No MonoBehaviour scripts in this file?? {Answered}

try to check your script name
make sure it do not have space between the name
and the name same with this line:
public class yourscriptname : MonoBehaviour
this is the solution for me...

 

Check the name.

 

Hi, disclaimer before we go on, I can't code to save my life. Just started, I thought unity gave me headaches. Anyway, I'm trying to get a functional cursor lock because someone had the genius idea to remove it during the time I haven't bothered to update so I'm kind of screwed. I'm actually getting decent at unity now but the cursor is a massive problem. At the moment I am trying to use the script provided by unity as an example (trying and failing)and fixing what little I understand. Once I got all but one errors away, same script name and monobehaviour name(?) it claimed it was not under a monobehavior. I changed the name and monobehaviour name to A to be sure, no cheese.

using UnityEngine;

using System;

public class A : MonoBehaviour


{

CursorLockMode wantedMode; ----It wants another identifier here after the bracket for some reason----

// Apply requested cursor state


void SetCursorState(A)


{

Cursor.lockState = wantedMode;

// Hide cursor when locking


Cursor.visible = (CursorLockMode.Locked != wantedMode);

}

void OnGUI()


{

GUILayout.BeginVertical();

// Release cursor on escape keypress


if (Input.GetKeyDown(KeyCode.Escape))


Cursor.lockState = wantedMode = CursorLockMode.None;

switch (Cursor.lockState)


{

case CursorLockMode.None:

GUILayout.Label("Cursor is normal");

if (GUILayout.Button("Lock cursor"))


wantedMode = CursorLockMode.Locked;

if (GUILayout.Button("Confine cursor"))


wantedMode = CursorLockMode.Confined;

break;

case CursorLockMode.Confined:

GUILayout.Label("Cursor is confined");

if (GUILayout.Button("Lock cursor"))


wantedMode = CursorLockMode.Locked;

if (GUILayout.Button("Release cursor"))


wantedMode = CursorLockMode.None;

break;

case CursorLockMode.Locked:

GUILayout.Label("Cursor is locked");

if (GUILayout.Button("Unlock cursor"))


wantedMode = CursorLockMode.None;

if (GUILayout.Button("Confine cursor"))


wantedMode = CursorLockMode.Confined;

break;


}

GUILayout.EndVertical();

SetCursorState();

}

private void SetCursorState()


{

throw new NotImplementedException();


}

}

Any help would be much appreciated. I am currently at the mercy of winging it. A lot harder to do with C# than with Unity engine. It's basically the unity version with the name changed to A. By basically I mean it's identical bar the fact I changed the name to A. I have no idea what I am doing. Fml.

 

Please open a new thread for your problem, this thread has nothing to do with yours.
Also please post your code in code tags. You can find the how-to here.

 

I have this problem too. It is saying no monobehaviour scripts in the file, or their names don't match the file name.
It gave me this error on all the scripts I have. I also made a game that when I ran it in play mode it worked fine but when I build it the whole game was broken. Then I made a new project and made a new script and it instantly had the problem. I try adding it to a empty game object but it just says cant add script behaviour TMP_SelectionCaret. The script needs to derive from MonoBehaviour.

 

who do you go to your docs

 

how do you go to your docs

 

For the people that still encounter this issue:

I had the same problem, even when i switched projects, cleaned projects, reinstalled software or made sure that all the names were correct in the script.

Solution:
In my case i was using some assets from a imported package. In the new assets there was a script that contained an error/wasnt working properly. After erasing this script everything worked again. So make sure to check your errors from an imported package to find that S***ty script that is wasting your time.

hope it helps for some of the people!

 

well i did that no change. help

 

This did nothing

 

If you want help, post: your entire script in code tags(!). Screenshot of your editor when your selection is on the same file and the file name and the inspector is visible and the exact error or errors (if you have more, it's important!).

 

i met the same problem,i changed my file name and class name but it still didn't work.but i figured out that i had new a 3D project but import 2D Assets..... then i new another 2D project and copy the code into it then it works......

 

I've had this happen twice now with previously working classes and files. Re-importing didn't seem to make a difference, nor closing Unity and deleting the script assemblies in the Library directory. Had to recreate new files both times and then copy back over the GUID in the meta file to re-establish any links to prefabs.

Unity must be caching something... somewhere. It's very mysterious.

 

Thank goodness. This worked for me. When I'd started to create a new script I accidentally named it '....-.cs'. I then renamed it. The fix was to delete it, recreate it, re-import all. Many thanks!

 

If you have problems with Package Cache - Go to "Help" tab, and click "Reset packages to defaults"

 

If you get this error after changing the name of a script then make sure you do not call the changed script in any other scripts. If you do you need to change the name inside of that script too.

 

This worked on a fresh install of 2020.1.8f1 Personal

 

I know this is a late reply but I still got this issue in 2020.1.2f1 version.

1) My All Scripts Got the same error "No Monobehaviour Scripts in the file...."
2) I Created A New Script. Copied the Script Content and Matched the Names But Still Same Error.
3) I reimported All The Assets but that doesn't worked.
4) Restarted the Unity and VS many times but Not worked.
5) Set the "Edit/Preferences/External tools" to VS and opened project in VS again but doesn't worked.
6) I have Unity buildtools installed for VS.

At last I managed to Solve the issue by.

1) Open your project in unity and wait to load completly.
2) Goto Console ( At the bottom left side ) and Click on "Clear" Button.
3) Once you clicked the Clear button Check for the remaining errors.
4) Solve all the errors one by one.
5) Wait for unity to reimport all the prefabs.
6) And Done.

I hope It will Help.

Actually last night I saved my project with an error which i didn't know that time. I had an reference error in my one script. The next day when I opened my project again I got All my scripts with the monobehaviour error. I am so happy that I solved it at last lol.

 

This resolved the issue for me http://answers.unity.com/answers/1800017/view.html

 

I got the same issue and lots of the errors are on a dll that exists more than once, I deleted all the objects that I dragged more than once into the scene and it is still complaining about the exact same issue.
The error messages are definitely not clear enough to understand where the problem is and feels like unity is complaining about the wrong things.

 

hello i just got unity and i watched a video how too make a game everything when ok but then i tried to open the c# script then i would press the c# script it would just say were do you what to put his file, and i put it in unity hub because i thought it would work but it did not no it goes to unity hub
please help

 

Please don't post to 6-year-old unrelated threads. It is against forum rules.

Instead, create your own post, it's FREE!

When you post, here is how to report your problem productively in the Unity3D forums:

http://plbm.com/?p=220

How to understand compiler and other errors and even fix them yourself:

https://forum.unity.com/threads/ass...3-syntax-error-expected.1039702/#post-6730855

If you post a code snippet, ALWAYS USE CODE TAGS:

How to use code tags: https://forum.unity.com/threads/using-code-tags-properly.143875/