veins: Attempted to read past end of byte buffer error

Question

I use sumo 0.21, veins 3.0, OMNet++ 4.6 but when I run simulation without internet connection i get the error

Attempted to read past end of byte buffer

and even using low speed internet connection make noticeable latency before running simulation i used previous version of these simulator but only in these version this problem occurred What is the cause of this problem? how can I fix it?

Did you check if your installation of SUMO works without an Internet connection? — Christoph Sommer, Jan 27 '16 at 07:12
i test it and you're right, sumo doesn't works without internet connection and probably it is the couse of problem, how can i fix it? — S.kh, Jan 27 '16 at 10:38

score 0 · Accepted Answer · answered Jan 27 '16 at 11:47

For recent versions of SUMO, you will need to either turn XML schema validation off, set the SUMO_HOME environment variable so that XML schema files can be found, or attach your machine to the Internet so they can be downloaded on-demand.

Quoting from the SUMO Wiki:

--xml-validation <STRING>: Set schema validation scheme of XML inputs ("never", "auto" or "always"); default: auto

The schema files can be found in the /data/xsd directory of your SUMO installation. If the environment variable SUMO_HOME is set, these files will be used when validation inputs.

Otherwise, the files are loaded from http://sumo.dlr.de/xsd/SCHEMA_FILE which may slow down the application (or fail if there is no internet connection).

veins: Attempted to read past end of byte buffer error

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