error [UnexpectedValueException]

durpoy hocam boyledir
{
"name": "flarum/flarum",
"description": "Delightfully simple forum software.",
"type": "project",
"keywords": ["forum", "discussion"],
"homepage": "https://flarum.org/",
"license": "MIT",
"authors": [
{
"name": "Toby Zerner",
"email": "toby.zerner@gmail.com"
},
{
"name": "Franz Liedke",
"email": "franz@develophp.org"
}
],
"support": {
"issues": "https://github.com/flarum/core/issues",
"source": "https://github.com/flarum/flarum",
"docs": "https://flarum.org/docs/"
},
"require": {
"flarum/core": "^1.0",
"flarum/approval": "^*",
"flarum/auth-facebook": "^*",
"flarum/auth-github": "^*",
"flarum/auth-twitter": "^*",
"flarum/bbcode": "^*",
"flarum/emoji": "^*",
"flarum/lang-english": "^*",
"flarum/flags": "^*",
"flarum/likes": "^*",
"flarum/lock": "^*",
"flarum/markdown": "^*",
"flarum/mentions": "^*",
"flarum/pusher": "^*",
"flarum/statistics": "^*",
"flarum/sticky": "^*",
"flarum/subscriptions": "^*",
"flarum/suspend": "^*",
"flarum/tags": "^*"
},
"config": {
"preferred-install": "dist",
"sort-packages": true
},
"minimum-stability": "beta",
"prefer-stable": true,
"require-dev": {
"composer/composer": "^1.9"
}
}

durpoy eve oyle yapdim hall olundu ama simdi boyle hata aliyorum