ERROR in cling::CIFactory::createCI(): cannot extract standard library include paths! dell machine

sushil@sushil-Inspiron-3501:~$ root -l

ERROR in cling::CIFactory::createCI(): cannot extract standard library include paths!
Invoking:
LC_ALL=C x86_64-linux-gnu-g+±9 -xc++ -E -v /dev/null 2>&1 | sed -n -e ‘/^.include/,${’ -e ‘/^ /.*++/p’ -e ‘}’
Results was:
With exit code 0
cling::DynamicLibraryManager::loadLibrary(): libssl.so.1.1: cannot open shared object file: No such file or directory
root [0]

I am using dell laptop Inspiration 15 300. My operating system is Ubuntu Desktop 20.04 LTS. Could anyone help me ,please?

Welcome to the ROOT forum.

I suppose you downloaded ROOT from the ROOT website?
Or did you install it yourself?
It looks like $ROOTSYS is set correctly.
Maybe @Axel has some ideas about it.

Check if you have the “g++” compiler installed: sudo apt-get install g++; g++ --version
If you have “g++”, check: sudo apt-get install libssl-dev

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