# Error when running startup animation "EVAL FAILED: pystack exhausted" in version 8.3.4

**URL:** <http://forum.squareline.io/t/error-when-running-startup-animation-eval-failed-pystack-exhausted-in-version-8-3-4/1194>\
**Category:** Bugs\
**Created:** [May 2, 2023, 7:27pm UTC](http://forum.squareline.io/t/error-when-running-startup-animation-eval-failed-pystack-exhausted-in-version-8-3-4/1194 "2023-05-02T19:27:05Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![AndresD23](http://forum.squareline.io/letter_avatar_proxy/v4/letter/a/e9bcb4/32.png) [@AndresD23](http://forum.squareline.io/u/AndresD23)\
**Post date:** [May 2, 2023, 7:27pm UTC](http://forum.squareline.io/t/error-when-running-startup-animation-eval-failed-pystack-exhausted-in-version-8-3-4/1194/1 "2023-05-02T19:27:05Z")

</div>

### What do you want to achieve?

Run startup animation with image in SquareLine simulator with version 8.3.4 of the library.

### What have you tried so far?

Imitate the widget parameters of the example widgets and also the settings of the environment used for the example.

### Screenshot or video

 ![image](http://forum.squareline.io/uploads/default/original/1X/de4f9936a2acb0ef38404e6d72372ac80ddeee15.png)

### Others

- **SquareLine Studio version:** 1.2.3
- **Operating system:** Windows 11
- **Target hardware:** ESP32 with ILI9341

Hello everyone, I am writing to report something that is happening to me when I want to replicate the following example that I base here: " [Animation test for start screen](https://forum.squareline.io/t/animation-test-for-start-screen/60) " when importing it works correctly, however when I replicate in my project the parameters of the example I get an error in console that crashes the simulation of the same (As seen in the attached image).

Looking a little by the interface I saw that the example was configured for PC in eclipse in version 8.2.0, I changed it to version 8.3.4 maintaining eclipse and when I simulate the example it crashes with the error in console, seeing this I returned to my project and lowered the version to 8.2.0 and it worked correctly, being so the problem comes out when simulating in SquareLine with the library 8.3.4.

I wanted to ask if this affects only in SL or when exporting there is no problem, since I have configured the Arduino IDE with the library in 8.3.4 and compiles without problem, and I do not want complications by lowering the version to 8.2.0.

I remain attentive to your kind comments, best regards.