Singleton Class Name Conflict

Question

I just trying to create a singleton for static global variables.

 public class SingletonController : MonoBehaviour {
   public static SingletonController instance { get; private set; } // <- fails
   // etc.
 }

Error: SingletonController name conflict with the class name SingletonController. (Conflict with Assembly-CSharp-firstpass)

Unity Version2018.2.13f1

Answer 1

Best Answer

Answer by Domvel · Oct 23, 2018 at 04:48 PM

Solution: Just restart Unity. If it still crying try to delete the Library folder from the project.

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Vicarian · Oct 23, 2018 at 05:08 PM 0

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Please mark this as the answer to close this question.

Domvel Vicarian · Oct 23, 2018 at 05:11 PM 0

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I really tried. But this website (Unity answers is very buggy) :D e.g. my post wasn't visible, the show more comments doesn't work ... and and and... I already sent a feedback suggestion to fix this bugs. but anyway. thanks ^^ Btw. also here is a restart helpful. But not always. Glitchy page.

Vicarian Domvel · Oct 23, 2018 at 05:13 PM 0

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It's all good - you couldn't mark it as an answer because you happened to write it as a comment on your original post.

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Answer 2

Answer by GamitusLabs · Oct 23, 2018 at 03:53 PM

Don't even give them the set option...

 private static SingletonController instance = null;

 public static SingletonController Instance
 {
     get { return instance; }
 }

 void Awake()
 {
     if (!instance)
     {
         instance = transform.GetComponent<SingletonController>();
         DontDestroyOnLoad(instance);
     }
     else
         Destroy(gameObject);
 }

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Bunny83 · Oct 23, 2018 at 04:10 PM 0

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Why do you use transform? And why do you actually use GetComponent? just do

 instance = this;

Currently you actually do

 instance = this.GetComponent<Transform>().GetComponent<SingletonController>();

Though i don't think that this is actually the issue here. The property he has should work just fine. I guess he has another class somewhere in his project with the same name. Since the error mentions "Assembly-CSharp-firstpass" that class is declared inside a plugins or Standard Assets folder.

GamitusLabs Bunny83 · Oct 23, 2018 at 04:27 PM 0

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it's just a matter of notation

the computational difference is negligible

Vicarian · Oct 23, 2018 at 04:20 PM 0

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private set just means that the set can only be accessed from the class the property is declared in. No other class will have access to the set, but will be able to access the get. It's basically exactly what you want with the Singleton pattern.

Domvel Vicarian · Oct 23, 2018 at 04:22 PM 0

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Correct, it's just a shorter code to do this. :)

GamitusLabs Domvel · Oct 23, 2018 at 05:14 PM 0

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That's a neat trick, I've never used it this way because if figured the opposing scope would throw an error

Answer 3

Answer by Domvel · Oct 23, 2018 at 04:05 PM

Thanks for response, but the set option isn't the problem. At the moment, it seems so. Maybe a pseudo error?
See the underlined conflicts with the name. (of my first post)

screen.png (35.1 kB)

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GamitusLabs · Oct 23, 2018 at 04:11 PM 0

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is your file name different from your class name?

Domvel GamitusLabs · Oct 23, 2018 at 04:16 PM 0

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In both cases same problem. I change the name of the class. The problem message tells about "Conflict with Assembly-CSharp-firstpass, Version=0.0.0.0, Culture=natural, Public$$anonymous$$eyToken=null". Followed by "the defined type is used." That's weird.

Vicarian Domvel · Oct 23, 2018 at 04:30 PM 0

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So you created SingletonTest as a fresh class and it's not getting used elsewhere? I wonder if something happened with your Asset Database. $$anonymous$$aybe delete the Library folder and have Unity rebuild it?

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Singleton Class Name Conflict

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