Connection to TraCI server lost while using veins

[divakar5]

I'm getting the below issue

divakar@divakar:~/veins-5.1/veins-veins-5.1$ ./sumo-launchd.py -vv -c sumo
WARNING: the sumo-launchd.py script is deprecated in favor of bin/veins_launchd. Redirecting.
WARNING: the sumo-launchd.py script is deprecated in favor of bin/veins_launchd. Redirecting.
Logging to /tmp/sumo-launchd.log
Listening on port 9999
Connection from 127.0.0.1 on port 44898
Handling connection from 127.0.0.1 on port 44898
Got TraCI message of length 2
Got TraCI command of length 1
Got TraCI command 0x0
Got CMD_GETVERSION
Got TraCI message of length 304
Got TraCI command of length 299
Got TraCI command 0x75
Got CMD_FILE_SEND for "b'sumo-launchd.launch.xml'"
Got CMD_FILE_SEND with data "b'\n \n \n \n \n \n \n\n'"
Creating temporary directory...
Temporary dir is /tmp/sumo-launchd-tmp-kxqifxm5
Base dir is /home/divakar/veins-5.1/veins-veins-5.1/examples/veins/
Seed is 0
Finding free port number...
Claiming lock on port
...found port 40991
Starting SUMO (sumo -c erlangen.sumo.cfg) on port 40991, seed 0
Connecting to SUMO (sumo -c erlangen.sumo.cfg) on port 40991 (try 1)
Error ([Errno 111] Connection refused)
Connecting to SUMO (sumo -c erlangen.sumo.cfg) on port 40991 (try 2)
Releasing lock on port
Starting proxy mode
Done with proxy mode
Done with proxy mode, killing SUMO
Done running SUMO
Cleaning up
Result: "

1
1616690356
1616690357
Exited with error code 1



"
Closing connection from 127.0.0.1 on port 44898
^CKeyboard interrupt.
Shutting down.
WARNING: the sumo-launchd.py script is deprecated in favor of bin/veins_launchd. Redirection done.
WARNING: the sumo-launchd.py script is deprecated in favor of bin/veins_launchd. Redirection done.

I tried adding log value="log.txt" and verbose value="true" in erlangen.sumo.cfg (in veins example) after that i triggered simulation i got same error and Omnetpp console displayed the below error.

terminate called after throwing an instance of 'omnetpp::cRuntimeError'
what(): Connection to TraCI server lost. Check your server's log. Error message: 32: Broken pipe

Please guide me, I'm new to this domain.

[behrisch]

I cannot immediately spot a sumo error here, maybe it is better to ask here: https://github.com/sommer/veins/issues and also see the comments here #7090

[sommer]

The console output of the top comment is missing anything between angle brackets < and >. Coincidentally, this is what contains the output received from SUMO (see the below example)

Done running SUMO
Cleaning up
Result: "<?xml version="1.0"?>
<status>
        <exit-code>1</exit-code>
        <start>1616770618</start>
        <end>1616770618</end>
        <status>Exited with error code 1</status>
        <stdout><![CDATA[Loading configuration ... done.
]]></stdout>
        <stderr><![CDATA[Error: expected end of tag 'net'
 In file 'erlangen.net.xml'
 At line/column 83/7.

Quitting (on error).
]]></stderr>
</status>

In this case, the error message written by SUMO was "Error: expected end of tag 'net' In file 'erlangen.net.xml' At line/column 83/7. Quitting (on error)."

[divakar5]

Hi SIr,
This is how my error looks

[sommer]

So, your error message is "Error: Attribute 'maxSpeed' in definition of vType 'vtype0' is empty.".

Most likely you changed vtype0 in your .rou.xml and made a mistake there.

[behrisch]

Please reopen with more info if problems persist.