# Processing 4.0 is not starting

**URL:** <https://discourse.processing.org/t/processing-4-0-is-not-starting/33490>\
**Category:** Processing\
**Created:** [November 13, 2021, 6:18pm UTC](https://discourse.processing.org/t/processing-4-0-is-not-starting/33490 "2021-11-13T18:18:47Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![alex119](https://avatars.discourse-cdn.com/v4/letter/a/e95f7d/32.png) [@alex119](https://discourse.processing.org/u/alex119)\
**Post date:** [November 13, 2021, 6:18pm UTC](https://discourse.processing.org/t/processing-4-0-is-not-starting/33490/1 "2021-11-13T18:18:47Z")

</div>

Hello,

I have a problem. I deleted the old processing (3.0 version )and installed the 4th version. When I start processing it appears an error: “Could not load Java Mode, please reinstall Processing”.  
I tried to install a new version of JDK, but I get the same error. Did somebody had this issue until now ?

Thanks in advance!

EDIT: I resolved it. I deleted from Documents folder, the Processing folder, which contains examples, libraries etc.