How do I restore LIBZ So 1?

3 Answers

Visit packages.ubuntu.com.
Enter missed file name in Search the contents of packages (in our case libz.so.1.2.8 ) specifying target Distribution ( xenial in our case) and CPU Architecture ( amd64 ):
Click Search, it will show the results page:
Then click on the zlib1g link.
In Download section click amd64 :

What package provides LIBZ So 1?

File	Packages
/lib/powerpc64le-linux-gnu/libz.so.1	zlib1g [ppc64el]
/lib/x86_64-linux-gnu/libz.so.1	zlib1g [amd64]
/usr/lib32/libz.so.1	lib32z1 [amd64]
/usr/lib64/libz.so.1	lib64z1 [powerpc, i386]

What is zlib1g Dev?

zlib is a library implementing the deflate compression method found in gzip and PKZIP. This package includes the development support files.

What is libbz2 Dev?

high-quality block-sorting file compressor library – development. Static libraries and include files for the bzip2 compressor library. bzip2 is a freely available, patent free, data compressor. bzip2 compresses files using the Burrows-Wheeler block-sorting text compression algorithm, and Huffman coding.

What is Libpng Dev?

PNG library – development (version 1.6) libpng is a library implementing an interface for reading and writing PNG (Portable Network Graphics) format files. This package contains the header and development files needed to build programs and packages using libpng.

What is libpng used for?

libpng is the official Portable Network Graphics (PNG) reference library (originally called pnglib). It is a platform-independent library that contains C functions for handling PNG images. It supports almost all of PNG’s features, is extensible, and has been widely used and tested for over 23 years.

What is PNG H?

h header file that tracks what features were enabled or disabled when libpng was built. On the other hand, they no longer internally include the zlib. h header file, so applications that formerly depended on png. h to provide that will now need to include it explicitly. Complete differences relative to libpng 1.4.