Unable to find a specification for `React-Core` depended upon by `rn-fetch-blob`

I got the following error after the following command:

pod install

[!] Unable to find a specification for React-Core depended upon by rn-fetch-blob

You have either:

• out-of-date source repos which you can update with pod repo update or with pod install --repo-update.
• mistyped the name or version.
• not added the source repo that hosts the Podspec to your Podfile.

Note: as of CocoaPods 1.0, pod repo update does not happen on pod install by default.

Versions: “react-native”: “0.59.5”, “rn-fetch-blob”: “^0.10.16”,

Podfile:

...
pod 'rn-fetch-blob', :path => '../node_modules/rn-fetch-blob'
...

What Am I doing wrong? Is it an issue related to the version of the library?

Thanks

[MarianBe]

change your package.json from "rn-fetch-blob": "^0.10.15" to "rn-fetch-blob": "0.10.15", clean node_modules and npm install again

[byk04712]

In rn-fetch-blob.podspec file，update here s.dependency 'React-Core' change ‘-’ to ‘/’