Немогу установить php5-dev. Package php5-dev is not available.

[oggy3010]

Здравствуйте. У меня Xubuntu 15.10. Устанавливаю php5-dev так:

Код: [Выделить]

sudo apt-get install php5-devНо в ответ получаю:
Reading package lists... Done
Building dependency tree       
Reading state information... Done
Package php5-dev is not available, but is referred to by another package.
This may mean that the package is missing, has been obsoleted, or
is only available from another source
However the following packages replace it:
  php5-json

E: Package 'php5-dev' has no installation candidate

Пожалуйста помогите установить php5-dev.

[jura12]

там написано установите вместо него php5-json