Install libnpth0 by entering the following commands in the terminal:
sudo apt update sudo apt install libnpth0
replacement for GNU Pth using system threads
nPth is a non-preemptive threads implementation using an API very similar to the one known from GNU Pth. It has been designed as a replacement of GNU Pth for non-ancient operating systems. In contrast to GNU Pth it is based on the system's standard threads implementation. Thus nPth allows the use of libraries which are not compatible to GNU Pth.