problem with include files

[Toshiro Shisude]

I have just installed Delphes 3.4.2, but ROOT complains
it cannot find the include files in external/ExRootAnalysis.
This may seem like a simple include-path problem, yet I do
not seem to be able to fix it.

The errors I get are

$ root
... rootlogon.C ... loading libraries ...
Error in cling::AutoLoadingVisitor::InsertIntoAutoLoadingState:

Missing FileEntry for ExRootAnalysis/ExRootConfReader.h
requested to autoload type ExRootConfParam

Error in cling::AutoLoadingVisitor::InsertIntoAutoLoadingState:

Missing FileEntry for ExRootAnalysis/ExRootConfReader.h
requested to autoload type ExRootConfReader

Error in cling::AutoLoadingVisitor::InsertIntoAutoLoadingState:

Missing FileEntry for ExRootAnalysis/ExRootTask.h
requested to autoload type ExRootTask

In rootlogon.C I have this:

gSystem->AddIncludePath("-I/usr/local/Delphes-3.4.2/external/");
gSystem->AddIncludePath("-I/usr/local/Delphes-3.4.2/classes/");
gSystem->AddIncludePath("-I/usr/local/ExRootAnalysis/");
gSystem->Load("/usr/local/Delphes-3.4.2/libDelphes.so");

And furthermore, the bash environment contains the right paths:

ROOT_INCLUDE_PATH=/usr/local/ExRootAnalysis/:/usr/local/Delphes-3.4.1/external:/usr/local/Delphes-3.4.2/classes
SHLIB_PATH=/usr/local/root-6.22.06/lib
DYLD_LIBRARY_PATH=/usr/local/root-6.22.06/lib
PYTHONPATH=/usr/local/root6.22.06/lib:
/usr/local/ExRootAnalysis/:/usr/local/Delphes-3.4.1/external:/usr/local/Delphes-3.4.2/classes
LIBPATH=/usr/local/root-6.22.06/lib
ROOTSYS=/usr/local/root-6.22.06
LD_LIBRARY_PATH=/usr/local/ExRootAnalysis/:/usr/local/Delphes-3.4.2:/usr/local/root-6.22.06/lib

The permissions in /usr/local/Delphes-3.4.1/external seem
to be correct, I can read every file in that folder with more/less.

So I would be most grateful if you could give me some pointer on
this issue.
For some more information, I have downloaded Delphes-3.4.2 from
​https://github.com/delphes/delphes/archive/master.zip
as indicated in the answer to #1484, then compiled with
root-6.22.06 without errors (though plenty of warnings).

Despite these error messages, I am able to compile old ROOT analyses
without problems, and they run with a large number of error messages
but apparently flawless results.

Thanks so much for your attention.

[Pavel Demin]

I think a similar question was asked on the root forum:
​https://root-forum.cern.ch/t/gsystem-addincludepath-doesnt-work/10946

The answer was to remove '-I'.

Could you try the following code?

gSystem->AddIncludePath("/usr/local/Delphes-3.4.2/external/");
gSystem->AddIncludePath("/usr/local/Delphes-3.4.2/classes/"); 

[Toshiro Shisude]

Thanks for the prompt answer. I tried without the "-I" but it didn't seem to work:

$ root -l
root [0] gSystem->AddIncludePath("/usr/local/Delphes-3.4.2/external/");
root [1] gSystem->AddIncludePath("/usr/local/Delphes-3.4.2/classes/");
root [2] gSystem->Load("/usr/local/Delphes-3.4.2/libDelphes.so");
Error in cling::AutoLoadingVisitor::InsertIntoAutoLoadingState:

Missing FileEntry for ExRootAnalysis/ExRootConfReader.h
requested to autoload type ExRootConfParam

Error in cling::AutoLoadingVisitor::InsertIntoAutoLoadingState:

Missing FileEntry for ExRootAnalysis/ExRootConfReader.h
requested to autoload type ExRootConfReader

Error in cling::AutoLoadingVisitor::InsertIntoAutoLoadingState:

Missing FileEntry for ExRootAnalysis/ExRootTask.h
requested to autoload type ExRootTask

root [3]

[Toshiro Shisude]

OK, so I checked the reference you quoted and changed the commands to

gInterpreter->AddIncludePath("/usr/local/Delphes-3.4.2/external/");
gInterpreter->AddIncludePath("/usr/local/Delphes-3.4.2/classes/");
gInterpreter->AddIncludePath("/usr/local/ExRootAnalysis/");
gSystem->Load("/usr/local/Delphes-3.4.2/libDelphes.so");

with gInterpreter instead of gSystem, and the error messages are gone.

That seems to solve the problem.

Thanks again.