# Libraries don't work

**URL:** <https://forum.xod.io/t/libraries-dont-work/5610>\
**Category:** Uncategorized\
**Created:** [December 2, 2021, 11:40am UTC](https://forum.xod.io/t/libraries-dont-work/5610 "2021-12-02T11:40:08Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![dorian](https://avatars.discourse-cdn.com/v4/letter/d/35a633/32.png) [@dorian](https://forum.xod.io/u/dorian)\
**Post date:** [December 2, 2021, 11:40am UTC](https://forum.xod.io/t/libraries-dont-work/5610/1 "2021-12-02T11:40:08Z")

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Library from site and from program don’t works

 ![2021-12-02_14-26-09](https://canada1.discourse-cdn.com/flex027/uploads/xod/original/2X/5/58379595bfc234f942644416e6d56c95d19f2e62.png)

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**Author:** ![gweimer](https://avatars.discourse-cdn.com/v4/letter/g/a9adbd/32.png) [@gweimer](https://forum.xod.io/u/gweimer)\
**Post date:** [December 3, 2021, 12:48am UTC](https://forum.xod.io/t/libraries-dont-work/5610/2 "2021-12-03T00:48:42Z")

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Simulator does not have LCD (or buttons, or POTs, or LEDs, etc.), so you cannot use those nodes when running a simulation. You can replace the LCD display with a watch node to see what text would be displayed on the LCD. You can also replace buttons, POTs, and other input devices with tweak-\* nodes (tweak-pulse, tweak-number, etc. depending on what you want to input).

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**Author:** ![system](https://canada1.discourse-cdn.com/flex027/uploads/xod/original/1X/eb7348baa04192c2ef932d1db54d44f09f8a7888.png) [@system](https://forum.xod.io/u/system)\
**Post date:** [January 2, 2022, 12:49am UTC](https://forum.xod.io/t/libraries-dont-work/5610/3 "2022-01-02T00:49:40Z")

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