# Cannot find part in old project

**URL:** <https://forum.fritzing.org/t/cannot-find-part-in-old-project/7371>\
**Category:** bugs\
**Created:** [September 11, 2019, 8:03am UTC](https://forum.fritzing.org/t/cannot-find-part-in-old-project/7371 "2019-09-11T08:03:08Z")\
**Posts on this page:** 1\
**Showing post:** 6

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**Author:** ![vanepp](https://forum.fritzing.org/user_avatar/forum.fritzing.org/vanepp/32/4426_2.png) [@vanepp](https://forum.fritzing.org/u/vanepp)\
**Post date:** [September 13, 2019, 5:07pm UTC](https://forum.fritzing.org/t/cannot-find-part-in-old-project/7371/6 "2019-09-13T17:07:27Z")

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The PCF8574 part is only the fzp file (one of the 5 files that makes up an fzpz file) and the usb2lcd1602-3.fzz file doesn’t have a PCF8574 in it. If you have the original .fzz file that isn’t working I can probably tell you why though if usb2lcd1602-3.fzz is the original file the lack of the PCF8574 would be the problem.

Peter

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