# ArduinoBridge with Arduino example : dataRouter : Session not found

**URL:** <https://mangoh.discourse.group/t/arduinobridge-with-arduino-example-datarouter-session-not-found/461>\
**Category:** mangOH Green\
**Created:** [April 5, 2017, 2:42pm UTC](https://mangoh.discourse.group/t/arduinobridge-with-arduino-example-datarouter-session-not-found/461 "2017-04-05T14:42:20Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![Arnaud](https://avatars.discourse-cdn.com/v4/letter/a/e8c25b/32.png) [@Arnaud](https://mangoh.discourse.group/u/Arnaud)\
**Post date:** [April 5, 2017, 2:42pm UTC](https://mangoh.discourse.group/t/arduinobridge-with-arduino-example-datarouter-session-not-found/461/1 "2017-04-05T14:42:20Z")

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Hi,

I have a problem with the ArduinoBridge app and the Arduino example that is provided with it. I successfully installed the app and runned the sample, I can read all the sensors values in the serial output of the Arduino IDE but when I try to push the data to AirVantage I get this error in the logread :

> Apr 5 14:30:53 swi-mdm9x15 user.err Legato: =ERR= | dataRouter[4923]/routerComponent T=main | router.c dataRouter\_WriteBoolean() 406 | Session not found for app(arduinoBridge)/pid(7316)/session(0x28afc). Call SessionStart() to create a session.

I can’t figure why, can anybody help?

Edit: I suppose that SessionStart() should be called in the ArduinoBridge app at some point to make the connection but it doesn’t seem to be called at all.