Checkout a CMSSW release, 7_4_8 seems to work.
cmsrel CMSSW_7_4_15
cd CMSSW_7_4_15/src
cmsenv
Checkout following repositories
git clone [email protected]:susy2015/ZInvisible.git
git clone [email protected]:susy2015/SusyAnaTools.git
git clone -b TestMiniAOD [email protected]:susy2015/recipeAUX.git
For the Zinvible estimation, we are currently using the master branch of the SusyAnaTools repository, and the master branch of the ZInvisible repository.
Now compile the relevant pieces
cd recipeAUX
scram b
cd ../Zinvisible/Tools
mkdir obj
make
Now you are ready to go!