Wayback Machinekoobas.hobune.stream
May JUN Jul
Previous capture 13 Next capture
2021 2022 2023
1 capture
13 Jun 22 - 13 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 /
avatar image
0
Question by Garneth101 · Dec 22, 2012 at 07:41 PM · c#nullreferenceexceptionboolpublic

NullReferenceException (C#)

Getting "NullReferenceException: Object reference not set to an instance of an object UserInterfaceControllerScript.Start () (at Assets/Scripts/UserInterfaceControllerScript.cs:10)"

The code on line 10 is part of the Start () method on line 10, which says:4

 void Start () {
         cameraControlScript = gameObject.GetComponent<CameraControllerScript>();
         cameraControlScript.isExtraActionMenuActive = false;
     }

I initiated cameraControlScript as:

 CameraControllerScript cameraControlScript;

in order to bring in a public bool that is in the CameraControllerScript. Am I going about this wrong? I just want to be able to access and change the public bool's status between true and false from inside this script.

Any ideas?

Comment
Add comment · Show 2
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 fafase · Dec 22, 2012 at 08:07 PM 0
Share

Is this attached to the same object as the CameraControlScript?

avatar image Garneth101 · Dec 22, 2012 at 08:48 PM 0
Share

this isn't attached to anything yet. the only reason I know there's an error is because it's in the console before I hit play. I haven't built the UI to attach this script to xD

1 Reply

· Add your reply
  • Sort: 
avatar image
0

Answer by Demigiant · Dec 22, 2012 at 08:20 PM

This can only mean that the CameraControllerScript Component is not attached to the same GameObject where UserInterfaceControllerScript is attached to, since GetComponent didn't find it.

Comment
Add comment · Show 3 · 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 Garneth101 · Dec 22, 2012 at 08:48 PM 0
Share

UserInterfaceControllerScript isn't attached to anything yet, though I don't see why it'd matter? $$anonymous$$ust I attach it in order for the public bool to communicate between the two scripts?

avatar image Demigiant · Dec 22, 2012 at 10:22 PM 0
Share

It needs to be attached to the same GameObject to which you attach CameraControllerScript. Not in order for the bool to communicate, but in order for gameObject.GetComponent to find CameraControllerScript, and thus its bool property

avatar image Garneth101 · Dec 22, 2012 at 11:29 PM 0
Share

Ah alright, thank you! :)

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

11 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

Related Questions

Unity event calling function gets nullreferencexception on bool 0 Answers

Accessing Instance Bool from other script 2 Answers

Problems accessing other script's variable 1 Answer

Multiple Cars not working 1 Answer

Distribute terrain in zones 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