Composer Remove Packages

Hi guys,

after I add yii2/mongodb composer remove some of packages.why?

D:\wamp\www\AppEngine>php composer.phar require --prefer-dist yiisoft/

yii2-mongodb "*"

./composer.json has been updated

Loading composer repositories with package information

Updating dependencies (including require-dev)

  - Removing yiisoft/yii2 (dev-master 8d2fa00)

  - Installing yiisoft/yii2-dev (dev-master 8984930)

    Downloading: 100%

  - Removing yiisoft/yii2-bootstrap (dev-master 58421f9)

  - Removing yiisoft/yii2-debug (dev-master 6fcb473)

  - Removing yiisoft/yii2-gii (dev-master 2735ad6)

  - Removing yiisoft/yii2-swiftmailer (dev-master 21062fb)

  - Removing yiisoft/yii2-codeception (dev-master 6468a92)

Writing lock file

Generating autoload files

Looks like you changed your composer.json before and did not run composer update after that.

can you show composer.json?


 php composer.phar create-project --prefer-dist --stability=dev yiisoft/yii2-app-basic AppEngine 

I updated it and then

 php composer.phar require --prefer-dist yiisoft/yii2-mongodb "*" 

This is composer.json:


	"name": "yiisoft/yii2-app-basic",

	"description": "Yii 2 Basic Application Template",

	"keywords": ["yii", "framework", "basic", "application template"],

	"homepage": "",

	"type": "project",

	"license": "BSD-3-Clause",

	"support": {

		"issues": "",

		"forum": "",

		"wiki": "",

		"irc": "irc://",

		"source": ""


	"minimum-stability": "dev",

	"require": {

		"php": ">=5.4.0",

		"yiisoft/yii2": "*",

		"yiisoft/yii2-bootstrap": "*",

		"yiisoft/yii2-swiftmailer": "*",

		"yiisoft/yii2-mongodb": "*"


	"require-dev": {

		"yiisoft/yii2-codeception": "*",

		"codeception/codeception": "*",

		"codeception/specify": "*",

		"yiisoft/yii2-debug": "*",

		"yiisoft/yii2-gii": "*"


	"scripts": {

		"post-create-project-cmd": [




	"config": {

		"process-timeout": 1800


	"extra": {

		"writable": [




		"executable": [





Found the problem. mongodb extension does not seem to be available on packagist. We’ll fix it.

Must have been some temporary issue with packagist. Was not able to see the package minutes ago but now it is there:

Found the real cause of the problem:

Looks like you do not have the mongodb php extension installed that is required by yii2-mongodb package.

Composer now falls back to installing yii2-dev instead which provides yii2-mongodb without this dependency :)

To fix this, install the mongodb php extension and run composer update

Yes,It’s worked.