# Problems with OSC and Pure Data

**URL:** <https://discourse.processing.org/t/problems-with-osc-and-pure-data/7614>\
**Category:** Libraries\
**Created:** [January 18, 2019, 5:41am UTC](https://discourse.processing.org/t/problems-with-osc-and-pure-data/7614 "2019-01-18T05:41:11Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![julibla](https://avatars.discourse-cdn.com/v4/letter/j/ecccb3/32.png) [@julibla](https://discourse.processing.org/u/julibla)\
**Post date:** [January 18, 2019, 5:41am UTC](https://discourse.processing.org/t/problems-with-osc-and-pure-data/7614/1 "2019-01-18T05:41:11Z")

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Hi guys! i am trying to connect Pure Data and Processing by OSC. Yesterday when i did the conection between the two programs it was succesfull. But today, i get this problem:  
i am working with the port 11112, If i open pd first ,and then run the processing sketch i get this message of processing:

> “ERROR @ UdpServer.start() IOException, couldnt create new DatagramSocket @ port 11112 java.net.BindException: Address already in use: Cannot bind”

If i open processing first and then pure data, processing listening the port 11112 without any problem,but the error in pure data that i get is:

> " dumpOSC 11112  
> … couldn’t create",

if, for example i write dumpOSC 11111 (and processing stills in 11112), the dumpOSC object  
is created normally.

I think is a UDP problem but i cant find the solution anywhere, Please, does anybody know what the problem is? THANKS!!

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**Author:** ![jeremydouglass](https://yyz2.discourse-cdn.com/flex036/user_avatar/discourse.processing.org/jeremydouglass/32/20_2.png) [@jeremydouglass](https://discourse.processing.org/u/jeremydouglass)\
**Post date:** [January 21, 2019, 7:20pm UTC](https://discourse.processing.org/t/problems-with-osc-and-pure-data/7614/2 "2019-01-21T19:20:25Z")

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I’m not sure. I recall recently that @guy_22 had a post about Pure Data with OSC – might have some ideas?

> [@Processing and pure data](https://discourse.processing.org/t/processing-and-pure-data/2394):
>
> Hi, I am trying to send list\array from pure data into processing with OSC, I manged to do it with one varaibale with oscp5 library but cant mange to send an array\list of data and unpack it on processing, any idea how to do that? Thank you!