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 Albert-han · Jul 05, 2014 at 07:12 AM · unexpected

Unexpected errors

Hi guys im getting some unexpected errors in my weapon manager script that i dont nearly understand.Heres my script and errors.

Errors Assets/Scripts/Weapon/WeaponManager.cs(31,33): error CS0127: WeaponManager.FindWeapon(string)': A return keyword must not be followed by any expression when method returns void Assets/Scripts/Weapon/WeaponManager.cs(31,33): error CS0029: Cannot implicitly convert type Gun' to void' Assets/Scripts/Weapon/WeaponManager.cs(33,17): error CS0127: WeaponManager.FindWeapon(string)': A return keyword must not be followed by any expression when method returns void Assets/Scripts/Weapon/WeaponManager.cs(33,17): error CS0037: Cannot convert null to `void' because it is a value type

Script:

 using UnityEngine;
 using System.Collections;
 using System.Collections.Generic;
 
 public class WeaponManager : MonoBehaviour {
     public List<Gun> Weapons = new List<Gun>();
     public List<string> WeaponNames = new List<string>();
     public int CurWeapon;
     public static WeaponManager Instance;
     // Use this for initialization
     void Start () {
         Instance = this;
     
     }
     
     // Update is called once per frame
     void Update () {
     
     }
 
     void OnGUI()
     {
         CurWeapon = GUILayout.SelectionGrid (CurWeapon, WeaponNames.ToArray(), 4);
     }
 
     public static void FindWeapon(string Name)
     {
         foreach (Gun Gu in Instance.Weapons) 
         {
             if(Name == Gu.Name)
                 return Gu;
         }
         return null;
     }
 }

Please help.Thanks

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

3 Replies

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

Answer by Kiwasi · Jul 05, 2014 at 07:21 AM

So people have been keen to point out the problem. But no one has written you a solution. Try changing the return type to gun, as in the following.

 public static Gun FindWeapon(string Name)
 {
     foreach (Gun Gu in Instance.Weapons) 
     {
        if(Name == Gu.Name)
             return Gu;
     }
     return null;
 }
Comment
Add comment · 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
0

Answer by mattyman174 · Jul 05, 2014 at 07:17 AM

  public static void FindWeapon(string Name)
 {
   foreach (Gun Gu in Instance.Weapons)
   {
     if(Name == Gu.Name)
       return Gu;
   }
   return null;
 }

This functions return type is specified as void. You cant use return statements of a different type in a function with no return type.

The Error clearly describes what the problem is. Please follow some tutorials on basic programming concepts and it will become clear to you where you have gone wrong and how to avoid it in the future.

Comment
Add comment · 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
0

Answer by dsada · Jul 05, 2014 at 07:18 AM

EDIT As i read your whole function you also return a Gun type in a certain condition. In that case you might want to change your return type to Gun instead of void at your function declaration. void return type is used to not give back anything. And null is something. It is a value type.

From a void return type function you can return anytime of course with a simple return keyword

Comment
Add comment · 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

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

24 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

Related Questions

xcode fails to build a very simple scene (201 errors) 3 Answers

So many script problems. Please help, urgent! 2 Answers

syntax errors 1 Answer

Script Errors when nothing wrong...I think 1 Answer

Error when trying to access another script? 2 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