# \#integrado-

**URL:** https://forums.digi.com/tag/integrado/4464.md

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## [Use Files in 8M Nano](https://forums.digi.com/t/use-files-in-8m-nano/21774)

<div class="topic-metadata">

**Author:** [@lalvarez](https://forums.digi.com/u/lalvarez)\
**Replies:** 1\
**Last updated:** [September 15, 2020, 10:00am UTC](https://forums.digi.com/t/use-files-in-8m-nano/21774 "2020-09-15T10:00:46Z")

</div>

I am using the 8m nano development kit. I want to use files, but the open function gives me the error: warning: implicit declaration of function ‘open’; did you mean ‘popen’? \[-Wimplicit-function-declaration\] 43 | fd\_…