import_interpolation: command not found

Maybe Your $PATH variable doesn't contain the default paths? echo $PATH should give something like:

[root@server ~]# echo $PATH
/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin

If it's empty, You may set the PATH variable with this command

export PATH="/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin"

On Debian possible default full paths are:

/usr/bin/import_interpolation - from package: libpinyin-utils

You may install the required package with command apt-get install {package}

Error in other languages:
import_interpolation: bevel nie gevind nie
import_interpolation: comandă negăsită
import_interpolation: comando não encontrado
import_interpolation: commande introuvable
import_interpolation: command not found
import_interpolation: käsku ei ole
import_interpolation: không tìm thấy lệnh
import_interpolation: komanda nerasta
import_interpolation: Kommando nicht gefunden.
import_interpolation: kommandot finns inte
import_interpolation: komut yok
import_interpolation: nie znaleziono polecenia
import_interpolation: níor aimsíodh an t-ordú
import_interpolation: no se encontró la orden
import_interpolation: no s'ha trobat l'ordre
import_interpolation: opdracht niet gevonden
import_interpolation: parancs nem található
import_interpolation: perintah tidak ditemukan
import_interpolation: príkaz nenájdený
import_interpolation: příkaz nenalezen
import_interpolation: команда не найдена
import_interpolation: командата не е открита
import_interpolation: 命令找不到
import_interpolation: コマンドが見つかりません