Composer：在服务器上找不到的包，但在本地计算机上找不到

I have two identical composer.json on my local windows machine and my linux dev server:

"name": "yiisoft/yii2-app-advanced",
"description": "Yii 2 Advanced Project Template",
"keywords": ["yii2", "framework", "advanced", "project template"],
"homepage": "http://www.yiiframework.com/",
"type": "project",
"license": "BSD-3-Clause",
"support": {
    "issues": "https://github.com/yiisoft/yii2/issues?state=open",
    "forum": "http://www.yiiframework.com/forum/",
    "wiki": "http://www.yiiframework.com/wiki/",
    "irc": "irc://irc.freenode.net/yii",
    "source": "https://github.com/yiisoft/yii2"
},
"minimum-stability": "stable",
"require": {
    "php": ">=5.4.0",
    "yiisoft/yii2": "~2.0.6",
    "yiisoft/yii2-bootstrap": "~2.0.0",
    "yiisoft/yii2-swiftmailer": "~2.0.0",
    "yiisoft/yii2-jui": "^2.0",
    "kartik-v/yii2-widget-select2": "@dev",
    "2amigos/yii2-file-upload-widget": "~1.0",
    "cozumel/yii2-image-cropper": "*",
    "yii2mod/yii2-ion-slider": "*"
},
"require-dev": {
    "yiisoft/yii2-debug": "~2.0.0",
    "yiisoft/yii2-gii": "~2.0.0",
    "yiisoft/yii2-faker": "~2.0.0",

    "codeception/base": "^2.2.3",
    "codeception/verify": "~0.3.1"
},
"config": {
    "process-timeout": 1800,
    "fxp-asset":{
        "installer-paths": {
            "npm-asset-library": "vendor/npm",
            "bower-asset-library": "vendor/bower"
        }
    }
}

On my local machine, I can update composer without any problems:

Loading composer repositories with package information
Updating dependencies (including require-dev)
Package operations: 0 installs, 4 updates, 0 removals
  - Updating yiisoft/yii2-debug (2.0.9 => 2.0.10): Downloading (100%)
  - Updating bower-asset/blueimp-file-upload (v9.19.0 => v9.19.1): Downloading (100%)
  - Updating phpspec/prophecy (v1.7.0 => v1.7.2): Downloading (100%)
  - Updating kartik-v/yii2-widget-select2 dev-master (a129c66 => 2c3f475):  Checking out 2c3f47527c
Writing lock file

Generating autoload files

Yet on my server, I get the error that the packages could not be found:

$ composer update
You are running composer with xdebug enabled. This has a major impact on runtime performance. See https://getcomposer.org/xdebug
Loading composer repositories with package information
Updating dependencies (including require-dev)
Your requirements could not be resolved to an installable set of packages.

  Problem 1
    - yiisoft/yii2 2.0.x-dev requires bower-asset/punycode 1.3.* -> no matching package found.
    - yiisoft/yii2 2.0.9 requires bower-asset/jquery 2.2.*@stable | 2.1.*@stable | 1.11.*@stable | 1.12.*@stable -> no matching package found.
    - yiisoft/yii2 2.0.8 requires bower-asset/jquery 2.2.*@stable | 2.1.*@stable | 1.11.*@stable -> no matching package found.
    - yiisoft/yii2 2.0.7 requires bower-asset/jquery 2.2.*@stable | 2.1.*@stable | 1.11.*@stable -> no matching package found.
    - yiisoft/yii2 2.0.6 requires bower-asset/jquery 2.1.*@stable | 1.11.*@stable -> no matching package found.
    - yiisoft/yii2 2.0.12 requires bower-asset/jquery 2.2.*@stable | 2.1.*@stable | 1.11.*@stable | 1.12.*@stable -> no matching package found.
    - yiisoft/yii2 2.0.11.2 requires bower-asset/jquery 2.2.*@stable | 2.1.*@stable | 1.11.*@stable | 1.12.*@stable -> no matching package found.
    - yiisoft/yii2 2.0.11.1 requires bower-asset/jquery 2.2.*@stable | 2.1.*@stable | 1.11.*@stable | 1.12.*@stable -> no matching package found.
    - yiisoft/yii2 2.0.11 requires bower-asset/jquery 2.2.*@stable | 2.1.*@stable | 1.11.*@stable | 1.12.*@stable -> no matching package found.
    - yiisoft/yii2 2.0.10 requires bower-asset/jquery 2.2.*@stable | 2.1.*@stable | 1.11.*@stable | 1.12.*@stable -> no matching package found.
    - Installation request for yiisoft/yii2 ~2.0.6 -> satisfiable by yiisoft/yii2[2.0.10, 2.0.11, 2.0.11.1, 2.0.11.2, 2.0.12, 2.0.6, 2.0.7, 2.0.8, 2.0.9, 2.0.x-dev].

Potential causes:
 - A typo in the package name
 - The package is not available in a stable-enough version according to your minimum-stability setting
   see <https://getcomposer.org/doc/04-schema.md#minimum-stability> for more details.

Read <https://getcomposer.org/doc/articles/troubleshooting.md> for further common problems.

After quite some hours of searching around, I still don't have any clue where to even begin with. Any ideas?