"Failed to set plugin placeholders" message?

Question

Xcode 9.1 Simulator 10.0 OSX 10.12.6

I would like to upload a new build of my sticker pack to iTunes Connect. But Product > Archive is grayed out. So I ran the Simulator and got ""Failed to set plugin placeholders for (name)."

Only one answer anywhere in the whole world -- delete Derived Data Folder. I did and got same error message.

BTW Under General in Xcode the Version is 1. The build is 1.4. Does the build number have to be changed somewhere else as well?

No one? I'm the only one this is happening to? – markgrant Nov 26 '17 at 02:27 — markgrant, Nov 26 '17 at 02:27
Did you found a solution for this? – CeccoCQ Nov 29 '17 at 15:51 — CeccoCQ, Nov 29 '17 at 15:51

score 76 · Answer 1 · answered Sep 03 '18 at 21:45

76

What worked for me, Go to your target Build Phases and on "Embedded App Extensions" check the "Copy only when installing" checkbox.

answered Sep 03 '18 at 21:45

James Rochabrun

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What does that flag do? – Manuel Oct 14 '19 at 00:52
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Thank you, James. Much appreciated. – Shadab Mehdi Jan 05 '21 at 13:57
thank you James best solve – islam XDeveloper Mar 28 '21 at 13:29

score 29 · Answer 2 · answered Jan 04 '18 at 11:47

I had the same problem today. In my situation I had a different identifier in my original app than in the extension identifier "base". The extension has to have the same identifier as the original app plus something else.

E.g:

Dummy App: com.company.dummy-app
Dummy App Extension: com.company.dummy-app.extensionName

After Xcode told me that, I changed my wrong names to look like above and then the problem occurred: The problem was, that I had "automatic manage signing" turned on but Xcode didn't recognize that I changed the identifier.

Solution: Just change the identifier again and check if "automatic manage signing" has created a new provisioning profile. Deleting derived data may also helps.

This worked for me. Even though Xcode labeled the correct bundle id in the provisioning profile info modal. I just had to continually add and remove letters from my bundle ID until the certificates were correctly assigned. — Dylan Moore, Jul 26 '18 at 04:59

score 7 · Answer 3 · answered Nov 28 '17 at 23:43

7

It took me a while to find the fix for this. First go to build phases click the X beside the embedded and delete it. This should fix the problem it is what worked for me.

answered Nov 28 '17 at 23:43

M. Ziegenhorn

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Thank you - much appreciated – Andrew Bennett Jan 25 '18 at 01:07

score 5 · Answer 4 · answered Dec 23 '19 at 10:42

You must have different bundleIds for your project and extension.

Example:

App bundleId: com.companyName.appName
Extension bundleId: com.companyName.appName.extensionName

I got this error when I set one configuration file for my project and notification service.

I changed the notification service configuration file to the correct one and this fixed my problem.

score 3 · Answer 5 · edited Mar 10 '19 at 17:12

3

This is the solution:

app bundle identifier: com.SohaibSiddique.ShopApp
extension bundle identifier: com.SohaibSiddique.ShopApp.Notification

It may work for you.

edited Mar 10 '19 at 17:12

double-beep

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answered Mar 10 '19 at 17:10

Sohaib Siddique

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score 2 · Answer 6 · answered Sep 08 '19 at 08:11

It may also happen if the bundle identifier of the extension doesn't have the app identifier as a prefix.

E.g. this would raise the OP issue:

com.example.App
com.example.AppExtension

Instead:

com.example.App
com.example.App.Extension

will work as expected.

score 2 · Answer 7 · answered Nov 12 '19 at 09:29

2

Click details button in Error prompt and check the error log. In mycase it was "bundleVersion must be set in placeholder attributes for a plugin placeholder", Build version was empty in one of my target led me into this error.

answered Nov 12 '19 at 09:29

jeff ayan

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score 1 · Answer 8 · answered Feb 17 '18 at 14:25

1

A clean and rebuild will often fix this issue. If that doesn't work, try removing appex files which often cache items which xcode should have rebuilt:

find ~/Library/Developer/Xcode/DerivedData -name "*.appex" -exec rm -fr {} \;

answered Feb 17 '18 at 14:25

JamesDill

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score 1 · Answer 9 · answered Sep 22 '20 at 10:45

In my case, even though I was respecting the your.bundle.identifiex.<+extensionSuffixHere> format, I had both the Widget and AppExtension with the same bundle Id.

Apparently, even though on build time it doesn't create any problem, on runtime it gave me this error. So remember to set differently in case you're in the same situation!

score 0 · Answer 10 · answered Mar 22 '19 at 10:24

0

Product->Clean Build Folder

Solved it for me.

answered Mar 22 '19 at 10:24

Stephen

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"Failed to set plugin placeholders" message?

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