# APDE USB / OTG communication

**URL:** <https://discourse.processing.org/t/apde-usb-otg-communication/30114>\
**Category:** Processing for Android\
**Created:** [May 16, 2021, 12:13am UTC](https://discourse.processing.org/t/apde-usb-otg-communication/30114 "2021-05-16T00:13:07Z")\
**Posts on this page:** 1\
**Showing post:** 67

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**Author:** ![ZENAR57](https://avatars.discourse-cdn.com/v4/letter/z/a698b9/32.png) [@ZENAR57](https://discourse.processing.org/u/ZENAR57)\
**Post date:** [May 21, 2021, 10:25pm UTC](https://discourse.processing.org/t/apde-usb-otg-communication/30114/67 "2021-05-21T22:25:52Z")

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Ok. I realized. difficulties arose with both libraries. this hour I will write in detail,  
I have little experience in installing libraries. Only automatically-zip and manually dfx.  
but in both cases, the archive must have a “libraries” directory, which must contain the core library files with the .jar extension.  
The libraries you referenced do not contain this “libraries” directory and there are no .jar files.  
Don’t know how to install them on APDE.  
please give instructions.

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