Laravel-用sqlite找不到驱动程序异常

我正在 Ubuntu 17.4 上使用 Laravel .当我键入以下命令时:php artisan migrate:refresh我遇到以下问题:

I'm using Laravel on Ubuntu 17.4. When I type this command: php artisan migrate:refresh I get the following issue:

[Illuminate \ Database \ QueryException] 找不到驱动程序(SQL:从sqlite_master中选择*，其中type ='table'且name = migrations)
[PDOException]
找不到驱动程序

[Illuminate\Database\QueryException] could not find driver (SQL: select * from sqlite_master where type = 'table' and name = migrations)
[PDOException]
could not find driver

我试图通过运行sudo apt-get install php7.1-sqlite3来安装sqlite驱动程序，但是出现了以下问题:

I tried to install sqlite driver by running sudo apt-get install php7.1-sqlite3 but I got the following issue:

正在阅读包裹清单...已完成
构建依赖关系树
正在读取状态信息...完成
E:无法找到软件包php7.1-sqlite3
E:无法通过glob'php7.1-sqlite3'找到任何软件包.
E:找不到正则表达式'php7.1-sqlite3'的任何软件包.

Reading package lists... Done
Building dependency tree
Reading state information... Done
E: Unable to locate package php7.1-sqlite3
E: Couldn't find any package by glob 'php7.1-sqlite3'
E: Couldn't find any package by regex 'php7.1-sqlite3'.

我的php版本也是:PHP 7.1.5-1+deb.sury.org~yakkety+2.

Also my php version is: PHP 7.1.5-1+deb.sury.org~yakkety+2.