# Help on exception on using the uhd.dll i think

**URL:** <https://www.ruby-forum.com/t/help-on-exception-on-using-the-uhd-dll-i-think/240507>\
**Category:** GNU Radio\
**Created:** [April 17, 2014, 4:14pm UTC](https://www.ruby-forum.com/t/help-on-exception-on-using-the-uhd-dll-i-think/240507 "2014-04-17T16:14:12Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![musicdenotation](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/m/ea666f/32.png) [@musicdenotation](https://www.ruby-forum.com/u/musicdenotation)\
**Post date:** [April 17, 2014, 4:14pm UTC](https://www.ruby-forum.com/t/help-on-exception-on-using-the-uhd-dll-i-think/240507/1 "2014-04-17T16:14:12Z")

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Hey,

In order to start my on application code using the uhd code, I tried  
creating a new blank project ,and did all

The necessary includes, and library include in the linker an compiler  
and so  
on…

As a starter I copied the uhd\_find\_devices.cpp to my project lib and  
build  
it.

It’s run o.k , and then I tried to use the exe and it has this  
exception:

First-chance exception at 0x0f62763b in uhd\_find\_devices.exe:  
0xC0000005:  
Access violation reading location 0x02796000

What can I do next??

Thanks,

iftah

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**Author:** ![iftah\_giladi](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/i/53a042/32.png) [@iftah\_giladi](https://www.ruby-forum.com/u/iftah_giladi)\
**Post date:** [April 17, 2014, 4:22pm UTC](https://www.ruby-forum.com/t/help-on-exception-on-using-the-uhd-dll-i-think/240507/2 "2014-04-17T16:22:28Z")

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Hi Iftah,  
usually you’d run it with a debugger, and try to find out where  
exactly the access violation happens.

Greetings,  
Marcus

On 17.04.2014 16:12, iftah giladi wrote:

> As a starter I copied the uhd\_find\_devices.cpp to my project lib  
> 0xC0000005: Access violation reading location 0x02796000
> 
> mailing list [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid)  
> [Discuss-gnuradio Info Page](https://lists.gnu.org/mailman/listinfo/discuss-gnuradio)

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