<div dir="ltr">Dear Rivet Team,<br><br>I am installing Herwig7, and have installed fastjet (with Rivet), 
but  while I do  make -j$(nproc) (for Herwig), I get following error:<br><br><br><br>In file included from /home/prabhdeep/HerwigManIns/<wbr>Rivet/include/fastjet/<wbr>SharedPtr.hh:41:0,<br><div>                 from /home/prabhdeep/HerwigManIns/<wbr>Rivet/include/fastjet/<wbr>PseudoJet.hh:42,<br>                 from LEPFourJetsAnalysis.cc:21:<br>/home/prabhdeep/HerwigManIns/<wbr>Rivet/include/fastjet/<wbr>internal/deprecated.hh:41:42: error: expected unqualified-id before ‘[’ token<br> #define FASTJET_DEPRECATED_MSG(<wbr>message)  [[deprecated(message)]]<br>                              <wbr>            ^<br><br><br></div><div>Actually
 I get this type of error many time and I have copied just one. Could 
you please help me solving it?  I Would be very thankful to you.<br><br></div><div>Looking forward for your reply,<br></div><div>Prabhdeep<br></div><div>Assistant Prof. in Physics,<br></div><div>SLIET, Punjab India.<br></div><div><br></div><div>P.S.: I have 64 bit fedora OS.</div><br></div>