Question

我收到以下错误，有人可以描述吗？我使用Laravel 4和composer作为依赖管理器。我尝试了几次这样做，在各种论坛上搜索并没有解决这个问题。如果有人能够研究这个问题并建议解决方案，我将不胜感激。

Your requirements could not be resolved to an installable set of packages.
Problem 1
- maatwebsite/excel v1.3.7 requires phpoffice/phpexcel ~1.8.0 -> satisfiable by phpoffice/phpexcel[1.8.1, 1.8.0].
- maatwebsite/excel 1.3.2 requires phpoffice/phpexcel ~1.8.0 -> satisfiable by phpoffice/phpexcel[1.8.1, 1.8.0].
- maatwebsite/excel v1.3.0 requires phpoffice/phpexcel ~1.8.0 -> satisfiable by phpoffice/phpexcel[1.8.1, 1.8.0].
- maatwebsite/excel v1.3.1 requires phpoffice/phpexcel ~1.8.0 -> satisfiable by phpoffice/phpexcel[1.8.1, 1.8.0].
- maatwebsite/excel v1.3.3 requires phpoffice/phpexcel ~1.8.0 -> satisfiable by phpoffice/phpexcel[1.8.1, 1.8.0].
- maatwebsite/excel v1.3.4 requires phpoffice/phpexcel ~1.8.0 -> satisfiable by phpoffice/phpexcel[1.8.1, 1.8.0].
- maatwebsite/excel v1.3.5 requires phpoffice/phpexcel ~1.8.0 -> satisfiable by phpoffice/phpexcel[1.8.1, 1.8.0].
- maatwebsite/excel v1.3.6 requires phpoffice/phpexcel ~1.8.0 -> satisfiable by phpoffice/phpexcel[1.8.1, 1.8.0].
- maatwebsite/excel v1.3.7 requires phpoffice/phpexcel ~1.8.0 -> satisfiable by phpoffice/phpexcel[1.8.1, 1.8.0].
- phpoffice/phpexcel 1.8.1 requires ext-xml * -> the requested PHP extension xml is missing from your system.
- phpoffice/phpexcel 1.8.0 requires ext-xml * -> the requested PHP extension xml is missing from your system.
- phpoffice/phpexcel 1.8.1 requires ext-xml * -> the requested PHP extension xml is missing from your system.

- Installation request for maatwebsite/excel ~1.3 -> satisfiable by maatwebsite/excel[1.3.2, v1.3.0, v1.3.1, v1.3.3, v1.3.4, v1.3.5, v1.3.6, v1.3.7].

  To enable extensions, verify that they are enabled in those .ini files:
    - /etc/php.ini
    - /etc/php.d/20-bz2.ini
    - /etc/php.d/20-calendar.ini
    - /etc/php.d/20-ctype.ini
    - /etc/php.d/20-curl.ini
    - /etc/php.d/20-exif.ini
    - /etc/php.d/20-fileinfo.ini
    - /etc/php.d/20-ftp.ini
    - /etc/php.d/20-gettext.ini
    - /etc/php.d/20-iconv.ini
    - /etc/php.d/20-mcrypt.ini
    - /etc/php.d/20-mysqlnd.ini
    - /etc/php.d/20-pdo.ini
    - /etc/php.d/20-phar.ini
    - /etc/php.d/20-sockets.ini
    - /etc/php.d/20-sqlite3.ini
    - /etc/php.d/20-tokenizer.ini
    - /etc/php.d/30-mysql.ini
    - /etc/php.d/30-mysqli.ini
    - /etc/php.d/30-pdo_mysql.ini
    - /etc/php.d/30-pdo_sqlite.ini
    - /etc/php.d/40-json.ini
    - /etc/php.d/40-zip.ini

这个问题很老，我是stackoverflow的新手。我以非常错误的格式发布了这个，这就是为什么我得到了-1的声誉。这个问题已经解决，我正在编辑这个问题只是为了很好地格式化这个问题并提高可读性。

Answer 1

错误说明：the requested PHP extension xml is missing from your system

主机上未安装或禁用PHP-XML扩展。您需要先启用或安装扩展程序，然后才能使用需要它的程序包。

如果已安装，请启用php.ini文件中的扩展名。如果未安装，请根据操作系统的需要安装扩展。

要让Ubuntu安装此扩展程序，您需要运行sudo apt-get install php-xml，对于Google需要安装的其他操作系统。

Answer 2

在我的情况下const obj = { "a": [5,1,2], "b": [4,0,3], "c": [1,1,4] }; const convert = (obj) => { let res = []; const keys = Object.keys(obj); if (!keys.length) return []; for (let i = 0; i < obj[keys[0]].length; i++) { let nextObj = {}; keys.forEach(key => { nextObj[key] = obj[key][i]; }); res.push(nextObj); } return res; } console.log(convert(obj))已经安装。

php-xml

所以，我必须安装root@shashank-dbserver /# apt-get install php-xml Reading package lists... Done Building dependency tree Reading state information... Done php-xml is already the newest version. php-xml set to manually installed.代替＆amp;我的错误消失了。

php5.6-xml

在此之后，root@shashank-dbserver /# apt-get install php5.6-xml Reading package lists... Done Building dependency tree Reading state information... Done The following package was automatically installed and is no longer required: zlib1g-dev Use 'apt-get autoremove' to remove it. The following NEW packages will be installed: php5.6-xml命令运行得很好。

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2 个答案: