error: (DecodingError) typeMismatch(Swift.Int, Swift.DecodingError.Context(codingPath: [CodingKeys(stringValue: "preferredProjectObjectVersion", intValue: nil)] […]))

[F1248]

Context 🕵️‍♀️

• Xcode 16.1 beta 2 (16B5014f)
• Xcode project format: Xcode 16.0 (objectVersion = 77)
• Periphery 2.21.1
• XcodeProj 8.24.1

project.pbxproj:

// !$*UTF8*$!
{
	objectVersion = 77;
	objects = {
[…]
/* Begin PBXProject section */
		XXXXXXXXXXXXXXXXXXXXXXXX /* Project object */ = {
			isa = PBXProject;
			[…]
			preferredProjectObjectVersion = 77;
			[…]
		};
/* End PBXProject section */
[…]
	};
	rootObject = XXXXXXXXXXXXXXXXXXXXXXXX /* Project object */;
}

What 🌱

When I try to scan my project with Periphery, that uses XcodeProj, with periphery scan, I get this error message:

error: (DecodingError) typeMismatch(Swift.Int, Swift.DecodingError.Context(codingPath: [CodingKeys(stringValue: "preferredProjectObjectVersion", intValue: nil)], debugDescription: "Expected to decode Int but found a string instead.", underlyingError: nil))

It seems that for my project, #854 doesn't work as expected.

[pepicrft]

@F1248 would you mind including a small Xcode project where we can reproduce the issue?

[F1248]

@pepicrft

I created this project from scratch using Xcode 16.1 beta 2 (16B5014f):
Create New Project… → Multipl→ App

% cd Test
% periphery scan --setup
Welcome to Periphery!
This guided setup will help you select the appropriate configuration for your project.

* Inspecting project...

error: (DecodingError) typeMismatch(Swift.Int, Swift.DecodingError.Context(codingPath: [CodingKeys(stringValue: "preferredProjectObjectVersion", intValue: nil)], debugDescription: "Expected to decode Int but found a string instead.", underlyingError: nil))

[aksh1t]

I can reproduce this as well on a fresh iOS project created with Xcode 16 (16A242d).

[pepicrft]

I opened a PR addressing the issue

[aksh1t]

Can confirm your PR fixes the issue! Thanks for the quick fix!