Ios pod DifferenceKit failed to display Unable to find

iOS uses pod to search and install DifferenceKit prompts that the installation failed and could not be found. Is there any way to solve it? Or the problem of uploading by the author himself. All other pod libraries are normal:

Unable to find a pod with name, author, summary, or description matching DifferenceKit

if it is the author"s own problem, how to manually install DifferenceKit as a third-party library?

Feb.19,2022

can be found as follows.
you may not find that repo has not been updated. Execute pod repo update

.
-> DifferenceKit (0.7.1)
   A fast and flexible O(n) difference algorithm framework for Swift collection.
   pod 'DifferenceKit', '~> 0.7.1'
   - Homepage: https://github.com/ra1028/DifferenceKit
   - Source:   https://github.com/ra1028/DifferenceKit.git
   - Versions: 0.7.1, 0.7.0, 0.6.0, 0.5.3, 0.5.2, 0.5.1, 0.5.0, 0.4.1, 0.4.0,
   0.3.0, 0.2.0, 0.1.0 [master repo]
   - Subspecs:
     - DifferenceKit/Core (0.7.1)
     - DifferenceKit/UIKitExtension (0.7.1)
     - DifferenceKit/AppKitExtension (0.7.1)
Menu