MadGraph5_aMC@NLO

** ERROR: The dataset 'ttbar_2l.lhe.gz' has not been found

Asked by daniel camargo

I installed the libz libraries, but the program still say .......
Checking zlib libraries ...
 ** WARNING: Library called 'libz' is not found. Gzip format will be disabled.
 ** WARNING: To enable this format, please install 'zlib-devel' package.

And when I import for example ...ma5>import ttbar_2l.lhe.gz as ttbar... the program say this....

 ** ERROR: The dataset 'ttbar_21.1he.gz' has not been found or has a unsupported format.

What is the mistake? thaks .

Question information

Language:
English Edit question
Status:
Answered
For:
MadGraph5_aMC@NLO Edit question
Assignee:
MadAnalysisTeam Edit question
Last query:
Last reply:
Revision history for this message
Benjamin Fuks (fuks) said : 		#1

Hi Daniel,

The point is that ma5 is not finding the zlib librairie so that you cannot import zipped event file. The crash is thus normal so far. If you have installed zlib, I only see two possibilities here:
 1) please install zlib via madanalysis (type 'install zlib' in the ma5 shell)
 2) one of the files libz.so, libz.a or libz.dylib must be in a path referred to by LD_LIBRARY_PATH. This is probably not the case (otherwise ma5 would have found zlib). Could you please try to update the environment variable above and tell me if the problem persists?

Cheers,

Benjamin

Revision history for this message
daniel camargo (dacamargov) said : 		#2

Hi Benjamin, I am tried to solve my problem with the firts option but it not solved the problem, now with the second advice..sorry but I dont know to change the path, I remember that you said some about to change the directory in emacs, but I dont know make this. Please Benjamin, can you say me the steps to change these directories and therefore check the second advice. Thanks so much

Revision history for this message
Benjamin Fuks (fuks) said : 		#3

Hi Daniel,

Please just type in a shell, or include it in your profile file (.bash_rc, etc...),
  export LD_LIBRARY_PATH=<newpath>:$LD_LIBRARY_PATH
where <newpath> is the path to the libraries.

Cheers,

Benjamin

PS: I will answer the problems with the first option in the other ticket.

Can you help with this problem?

Provide an answer of your own, or ask daniel camargo for more information if necessary.

To post a message you must log in.