3.0): Loading from cache
  - Installing doctrine/inflector (1.3.1): Loading from cache
  - Installing laravel/framework (v7.0.4): Downloading (100%)
  - Installing fideloper/proxy (4.3.0): Downloading (100%)
  - Installing asm89/stack-cors (1.3.0): Downloading (100%)
  - Installing fruitcake/laravel-cors (v1.0.4): Downloading (100%)
  - Installing ralouphie/getallheaders (3.0.3): Loading from cache
  - Installing psr/http-message (1.0.1): Loading from cache
  - Installing guzzlehttp/psr7 (1.6.1): Loading from cache
  - Installing guzzlehttp/promises (v1.3.1): Loading from cache
  - Installing guzzlehttp/guzzle (6.5.2): Loading from cache
  - Installing jakub-onderka/php-console-color (v0.2): Loading from cache
  - Installing jakub-onderka/php-console-highlighter (v0.4): Loading from cache
  - Installing nikic/php-parser (v4.3.0): Loading from cache
  - Installing dnoegel/php-xdg-base-dir (v0.1.1): Loading from cache
  - Installing psy/psysh (v0.9.12): Loading from cache
  - Installing laravel/tinker (v2.2.0): Loading from cache
  - Installing scrivo/highlight.php (v9.18.1.1): Downloading (100%)
  - Installing filp/whoops (2.7.1): Loading from cache
  - Installing facade/ignition-contracts (1.0.0): Loading from cache
  - Installing facade/flare-client-php (1.3.2): Downloading (100%)
  - Installing facade/ignition (2.0.1): Downloading (100%)
  - Installing fzaninotto/faker (v1.9.1): Loading from cache
  - Installing hamcrest/hamcrest-php (v2.0.0): Loading from cache
  - Installing mockery/mockery (1.3.1): Loading from cache
  - Installing nunomaduro/collision (v4.1.2): Downloading (100%)
  - Installing sebastian/version (2.0.1): Loading from cache
  - Installing sebastian/type (1.1.3): Loading from cache
  - Installing sebastian/resource-operations (2.0.1): Loading from cache
  - Installing sebastian/recursion-context (3.0.0): Loading from cache
  - Installing sebastian/object-reflector (1.1.1): Loading from cache
  - Installing sebastian/object-enumerator (3.0.3): Loading from cache
  - Installing sebastian/global-state (3.0.0): Loading from cache
  - Installing sebastian/exporter (3.1.2): Loading from cache
  - Installing sebastian/environment (4.2.3): Loading from cache
  - Installing sebastian/diff (3.0.2): Loading from cache
  - Installing sebastian/comparator (3.0.2): Loading from cache
  - Installing phpunit/php-timer (2.1.2): Loading from cache
  - Installing phpunit/php-text-template (1.2.1): Loading from cache
  - Installing phpunit/php-file-iterator (2.0.2): Loading from cache
  - Installing theseer/tokenizer (1.1.3): Loading from cache
  - Installing sebastian/code-unit-reverse-lookup (1.0.1): Loading from cache
  - Installing phpunit/php-token-stream (3.1.1): Loading from cache
  - Installing phpunit/php-code-coverage (7.0.10): Loading from cache
  - Installing doctrine/instantiator (1.3.0): Loading from cache
  - Installing phpdocumentor/reflection-common (2.0.0): Loading from cache
  - Installing phpdocumentor/type-resolver (1.1.0): Downloading (100%)
  - Installing webmozart/assert (1.7.0): Loading from cache
  - Installing phpdocumentor/reflection-docblock (5.1.0): Downloading (100%)
  - Installing phpspec/prophecy (v1.10.3): Downloading (100%)
  - Installing phar-io/version (2.0.1): Loading from cache
  - Installing phar-io/manifest (1.0.3): Loading from cache
  - Installing myclabs/deep-copy (1.9.5): Loading from cache
  - Installing phpunit/phpunit (8.5.2): Loading from cache
voku/portable-ascii suggests installing ext-intl (Use Intl for transliterator_transliterate() support)
symfony/var-dumper suggests installing ext-intl (To show region name in time zone dump)
symfony/routing suggests installing symfony/config (For using the all-in-one router or any loader)
symfony/routing suggests installing symfony/yaml (For using the YAML loader)
symfony/routing suggests installing symfony/expression-language (For using expression matching)
symfony/routing suggests installing doctrine/annotations (For using the annotation loader)
symfony/polyfill-intl-idn suggests installing ext-intl (For best performance)
symfony/event-dispatcher suggests installing symfony/dependency-injection
symfony/http-kernel suggests installing symfony/browser-kit
symfony/http-kernel suggests installing symfony/config
symfony/http-kernel suggests installing symfony/dependency-injection
symfony/service-contracts suggests installing symfony/service-implementation
symfony/console suggests installing symfony/lock
egulias/email-validator suggests installing ext-intl (PHP Internationalization Libraries are required to use the SpoofChecking validation)
swiftmailer/swiftmailer suggests installing ext-intl (Needed to support internationalized email addresses)
swiftmailer/swiftmailer suggests installing true/punycode (Needed to support internationalized email addresses, if ext-intl is not installed)
paragonie/random_compat suggests installing ext-libsodium (Provides a modern crypto API that can be used to generate random bytes.)
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-console (A console application for generating UUIDs with ramsey/uuid)
ramsey/uuid suggests installing ramsey/uuid-doctrine (Allows the use of Ramsey\Uuid\Uuid as Doctrine field type.)
ramsey/uuid suggests installing paragonie/random-lib (Provides RandomLib for use with the RandomLibAdapter)
symfony/translation suggests installing symfony/config
symfony/translation suggests installing symfony/yaml
monolog/monolog suggests installing graylog2/gelf-php (Allow sending log messages to a GrayLog2 server)
monolog/monolog suggests installing doctrine/couchdb (Allow sending log messages to a CouchDB server)
monolog/monolog suggests installing ruflin/elastica (Allow sending log messages to an Elastic Search server)
monolog/monolog suggests installing elasticsearch/elasticsearch (Allow sending log messages to an Elasticsearch server via official client)
monolog/monolog suggests installing php-amqplib/php-amqplib (Allow sending log messages to an AMQP server using php-amqplib)
monolog/monolog suggests installing ext-amqp (Allow sending log messages to an AMQP server (1.0+ required))
monolog/monolog suggests installing ext-mongodb (Allow sending log messages to a MongoDB server (via driver))
monolog/monolog suggests installing mongodb/mongodb (Allow sending log messages to a MongoDB server (via library))
monolog/monolog suggests installing aws/aws-sdk-php (Allow sending log messages to AWS services like DynamoDB)
monolog/monolog suggests installing rollbar/rollbar (Allow sending log messages to Rollbar)
monolog/monolog suggests installing php-console/php-console (Allow sending log messages to Google Chrome)
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-azure (Allows you to use Windows Azure Blob storage)
league/flysystem suggests installing league/flysystem-webdav (Allows you to use WebDAV storage)
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 spatie/flysystem-dropbox (Allows you to use Dropbox storage)
league/flysystem suggests installing srmklive/flysystem-dropbox-v2 (Allows you to use Dropbox storage for PHP 5 applications)
league/flysystem suggests installing league/flysystem-cached-adapter (Flysystem adapter decorator for metadata caching)
league/flysystem suggests installing league/flysystem-sftp (Allows you to use SFTP server storage via phpseclib)
league/flysystem suggests installing league/flysystem-ziparchive (Allows you to use ZipArchive adapter)
laravel/framework suggests installing ext-memcached (Required to use the memcache cache driver.)
laravel/framework suggests installing ext-pcntl (Required to use all features of the queue worker.)
laravel/framework suggests installing ext-posix (Required to use all features of the queue worker.)
laravel/framework suggests installing ext-redis (Required to use the Redis cache and queue drivers.)
laravel/framework suggests installing aws/aws-sdk-php (Required to use the SQS queue driver, DynamoDb failed job storage and SES mail driver (^3.0).)
laravel/framework suggests installing doctrine/dbal (Required to rename columns and drop SQLite columns (^2.6).)
laravel/framework suggests installing league/flysystem-aws-s3-v3 (Required to use the Flysystem S3 driver (^1.0).)
laravel/framework suggests installing league/flysystem-cached-adapter (Required to use the Flysystem cache (^1.0).)
laravel/framework suggests installing league/flysystem-sftp (Required to use the Flysystem SFTP driver (^1.0).)
laravel/framework suggests installing moontoast/math (Required to use ordered UUIDs (^1.1).)
laravel/framework suggests installing nyholm/psr7 (Required to use PSR-7 bridging features (^1.2).)
laravel/framework suggests installing pda/pheanstalk (Required to use the beanstalk queue driver (^4.0).)
laravel/framework suggests installing pusher/pusher-php-server (Required to use the Pusher broadcast driver (^4.0).)
laravel/framework suggests installing symfony/cache (Required to PSR-6 cache bridge (^5.0).)
laravel/framework suggests installing symfony/psr-http-message-bridge (Required to use PSR-7 bridging features (^2.0).)
laravel/framework suggests installing wildbit/swiftmailer-postmark (Required to use Postmark mail driver (^3.0).)
guzzlehttp/psr7 suggests installing zendframework/zend-httphandlerrunner (Emit PSR-7 responses)
guzzlehttp/guzzle suggests installing ext-intl (Required for Internationalized Domain Name (IDN) support)
psy/psysh suggests installing ext-pcntl (Enabling the PCNTL extension makes PsySH a lot happier :))
psy/psysh suggests installing ext-posix (If you have PCNTL, you'll want the POSIX extension as well.)
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.)
filp/whoops suggests installing whoops/soap (Formats errors as SOAP responses)
facade/ignition suggests installing laravel/telescope (^2.0)
sebastian/global-state suggests installing ext-uopz (*)
sebastian/environment suggests installing ext-posix (*)
phpunit/php-code-coverage suggests installing ext-xdebug (^2.7.2)
phpunit/phpunit suggests installing phpunit/php-invoker (^2.0.0)
phpunit/phpunit suggests installing ext-soap (*)
phpunit/phpunit suggests installing ext-xdebug (*)
Writing lock file
Generating optimized autoload files
> Illuminate\Foundation\ComposerScripts::postAutoloadDump
> @php artisan package:discover --ansi
Discovered Package: [32mfacade/ignition[39m
Discovered Package: [32mfideloper/proxy[39m
Discovered Package: [32mfruitcake/laravel-cors[39m
Discovered Package: [32mlaravel/tinker[39m
Discovered Package: [32mnesbot/carbon[39m
Discovered Package: [32mnunomaduro/collision[39m
[32mPackage manifest generated successfully.[39m
> @php artisan key:generate --ansi
[32mApplication key set successfully.[39m

and there is no problem with this installation.

并且这个安装没有问题。