run.log.txt (47.6 KB)
_ROOT Version:6.18.04_1 homebrew
_Platform:mac OS X catalina
In file included from /private/tmp/root-20191109-56249-1xyy8k0/root-6.18.04/builddir/input_line_12:21:
In file included from /private/tmp/root-20191109-56249-1xyy8k0/root-6.18.04/builddir/etc/dictpch/allHeaders.h:304:
In file included from /private/tmp/root-20191109-56249-1xyy8k0/root-6.18.04/builddir/include/ROOT/RCsvDS.hxx:14:
In file included from /private/tmp/root-20191109-56249-1xyy8k0/root-6.18.04/builddir/include/ROOT/RDataFrame.hxx:20:
In file included from /private/tmp/root-20191109-56249-1xyy8k0/root-6.18.04/builddir/include/ROOT/RDF/RInterface.hxx:15:
/private/tmp/root-20191109-56249-1xyy8k0/root-6.18.04/builddir/include/ROOT/RDF/ActionHelpers.hxx:1170:51: error: cannot form a reference to 'void'
void Exec(unsigned int /* slot */, BranchTypes &... values)
^
/private/tmp/root-20191109-56249-1xyy8k0/root-6.18.04/builddir/include/ROOT/RDF/RAction.hxx:214:86: note: in instantiation of template class
'ROOT::Internal::RDF::SnapshotHelper<double, double, double, int,
int, void, int, int, int, double, int, int, int, double, double,
double, double, double, double, double, double, double, double,
double, double, double, int, int, double, double, int, double,
ROOT::VecOps::RVec<double>, ROOT::VecOps::RVec<double>,
ROOT::VecOps::RVec<double>, ROOT::VecOps::RVec<double>, int, double,
double, double, double, double, double, double>' requested here
...typename PrevDataFrame, typename ColumnTypes_t = typename Helper::...
^
please see the attachment