[Divesh]

C++ linker for the host machine: /usr/bin/mpicxx ld.bfd 2.34
Host machine cpu family: x86_64
Host machine cpu: x86_64
Program python3 found: YES (/usr/bin/python3)
Found pkg-config: /usr/bin/pkg-config (0.29.1)
Run-time dependency MPI for c found: YES 4.0.3
Run-time dependency MPI for cpp found: YES 4.0.3
Message: Extracting boost ...

configuration....then I got this error!

:~/SU2$ ./ninja -C build install
ninja: Entering directory `build'
[721/722] Installing files.
Installing SU2_CFD/src/SU2_CFD to /usr/local/bin
Installation failed due to insufficient permissions.
Attempting to use polkit to gain elevated privileges...
Error getting authority: Error initializing authority: Could not connect: No such file or directory
FAILED: meson-install
/usr/bin/python3 /home/divesh/SU2/meson.py install --no-rebuild
ninja: build stopped: subcommand failed.

can anyone guide me to solve this?
I am new to python and SU2 both.

[bigfootedrockmidget]

you are not allowed to install in /usr/local/bin, probably because you run this as a regular user and you need admin rights for global installation. If you install as a regular user, you usually install in your home directory, you give the installation directory to meson by adding --prefix=/home/userdir/su2 to your meson command.