Hi Reza,
> after build finished, I had two versions of Guix on my machine, the old one > which > is located in store, and the new one which is installed in `/usr/local/bin`. > > the problem is that the old instance of guix is detected as default on > my machine. What do you mean by “detected”? On any GNU system shell commands are mapped to executables by looking for matching executables in any of the directories listed in the PATH environment variable. If there are more than one executable of a name, the order of directories on PATH determines which of them is returned. -- Ricardo
