Tôi cần cài đặt Tesseract, cần cài đặt autoconf autoake libtool, tuy nhiên tôi đã gặp lỗi như sau:
sahu@sahu-desktop:/$ sudo apt-get install autoconf
Reading package lists... Done
Building dependency tree
Reading state information... Done
Package autoconf 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
E: Package 'autoconf' has no installation candidate
Vậy xin hãy giúp tôi.