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I got an error on Xcode saying that there was no information about the view controller.
Could not insert new outlet connection: Could not find any information for the class named
Why is this happening?
Here are some things that can fix this (in increasing order of difficulty):
Clean the project (Product > Clean)
Manually paste in
#IBOutlet weak var viewName: UIView!
// or
#IBAction func viewTapped(_ sender: Any) { }
and control drag to it. (Change type as needed.) Also see this.
Completely close Xcode and restart your project.
Delete the Derived Data folder (Go to Xcode > Preferences > Locations and click the gray arrow by the Derived Data folder. Then delete your project folder.)
Click delete on the class, remove reference (not Move to Trash), and add it back again. (see this answer)
Or if none of the above works, type out the name of the outlet into the file first #IBOutlet weak var headerHeightConstraint: NSLayoutConstraint! and then click and drag from the outlet in the nib to the variable you just programmatically created. It should work without any of the hassle of cleaning, building, and deleting anything.
Just perform the two following steps to get rid of this error
Clean project using Product > clean
Run the project
Now try to add the action or outlet.
That's it.
Happy Coding
None of the tips in the best answer worked for me. Was going crazy. Then noticed that the Assistant Editor had somehow gotten set to Manual and I was on the ViewController.swift (Interface) instead of the ViewController.swift file.
Changed that and problem solved. A bit embarrassing but hey, we are all learning.
Here are the steps solved for me:
Remove Class name reference from View(storyboard/xib) and save;
Add Class name again and save;
Clean and Build;
Done !
I had the same issue. I tired below solutions but didn’t worked :
Clean Project (cmd + shift + k) and even Clean Project Build (cmd + shift + alt + k)
Deleted Derived data and Module Cache content
Below workaround to this issue :
Move to source code file and write the IBOutlet / IBAction manually (copy paste preferred)
Then move to Storyboard file and Open Utilites window
Goto Connection Inspector
Then Connect the IBOutlet and IBAction written in source file with Interface Builder.
I had the same problem. I realised than in X-Code Manual item was selected when I tried to create an outlet by control-drag
After I set it to automatic it worked
I solved this problem by programmatically creating the Labels and Textfields, and then Command-Dragged from the little empty circles on the left of the code to the components on the Storyboard. To illustrate my point: I wrote #IBOutlet weak var HelloLabel: UILabel!, and then pressed Command and dragged the code into the component on the storyboard.
Close the project you are working on with.
Delete your project's【DerivedData】folder. (This folder may inside
your project's folder, or inside
~/Library/Developer/Xcode/DerivedData/
(your project)/) or somewhere else that was setup by you.
restart your project.
I got this bug when I renamed the class. Then I solved it just by following the below steps
In Xcode Menu -> Product -> Clean
Restart the Xcode
I found an easier workaround as I this bug can be found on XCODE 9.
Step one go to your viewcontroller and manually write the property you want to connect as the below example, make sure you use the below format.
#IBOutlet weak var questionsStackView: UIStackView!
Step two go to your storyboard and connect your view or whatever your trying to connect to the property you created in step 1.
The above will save you time of removing and cleaning derived data.
Please perform the following two steps only to get rid of this error.
1. Clean Project using Product -> clean.
2. Run the Project.
Now try to add/Connect the actions or outlets.
Working Fine for me for many times.
In my case this was bc I chose a new UIViewController file in IB and then tried to ctrl-drag to this new controller without first removing the previous connections in the Connections Inspector. Remove those first and try again.
For me it worked when on the right tab > Localization, I checked English check box. Initially only Base was checked. After that I had no more problems. Hope this helps!
I selected Automatic option to select the ViewController.swift file. And then I can able to take outlets.
None of this worked for me but I did figure this out.
Inside the storyboard I copied the corresponding ViewController into the clipboard and deleted it, afterwards I pasted it again.
Suddenly everything was working like a charm again!
It happened when I added a Swift file into an Objective-C project .
So , in this situation what you can do is . .
Select MY_FILE.Swift >> Delete >> Remove Reference
Select MY_FOLDER >> Add MY_FILE.Swift
Voila ! You are good to go .
Simplest solution:- I used xCode 7 and iOS 9.
in your .m
delete #import "VC.h"
save .m and link your outlet again it work fine.
I used xCode 7 and iOS 9.
in your .m
delete #import "VC.h"
save .m and link your outlet again it work fine.
in your .m
add #import "VC.h"
save .m
This question's answers are a community effort. Edit existing answers to improve this post. It is not currently accepting new answers or interactions.
I got an error on Xcode saying that there was no information about the view controller.
Could not insert new outlet connection: Could not find any information for the class named
Why is this happening?
Here are some things that can fix this (in increasing order of difficulty):
Clean the project (Product > Clean)
Manually paste in
#IBOutlet weak var viewName: UIView!
// or
#IBAction func viewTapped(_ sender: Any) { }
and control drag to it. (Change type as needed.) Also see this.
Completely close Xcode and restart your project.
Delete the Derived Data folder (Go to Xcode > Preferences > Locations and click the gray arrow by the Derived Data folder. Then delete your project folder.)
Click delete on the class, remove reference (not Move to Trash), and add it back again. (see this answer)
Or if none of the above works, type out the name of the outlet into the file first #IBOutlet weak var headerHeightConstraint: NSLayoutConstraint! and then click and drag from the outlet in the nib to the variable you just programmatically created. It should work without any of the hassle of cleaning, building, and deleting anything.
Just perform the two following steps to get rid of this error
Clean project using Product > clean
Run the project
Now try to add the action or outlet.
That's it.
Happy Coding
None of the tips in the best answer worked for me. Was going crazy. Then noticed that the Assistant Editor had somehow gotten set to Manual and I was on the ViewController.swift (Interface) instead of the ViewController.swift file.
Changed that and problem solved. A bit embarrassing but hey, we are all learning.
Here are the steps solved for me:
Remove Class name reference from View(storyboard/xib) and save;
Add Class name again and save;
Clean and Build;
Done !
I had the same issue. I tired below solutions but didn’t worked :
Clean Project (cmd + shift + k) and even Clean Project Build (cmd + shift + alt + k)
Deleted Derived data and Module Cache content
Below workaround to this issue :
Move to source code file and write the IBOutlet / IBAction manually (copy paste preferred)
Then move to Storyboard file and Open Utilites window
Goto Connection Inspector
Then Connect the IBOutlet and IBAction written in source file with Interface Builder.
I had the same problem. I realised than in X-Code Manual item was selected when I tried to create an outlet by control-drag
After I set it to automatic it worked
I solved this problem by programmatically creating the Labels and Textfields, and then Command-Dragged from the little empty circles on the left of the code to the components on the Storyboard. To illustrate my point: I wrote #IBOutlet weak var HelloLabel: UILabel!, and then pressed Command and dragged the code into the component on the storyboard.
Close the project you are working on with.
Delete your project's【DerivedData】folder. (This folder may inside
your project's folder, or inside
~/Library/Developer/Xcode/DerivedData/
(your project)/) or somewhere else that was setup by you.
restart your project.
I got this bug when I renamed the class. Then I solved it just by following the below steps
In Xcode Menu -> Product -> Clean
Restart the Xcode
I found an easier workaround as I this bug can be found on XCODE 9.
Step one go to your viewcontroller and manually write the property you want to connect as the below example, make sure you use the below format.
#IBOutlet weak var questionsStackView: UIStackView!
Step two go to your storyboard and connect your view or whatever your trying to connect to the property you created in step 1.
The above will save you time of removing and cleaning derived data.
Please perform the following two steps only to get rid of this error.
1. Clean Project using Product -> clean.
2. Run the Project.
Now try to add/Connect the actions or outlets.
Working Fine for me for many times.
In my case this was bc I chose a new UIViewController file in IB and then tried to ctrl-drag to this new controller without first removing the previous connections in the Connections Inspector. Remove those first and try again.
For me it worked when on the right tab > Localization, I checked English check box. Initially only Base was checked. After that I had no more problems. Hope this helps!
I selected Automatic option to select the ViewController.swift file. And then I can able to take outlets.
None of this worked for me but I did figure this out.
Inside the storyboard I copied the corresponding ViewController into the clipboard and deleted it, afterwards I pasted it again.
Suddenly everything was working like a charm again!
It happened when I added a Swift file into an Objective-C project .
So , in this situation what you can do is . .
Select MY_FILE.Swift >> Delete >> Remove Reference
Select MY_FOLDER >> Add MY_FILE.Swift
Voila ! You are good to go .
Simplest solution:- I used xCode 7 and iOS 9.
in your .m
delete #import "VC.h"
save .m and link your outlet again it work fine.
I used xCode 7 and iOS 9.
in your .m
delete #import "VC.h"
save .m and link your outlet again it work fine.
in your .m
add #import "VC.h"
save .m
I have created an .xib file then deleted it by sending it to trash. After that time I have started to take an exception as stated in the title. My project do not use interface builder file(neither storyboard nor xib/nib) at all. I have looked up whole project files but could not see any connection with xib file.
How to fix it?
Thank you
First you should clean your project and delete the app from simulator, and it will be ok. (Even if you deleted the xib to trash, it still exists in the bundle.)
I copied FairListViewController class to my project. I renamed it to ExibitorViewController.
There is an IBOutlet called
UITableView *fairListTableView;
in nib file. I change it with
UITableView *exibitorTableView;
Now every thing works fine. But one thing I notice that the previous tableView IBOutlet (which is fairListTableView here)" name still listed on the
ExibitorViewController.xib > File's Owner > Connection Inspector > OutLets section.
Though it was unconnected and don't bother at all. To erase it, I have to go to the nib xml file. I've done the following steps:
right click on ExibitorViewController.xib
File > Open As > Source Code
search for the (Control+F) fairListTableView
delete the related code from there.
The code I found is :
<string>fairListTableView</string>
<object class="IBToOneOutletInfo">
<string key="name">fairListTableView</string>
<string key="candidateClassName">UITableView</string>
</object>
But after saving and cleaning the project that IBOutlet still shows up there. If anyone knows the tricks to remove it, please share with me.
Sometimes I have the same problem. Make sure you remove it from the Interface Builder, Product -> Clean and then restart Xcode.
That usually does the trick for me
Have you tried removing it in Interface Builder, instead of changing the .xib XML? XCode most likely saves what's present in Interface Builder when quitting, so it may overwrite any changes you did manually.
I found that I needed to delete the DerivedData folder for my project to get the "cached" IB references to be removed. Clean and restart was not working.
Using Swift and xCode 7.2. YMMV
Location ~/Library/Developer/Xcode/DerivedData/ More info about this is here.
I'm trying to create a nib that contains a view that will be embedded in a TableViewCell. I've created the interface and implementation files, ResultCell.h and ResultCell.m. They're stock, out-of-the-box, no code changes.
I then create an empty XIB file, and drag a UIView onto it. Then I click File's Owner, and set the type to ResultCell. I click the view, and set its class to also be ResultCell.
Here are the problems I have:
When using the Assistant Editor view (which I live in), the ResultCell.h file doesn't appear when I'm viewing the ResultCell.xib file. I have to force it to load by clicking on Automatic and selecting the file.
When I drop a label in the view, and then Ctrl+Click and drag to the .h to create an outlet, I get this error message: "Could not insert new outlet connection: Could not find any information about the class named ResultCell."
I've tried creating and re-creating the view, and it's just not working, and I've started to lose my patience. Any help would be very, very appreciated!
I got into a similar state just today. It was very odd: I could attach any XIB (new or existing) to any already-existing ViewController class in the project, but I could not create a new ViewController and have it attach properly to any XIB. The "assistant" functionality didn't work, nor did the IB-to-headerfile-connection functionality.
Closing the project and re-opening did not fix it.
Quitting XCode and restarting did not fix it.
Creating a new project and testing the functionality worked fine, which led me to believe there was something corrupt in some cache somewhere.
My solution
Close your project.
Go to the ~/Library/Developer/XCode/DerivedData folder and REMOVE all subfolders there referencing the project you are working on.
Open your project in XCode. The problem should be fixed now.
Incidentally, just running a full clean did not seem to clear things up. I had to trash the derived data. I'm certain I got into this position because of git games I was playing, but I had no idea how to get out, because even switching back to earlier git revisions didn't help. (That was a big clue also that it was something untracked by the project itself.)
This might not work for your specific issue, but occasionally I get that error when working with newly created nibs. Deleting and recreating the nibs and View Controllers with the same names as before didn't resolve the issue, but relaunching Xcode did.
I just had this problem and restarting Xcode did not fix it. I removed the class files from the project then added them back in and it started working.
I had the very same issue. And I tried :
Restarting Xcode
Deleting Derived Data
And many more
None of that worked. What worked for me was simply to :
Remove 'suspect' class files from Project (just remove References, huh?)
Re-add them to the project
And done!
If restarting Xcode doesn't work of you, I have found that Toggling the new .m file out and back into the target membership works.
This helped me out:
from the project file Panel (left side) select the xib file that is broken.
Click on the Files Owner icon from the editor view.
from the properties Panel (right side) select the third tab (at the top)
specify the "Custom Class"
If you do not see a "panel", please have a look at the top-right corner of the window and enable the proper "view" buttons. If you don't see the "view" buttons then click on the top-right most capsule button.
I noticed that .m file was moved inside en.lproj folder.
Just delete (reference only) the .m file from the Xcode and moved .m out of the en.lproj. Add it again.It will fix the issue.
Don't worry, you will get all your connections back.
I encountered the same problem today. Restarting XCode did not fix the problem for me. I was able to get things back to normal by using "Delete" option of "Derived Data" of the project that can be found under Organizer. Organizer says that, "Derived Data includes index, build output and logs". I guess that either index or build output was causing this issue.
in XCode go to organizer, click project, click delete derived data... than clean the project
In my case it helped to make a "fake change" (just a space) to the according header file.
ResultCell should be a subclass of UITableViewCell
You should not drag a UIView onto the empty canvas, you should drag a UITableViewCell
You should select the cell and change it to be your subclass
The owner is most often a controller with an outlet to the cell
Everytime you want to load a new cell, call:
[[NSBundle mainBundle] loadNibNamed:nibName
owner:controllerWithOutletToCell
options:nil]
after loading, use the cell, and set the ivar/outlet to nil, ready for the next load
there are other ways, but this is common
Perhaps what worked for me is this.. (Xcode v4.5)
This did not work
I was trying to control drag into the interface definition of my .h
#interface SearchViewController : UIViewController
#end
This worked (may be that is how it was supposed to work, I did not know it before)
See the open and close brackets. Control drag and drop after the closed bracket.
#interface SearchViewController : UIViewController
{
}
#end
I had a similar problem with a project written in Swift.
What worked for me was setting up the IBOutlet in code like this
#IBOutlet var foo: UIView?
and afterwards connect it to Interface Builder by dragging to the little circle that appeared right next to the code line.
None of the above workarounds resolved the connector issue for me so I shelved my pet project until I came across the following stackoverflow thread:
https://stackoverflow.com/a/15873770/2846800
I had been working on a large project in a previous version of XCode and had turned off indexing. By re-enabling indexing my issue is now fixed:
defaults delete com.apple.dt.XCode IDEIndexDisable
I can now use the D&D features of Interface Builder. I hope this can help others...
This problem seems to be an Xcode bug which creeps up mostly when you replace a file with a new file of the same name. Xcode seems to keep a reference of the older file of the same name.
Anyhow, the way to fix this seems to be:
Clean the project
Click (Your Project) in Project Navigator view. Go to Compile Sources under Build Phases of the target for which you are building. Remove and add back the .m file which is giving you trouble.
Alternatively, in the File Inspector (Utilities view) of the NIB file, under Target Membership, uncheck and check back the target name.
Restart Xcode for good measure.
Of course, deleting and adding back the .m file alone should fix it too.
(Steps 1 and 2 alone fixed it for me.)
If you copied files from other project just make sure you check the 'Add to targets' box
Renaming the class files may unlink them from the XIB. This answer helped me discover this:
Ctrl-Drag from button to method not working. Xcode/Interface Builder
Check that your custom class is set correctly in the Identity Inspector.
Similar symptom, but different cause.
Apparently I hit backspace when the focus was on the assistant view, because one of the standard file template comment lines went from // to / which results in the file not compiling.
Fixing the comment allowed the SDK to parse the file, recognize it as a UIViewController, and add in the outlet.
SO -- if you have this problem, do a build or analyze to see if there are errors that need fixing in your view controller .h file. THEN try the other solutions.
This might be an old topic but just in case anyone has the same issue in future, try deleting the associated .xib,.h and .m files and create new ones. For me, the UIViewController in my .h file wasn't purple and even backspacing and typing it didn't help.
Just put a line between the #implementation and the #synthesize. Most of the answers here have that in common. It worked for me
#implementation
#synthesize
I just tried everything here and nothing worked (using a Developer Preview for Xcode 5).
The only thing that worked for me was to put this incomplete line in my interface file:
#property (nonatomic, weak)
For whatever reason, adding outlets and actions by drag and drop from a .xib worked fine after that.
For me wether cleaning nor deleting the DerivedData solved the problem.
I tried to delete and recreate my UIViewController class several times and got the problem again and again.
Then I recreated the UIViewController class and gave it a different name. This solved the problem for me.
I have had this problem and found a solution not listed above.
In my case, I could see there was something wrong in the class .h file because my custom view controller did not recognise the class : UIViewController (it was in black not purple). All the other custom view controllers had the : UIViewController in purple.
in my case, and possibly yours, I needed to add the class to targets/build phases/compile Sources drop down. The .m needs to be added. All of the other .m's were there but not this one.
Once I added it, the :UIViewController appeared in purple and everything worked fine.
For my case, I have multiple project with some other dependencies. I tried to solve it by deleting derived data or restarting XCode but it couldn't work. In the end, I tried the following method and it works:
Go to target > Build Target Architectures Only > and set both Debug and Release to NO.
Set this for all projects in the workspace and recompile to make sure there is no other errors. Maybe not making sense but somehow did it. During my compilation, I had other issues such as linker errors and symbols not found.
For *.m file of this class view open "Show File Inspector" and unchecking "Target membership" for this project, then do Clean (menu Product->Clean) and checking again "Target membership" for this project
Using Swift, I had a similar problem. I found out that the comments were part of the problem for me.
I leveraged the default view controller, did some work in it, then created a second view controller by copying the entire first one, stripping it down to only viewDidLoad() and renaming the class to TestViewController. Builds worked, code executed. All was good.
When I went to drag a UITextField in to create an outlet, it would not let me. I noticed that my comments still said "ViewController.swift", so I changed the comment text to "TestViewController.swift" and rebuilt. I was able to connect my outlet!
I wonder if what occurred is that the Indexer was reading the comments as well as the class names, and somehow got confused.
Hope this helps someone out there.
I just had to delete the derived data folder. You need to click Window -> Organizer -> Projects -> Delete Derived Data
AND RESTART XCODE.
You should be good to go!
The new class not being part of the "TARGET" is likely the root cause of this, as alluded to by some of these answers.
When creating a new cocoa class, by default the option to add new class to target is by default checked, but should, for any reason, this not be checked when you hit save, you will have this issue.
Any of these workarounds that add the new class to the apps target will work to resolve the problem, and is something that all these 'fixes' have in common.
I think XCode likely has some bugs that causes a new file to, by default, NOT be added to the apps main target. The fix boils down to adding your 'broken' class to the main TARGET
In XCode 7.1, adding the connector at a different point in my source file worked. The error I was getting referred to one of my variables as if it were a class (didn't make any sense). The error stopped occurring when I added the connector below that variable instead of above it.
There is also a diferent reason for the issue ... if you have created new cocoa class file with template other than ios ... i can happen...
The solution would be to delete it and re create it with right template