I freshly installed root_v6.12.06.Linux-ubuntu16-x86_64-gcc5.4.tar.gz from binary.
I immediately get these problems:
root -l
cling::DynamicLibraryManager::loadLibrary(): libtbb.so.2: cannot open shared object file: No such file or directory
root [0] new TBrowser
cling::DynamicLibraryManager::loadLibrary(): libtbb.so.2: cannot open shared object file: No such file or directory
Error in TInterpreter::TCling::AutoLoad: failure loading library libGpad.so for TPad
cling::DynamicLibraryManager::loadLibrary(): libtbb.so.2: cannot open shared object file: No such file or directory
(TBrowser *) 0x214cd90