New to Unity, Could use some advice on how to fix this error

Getting Started
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Hey guys this is my first time posting on here and i just really need some help on this error that i cant seem to fix on this 3D FPS game I’ve been working on for my game design class. I’ve been getting 2 “NullReferenceException” errors when trying to use a script that’s supposed to activate a particle system every time i shoot the target to simulate blood. I attached a picture of the errors and a picture of the script. Anyone got any advice? oh yeah and im on version 2020.3.14f1

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Code-related questions are best posted here: Unity Engine - Unity Discussions.
You may also want to read the content at https://forum.unity.com/threads/how-to-fix-a-nullreferenceException-error.1230297/ .

If an error occurs, it would be a good idea to check whether the child object of the object that was hit contains Blood.
If it is included, there may be a problem with the Play() part.

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As Kurt will tell you, the first thing to do is work out what is NULL.

In this case it looks like you probably don’t have a Blood component attached to your Enemy game object.

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Hi,

Please use Scripting, or Getting Started sub forum for such questions. General sub forum is not the place for such questions.

Don’t ever use screenshots for scripts / code. Nor phone photos.
Use code tags instead.

9826275--1412667--upload_2024-5-10_10-59-24.png
Screenshots of error log in console are fine.

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The error indicates something going wrong in line 25. In that line, quite a lot could be going wrong:

hit.transform.gameObject.GetComponentInChildren<Blood>().Play();

This assumes that hit is not null, and that it has a child object that has the Blood-component. I am assuming that whatever is being hit does not have the Blood-component added to it, which causes the error. You could add a check like if(hit == null) continue; before line 25, or rewrite it a little:

if(hit == null) continue;
var blood = hit.transform.gameObject.GetComponentInChildren<Blood>();
if(blood != null) blood.Play();
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