iOS app testing. App installation failed. No code signature found [closed]

Asked 14/7, 2016 at 9:53 Answered 16/1, 2019 at 10:15

Solved ios iphone swift xcode debugging

I've tried to install my app on several iOS devices. But this thing didn't let me to.

I want to know, what the problem is and how should I solve it.

Erastes answered 14/7, 2016 at 9:53 Comment(8)

Have you clean your build or uninstall app from device and install again ? – Fugue 14/7, 2016 at 9:59

surely you need to have a look on app distribution – Abilene 14/7, 2016 at 9:59

@AshishThakkar yes, I've tried to – Erastes 14/7, 2016 at 10:0

have you restart your xcode as well ? – Fugue 14/7, 2016 at 10:5

@AshishThakkar yep, didn't work – Erastes 14/7, 2016 at 10:8

i think you have to changed "other C flags" in Build Settings – Fugue 14/7, 2016 at 10:15

@AshishThakkar it is completely clear. But I've changed my apple ID password. Can this be the case? – Erastes 14/7, 2016 at 10:16

as per my knowledge it might not be an issue. but for safe side i think you have to create new certificate and make sure that your all device udid is added to your account. – Fugue 14/7, 2016 at 10:18

In my case, the problem was unsigned frameworks.

Xcode 11 or above:

Go to Build Phases, expand Embedded Frameworks and select all Code Sign on Copy checkboxes.

Xcode 10 or earlier:

Build Phases > Copy Files > Code Sign on Copy (select all checkboxes)

Triangle answered 21/9, 2016 at 8:24 Comment(6)

doesn't work for xcode 10 – Carltoncarly 3/10, 2018 at 12:12

Embed Frameworks> Check the "Code Sign on Copy" button for all frameworks for XCode 10.1 – Supplication 21/6, 2019 at 6:40

@NupurSharma In Xcode 10.2.1 Embed Frameworks> Check the "Code Sign on Copy" button not working. Do you know any other solution – Gyral 5/7, 2019 at 10:54

I had removed the library which caused this problem. I could not find a single solution working for me. – Supplication 5/7, 2019 at 11:14

I am using cocoa pods so there is no "Code Sing on Copy" in build phase – Agree 21/5, 2020 at 16:58

I am using xCode12. It doesn't work. – Highflown 29/5, 2021 at 15:39

I had this problem, this is what I did to resolve it:

Run "clean" in Xcode
Close Xcode
Remove all data in ~/Library/Developer/Xcode/DerivedData
Remove all xcuserdata folders in your project (check in your xcodeproj and project.xcworkspace directories)

Only if you have Cocoapods in your project:

Run pod deintegrate.
Remove your .xcworkspace if it was created by CocoaPods.
Run pod install or pod update

Now you can open your fresh Xcode.

Hope this help you.

In my case the problem was created by adding a new cocoa touch framework.

Copulative answered 25/3, 2017 at 14:24 Comment(2)

Thanks! Removing ~/Library/Developer/Xcode/DerivedData was enough in my case. – Aulea 19/6, 2018 at 20:8

pod deintegrate worked for me – Deepset 20/4, 2021 at 20:6

If "code sign on copy" fails, then check if you are modifying the frameworks in a run script after the "Embed Frameworks" phase.

If you are, then move the Run script to a position before the "Embed Frameworks" phase.

Patel answered 10/7, 2018 at 14:22 Comment(4)

Can you explain how to do that? – Supplication 21/6, 2019 at 6:42

From Target -> Build Phases you are able to drag and reorder the different tasks – Calderon 20/8, 2019 at 20:25

Thank you, this was the issue for me. – Dekko 29/4, 2020 at 15:26

Dueeeedeeeee, I cant thank you more. I have been looking for the solution for past 4 days. This now makes total sense. Thanks a lot. – Gaeta 12/5, 2020 at 8:1

In my case, I have created an unsigned IPA file and for this i had made some changes in SDKSetting.plist file (changed CODE_SIGNING_REQUIRED = NO) and it should be always YES if you are running application on the device.

To resolve this follow the below steps: Steps to create unsigned IPA (Tested on Xcode 9.4.1)

Step 1: Open finder > Go to Folder.. as below screen

and then copy and past the below line:

/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS*.*.sdk/SDKSettings.plist

Open iPhoneOS.sdk as showing in below image:

Step 2: Copy the SDKSettings plist in another folder because you can't make changes here:

Step 3: Make the change in duplicate

set CODE_SIGNING_REQUIRED to YES

Step 4: Now replace duplicate Plist with the original one (Both names must be the same). This will also ask admin permission to change.

********************************OR**************************************

If you will update your Xcode then the problem will also disappear because updated xcode will come with default SDKSetting.plist

Node answered 10/8, 2018 at 5:37 Comment(5)

My first question is why it would even turn into NO. This has to be YES all the time. I know why in my system it was NO because I installed iOSOpenDev Installer. This doesnt fix the issue. – Riffle 13/9, 2018 at 18:20

@Alix in my case, I had created an unsigned IPA file that's why tuned to NO. – Node 14/9, 2018 at 3:39

I see but then later part of the post is wrong where you said "If you will update your Xcode then the problem will also disappear because updated xcode will come with default SDKSetting.plist". Code Signing Required is by default is YES – Riffle 15/9, 2018 at 7:46

@Alix second point is also correct, I had updated my code to newer available version and it became automatically YES from NO. Because you you will update your xcode the plist comes with default setting and by default it’s always YES. – Node 15/9, 2018 at 7:50

Same problem here, I forgot I did modified SDKSetting.plist to create an unsigned IPA. Reverting AD_HOC_CODE_SIGNING_ALLOWED to NO and restarting XCode got rid of the error message – Plumbing 30/4, 2019 at 8:39

I also faced same issue. I tried all above solution none work from me.

Below stuff worked for me,

Select Build settings
Locate "Code Signing identity"
select "IOS Developer" or any other correct option for all.

Then build and run.

Tubulure answered 16/1, 2019 at 10:15 Comment(1)

You save me. Many many thanks. After lots of solution, I got your answer. – Outcaste 28/8, 2023 at 13:39

Folks, My problem's Root cause was modifications that were done by iOSOpenDev installer. I did restore the original plist file that was backed up by the installer. that solved my problem you need to look into the SDK directory to see if something funky has happened. at least one more option to try.

/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS<SDK version>.sdk/

example:

/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS11.4.sdk/

by default code signing must be turned on, if that is turned off then something funky happened. (for ref See Alok's answer below)
If nothing works. My recommendation would be to delete and reinstall Xcode as this error would not arise in the normal scenarios. So resetting Xcode can greatly reduce troubleshooting time.

Riffle answered 13/9, 2018 at 18:40 Comment(0)

1) Try to clean project 2) Try to relaunch XCode 3) Reset your mac

Symptom answered 14/7, 2016 at 9:59 Comment(2)

I had this situation and I had to restart my iPhone and then it works. Do you have developer accounts or not? If not check this out #4953320 – Carlist 14/7, 2016 at 10:3

nope, didn't work for me – Erastes 14/7, 2016 at 10:8

Restarting my device fixed the problem

Emlen answered 8/3, 2018 at 15:52 Comment(0)

I have some issues during App upload to the Appstore then i Add Some Code in Build Phase -> Run Script

done I clean Build folder and remove t above code from Run Script And Build again and run on my Iphone it work fine

You can remove the code of run script or check the check box of ."Run script only when installing " then also it will work

Shirtmaker answered 30/11, 2018 at 6:36 Comment(0)

Enabling "Automatically manage signing" solved the issue for me. (In the target settings, "General" tab, section "Signing")

Because answered 15/1, 2019 at 13:52 Comment(0)

-4

It is clear you do not have the developer and the distribution profile set for the devices you are trying to install the app.

Gaylagayle answered 14/7, 2016 at 11:51 Comment(2)

I have developer key and have same error, actually it comes after success build, in script executing part. – Triangle 20/9, 2016 at 20:4

There are many things that could cause this, not just the dev/dist profile for the devices. Such as code signing for third party frameworks. – Digitize 23/3, 2017 at 13:25

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