CocoaPods/CocoaPods

cocoapods cannot find dependency in secondary source

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#10,961 opened on Sep 21, 2021

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help wanteds2:confirmedt2:defect

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Description

Hello,

I'm using v1.11.2.

I have the following Podfile, the Tanker pod depends on POSInputStreamLibrary which is available on the Cocoapods CDN:

source 'https://cdn.cocoapods.org/'

platform :ios, '9.0'

target 'CompatTests' do
  use_frameworks!
  pod 'Tanker', '2.21.0', :source => 'https://github.com/TankerHQ/PodSpecs.git'
end

Tanker is on a secondary source. Running pod install --repo-update fails with the following output:

Updating local specs repositories
Analyzing dependencies
[!] Unable to find a specification for `POSInputStreamLibrary` depended upon by `Tanker`

You have either:
 * mistyped the name or version.
 * not added the source repo that hosts the Podspec to your Podfile.

If I add pod 'PromiseKit', '~> 1.7' just before the pod 'Tanker' it works!

I suspect this issue arises when having a single dependency in the Podfile.

Contributor guide

Research direction
Investigate the Podfile dependency resolution logic in CocoaPods, focusing on how transitive dependencies from secondary sources are resolved when there is only one direct dependency. Look at the resolver code, especially around source handling and dependency graph construction. Replicate the issue and test with additional dummy pods to isolate the problem.
Tech stack
ruby
Domain
mobile
Issue type
Bug
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
2
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
1-3 hours
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
Active
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Clear
Prerequisites
CocoaPodsRuby
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
65