The script don't inherit a native class that can manage a script

I have 2020.3.8f1 installed, never happened anything like this and I have 2020.3.X for quite some time now.

Now I'm installing 2020.3.6f1 again, will see what the tests show. But I had it at some point, and two of my projects were on it at the time, never happened anything like it. I really think it's not Unity (or something super-rare constellation of things).

 

I fixed that error by making sure that both the name and the Class were the same, just try checking that before doing anything else.

 

I had the same issue, then I saw that the name of the script and the name in the editor were different. Make sure they have the same name.

If you are 100% sure that's correct, first close Visual Studio/Code then head over to preferences > external tools > regenerate project files.

 

Heyy I got the same problem but solution is really simple no need no even quit unity editor

Code (CSharp):

1. using System.Collections;
2. using System.Collections.Generic;
3. using UnityEngine;
4.  
5. public class CameraFollow : MonoBehaviour
6. {
7.     public Transform player;
8.     public float smoothSpeed;
9.     public Vector3 offset;
10.  
11.     private void FixedUpdate()
12.     {
13.         transform.position = player.position + offset;
14.     }
15. }
16.  

in this code the name you can see

Code (CSharp):

1. public class CameraFollow : MonoBehaviour

you should have no gaps while writing the script name, In the editor I made a silly gap in between which was unacceptable

Conclusion:
don't put gap while naming your script, THANKS

 

Hello everyone. So a majority of people seem to have this error. I don't know if someone is still looking for the fix or not. I faced this error and many other errors regarding scripts. So, I figured out a solution to this problem that works for me at least and I hope it works with others as well. So the fix is simple. When you are editing a script, close all other scripts that may have been open in visual studio and the only script open should be the one you are working on. That way, the error should disappear.

 

Hello I think you may have renamed the script after making it

 

Hi, Sorry for being late. For me, I had imported a few things and there was an error message in the console. I just deleted the entire 'scripts' folder which housed the scripts giving me the errors. Once I did, Unity did the whole C# recompile thing and I could then add my scripts without any problem. Hope this helps

 

I'm not sure if this will help anyone, but when I had this issue, I believe it was Visual Studio's fault. It named the public class incorrectly as "NewBehaviourScript" instead of the name of the script I created in Unity. Also, this likely would happen if you rename the Script in Unity but not in your C# editor.

 

Hey, I'm assuming you already solved the issue, but in case you didn't. I was having the same problem, and I found that another class/file had some errors and was not compiling. By fixing those errors, I was able to have everything compile and I could attach my desired script to my gameobject. Hope that helps!

 

check that the part before the "MonoBehaviour" is the same as your file name.....

for example, my file name is PlayerController and as i renamed the file from "NewBehaviourScript".
so it said:

public class NewBehaviourScript : MonoBehaviour
instead of
public class PlayerController : MonoBehaviour

Thats how i fixed mine...... just remember, its always the little things that dont tend to stand out.

hopefully this helps someone.

 

That generic dialog is very confusing. I just had the same problem. My file names were all correct no extra spaces. For me it was I had accidentally deleted the last closing bracket in one of my classes and it wasn't the MonoBehavior that I was trying to add. By closing and opening the editor it revealed that I had a compile error -- which caused it to launch in safe mode. Once I fixed the missing bracket it compiled w/o errors and I could add the component to objects without that annoying popup.

 

I traced this down to my version of this problem. This happens to me when I rename a script. After that I cannot attach it to an object to use it. I make a new script of another name with the exact same code and it is fine. Guess the rename function doesn't actually rename everything it needs to. (The files renamed but the class name did not. Class name was the old name.)

 

I had this problem as well, what i did which worked was delete any spaces in the name, then it worked perfectly

 

Worked for me! Thanks!

 

I fixed this issue by not renaming my script. If you name your script something like XYZ, you need to make sure that your script also has XYZ : MonoBehaviour. If you go in and rename the script file ABC after a while, the script needs to be updated with that name to ABC : MonoBehaviour.

 

I had the same problem, but my fix was really really simple, i renamed the script, to the exact same thing, and bam, the problem was gone.

 

you may want to make the name of the script in the editor match with how it's called in the mono behavior loop (don't use the "space" kay when naming your scripts)

 

In may case, the class name was different from the script filename. I just renamed the file to the same name of the class and the error was gone.

 

Using Add Component works at least. Dragging the script is a no go. What I did is Add Component a script to a GameObject, then, because the code I wanted to add to the GameObject is already written, I copy pasted the code I want to add to the GameObject. It works, but annoying for sure.

 

I'm new to unity and this is the third time I've gotten this message since I've started. The solutions to the first two problems was remove the space that was in the script name, The second solution was delete the script, create a new script and add it to your object before you change any part of the code.

 

Hi guys, in case this would help someone; I was getting this error when I tried to add a script to the object. The reason was uncompleted line of code in another script which was even not attached to anything.

 

Try creating a new empty object and then adding the code to it. It worked for me.

 

Encountered the same issue, eventually found out it was because of wrong indentation (thought only Python has that problem)

 

If you still get the message (the script doesn't inherit from a native class) I found that when I removed the space from the name of my script the message disapeared .
At first I couldn't attach the script (Blade Animation) to my gameobject (Blade) and when I changed the name to (BladeAnimation) the problem vanished.

 

Make sure your script can compile. For me it was a syntax error in the previous script I was working on, producing this follow on and false error. One of the problems I have experienced if you're working on a Mac is the file system is not always case sensitive, so make sure the name of the file matches in both editor, filesystem, and unity. BUT make sure your program is compiling before adding the script.

 

I had this problem and I fixed it by making sure that the class name in the script matches the file name in unity. Hopefully this helps.

 

If using Visual Studio try the following in Unity.

Edit->Preferences->External Tools

Make sure Embedded packages, local packages, built-in-packages are checked. Click the "Regenerate project files" button. Then click Refresh or CTRL+R.

 

I found the solution. rename the script file name to class (filename) : monobihaviour like this. it worked for me. file name and class name should be the same without spaces.

 

This is an old thread but I had this issue when I tried to rename the script more than once. I had to delete the script and add it again then it worked fine.

 

I fixed it mine by taking out the space in script name. Check if that is the case for u

 

I just go this happen to me. So in my case it didn't let me put the new script onto the object until I fixed the compiler error in the OTHER script. Maybe it stops compiling if it detects an error so it never compiles the file which you want to drag onto a gameobject. If someone having this issue, just check for compiler errors in the scripts or as other people suggested it check if the script name and the class name matches.

 

I met the same problem, the reasons for this problem is on my side, I renanme my .cs file name, , but I didn't modify files inside the class name.

 

THISSSSSS, I was following along with my professor when I was typing code and out of habit with typing I made a class in my folders that was "map generation" and in c# it was "MapGeneration" so they didn't jive, simply removing the space IN the editor fixed all of my problems.

 

I agreed the most common reason is difference in file name and header, but I had this occur when I had errors in another file and I was trying to resolve by creating a new file and .breaking code into small chunks.

 

I had the same problem while using unity 2020.4
My scripts showed no mistake (same as you). What I did was make a change that will not affect the file itself like:

"public class Script : MonoBeheviour" was changed to "public class Script:MonoBehaviour"

When I did that the script was recompiled in the unity engine and it worked perfectly

 

I had this error because I had a SPACE in my script name..

 

The error (as far as I'm aware) is caused if the name you GAVE the script itself upon creation has any spaces in it.
This is likely due to c# shortening the script name into a single word (since each unique word is separated unless it's a " " string).

Use underscores or camelCase instead of spaces when creating a fresh script, else you will get the native class error as your (insert Scriptname Here).cs won't match your ScriptName : MonoBehaviour.

 

I recently bought a PC and it fixed the problem. Maybe it's mac?

 

I know the issue and solution. If you copy and pasted the code from one script to another, just change the name at the top. it looks like "public class EnemySpawn : MonoBehaviour"

 

Hi I just had a similar problem and fixed it:
1. i named my script Endless Score with a Space
2. but then i tried it with out a space and it worked

so remember to write your script name with no spaces in it
hope this helps people

 

There will be an issue with another script somewhere.

I had this error, I then realised I forgot to amend a public class name from 'trigger' to 'trigger_1' on a script I copied and pasted, when I adjusted that and saved it......all is good again.

 

Make sure your script name matches your class name.

 

I got this error and remembered I changed the name of the script in Unity, but not in Visual Studio. I think the name difference gave me the error. I copied the code (inside the class, not ALL of the code) over to a new C# script (created in Unity and opened in Visual Studio) and it worked fine. Hope this helps.

 

On Editor 2020.2 : The name of the file and the name of the class must be the same, taking into account the case.

 

Bang on. Such an easy thing to miss.

 

Yeah thanks for this. Looking back on it I'm fairly sure this was the problem.

 

Thanks for the help

 

Hello my friend, the error is because of the namespace

 

i had this error happen to me but it was on one script

 

I fixed that Problem,
click on Player, then in the Inspector(on right site) Add component, new script, und create now script, to evade this bug. this bug don`t come out.