Wayback Machinekoobas.hobune.stream
May JUN Jul
Previous capture 12 Next capture
2021 2022 2023
1 capture
12 Jun 22 - 12 Jun 22
sparklines
Close Help
  • Products
  • Solutions
  • Made with Unity
  • Learning
  • Support & Services
  • Community
  • Asset Store
  • Get Unity

UNITY ACCOUNT

You need a Unity Account to shop in the Online and Asset Stores, participate in the Unity Community and manage your license portfolio. Login Create account
  • Blog
  • Forums
  • Answers
  • Evangelists
  • User Groups
  • Beta Program
  • Advisory Panel

Navigation

  • Home
  • Products
  • Solutions
  • Made with Unity
  • Learning
  • Support & Services
  • Community
    • Blog
    • Forums
    • Answers
    • Evangelists
    • User Groups
    • Beta Program
    • Advisory Panel

Unity account

You need a Unity Account to shop in the Online and Asset Stores, participate in the Unity Community and manage your license portfolio. Login Create account

Language

  • Chinese
  • Spanish
  • Japanese
  • Korean
  • Portuguese
  • Ask a question
  • Spaces
    • Default
    • Help Room
    • META
    • Moderators
    • Topics
    • Questions
    • Users
    • Badges
  • Home /
  • Help Room /
avatar image
0
Question by LunaTrap · Dec 10, 2015 at 04:53 PM · gameobjectnullreferenceexceptionfindfind-gameobjectexceptions

(Solved) Findout if an object exist in the scene, but dont trow exception

Hi! my question is simple

i want to check if an object in the scene exist, i know how to do that, but, from that, if the object is not found, i want to set a variable to false, but unity of course will trow a null reference exception and my code wont run, is there a way to tell if an object is not present wihtout unity trowing exceptions? this is for editor window scripting btw.

here is the code i have until now

 private void CheckIfPrefabHierarchyExist()
     {
         Transform holder = GameObject.Find("Bacterias").transform;
   
         if (holder == null)
         {
             hierarchyPrefabDetected = false;
         }
         else
         {
             hierarchyPrefabDetected = true;
         }
     }
Comment
Add comment
10 |3000 characters needed characters left characters exceeded
▼
  • Viewable by all users
  • Viewable by moderators
  • Viewable by moderators and the original poster
  • Advanced visibility
Viewable by all users

1 Reply

· Add your reply
  • Sort: 
avatar image
1
Best Answer

Answer by BackslashOllie · Dec 10, 2015 at 05:16 PM

you are getting a null reference exception because your code is trying to return the transform of an object which doesn't exist. Try this:

 private void CheckIfPrefabHierarchyExist()
 {
     if (GameObject.Find("Bacterias") == null)
     {
         hierarchyPrefabDetected = false;
     }
     else
     {
         hierarchyPrefabDetected = true;
     }
 }
Comment
Add comment · Show 2 · Share
10 |3000 characters needed characters left characters exceeded
▼
  • Viewable by all users
  • Viewable by moderators
  • Viewable by moderators and the original poster
  • Advanced visibility
Viewable by all users
avatar image LunaTrap · Dec 10, 2015 at 06:38 PM 0
Share

thanks a lot, that seems like it would work, let me try it :) and report results.

avatar image LunaTrap · Dec 10, 2015 at 06:43 PM 0
Share

it worked! thanks a lot! :)

Your answer

Hint: You can notify a user about this post by typing @username

Up to 2 attachments (including images) can be used with a maximum of 524.3 kB each and 1.0 MB total.

Follow this Question

Answers Answers and Comments

34 People are following this question.

avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image

Related Questions

setting a variable to a GameObject that has a certain RGB value??? please help 0 Answers

Why does GameObject.Find() work in ones and not in others? 1 Answer

GameObject.Find throws be a error when trying to find a child. 1 Answer

How Can I assign a gameobject via script? 0 Answers

How can we be notified the moment an object is instanced in the scene ? 3 Answers


Enterprise
Social Q&A

Social
Subscribe on YouTube social-youtube Follow on LinkedIn social-linkedin Follow on Twitter social-twitter Follow on Facebook social-facebook Follow on Instagram social-instagram

Footer

  • Purchase
    • Products
    • Subscription
    • Asset Store
    • Unity Gear
    • Resellers
  • Education
    • Students
    • Educators
    • Certification
    • Learn
    • Center of Excellence
  • Download
    • Unity
    • Beta Program
  • Unity Labs
    • Labs
    • Publications
  • Resources
    • Learn platform
    • Community
    • Documentation
    • Unity QA
    • FAQ
    • Services Status
    • Connect
  • About Unity
    • About Us
    • Blog
    • Events
    • Careers
    • Contact
    • Press
    • Partners
    • Affiliates
    • Security
Copyright © 2020 Unity Technologies
  • Legal
  • Privacy Policy
  • Cookies
  • Do Not Sell My Personal Information
  • Cookies Settings
"Unity", Unity logos, and other Unity trademarks are trademarks or registered trademarks of Unity Technologies or its affiliates in the U.S. and elsewhere (more info here). Other names or brands are trademarks of their respective owners.
  • Anonymous
  • Sign in
  • Create
  • Ask a question
  • Spaces
  • Default
  • Help Room
  • META
  • Moderators
  • Explore
  • Topics
  • Questions
  • Users
  • Badges