Cocoapods don't install or update

Question

I downloaded a client project that uses pods versioned in the project but when I run pod install or update, I receive this error:

[!] The IMFormatsAndValidations pod failed to validate due to 2 errors:

- ERROR | attributes: Missing required attribute `homepage`.
- ERROR | attributes: Missing required attribute `source`.

Any one know how can I solve this problem? How add this Missing attribute

Answer 1

Insert the below lines in the podspec file

s.summary = 'Librairy summary'
s.homepage = 'http://your.librairy.homepage'