I'm having trouble with iCloud key value store. I currently have a core data synced by iCloud working, but I cannot get K-V Store to work I'm getting:

com.domain.appname has no valid com.apple.developer.ubiquity-kvstore-identifier entitlement

com.domain.appname is the format of my appid, masked for privacy.

This has been around for a while, and I've seen people having this issue and when reinstalling the app the issue is gone, but that won't apply to me. Don't know why.

My entitlements:

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
    <key>com.apple.developer.ubiquity-container-identifiers</key>
    <array>
        <string>$(TeamIdentifierPrefix)com.domain.appname</string>
    </array>
    <key>com.apple.developer.ubiquity-kvstore-identifier</key>
    <string>$(TeamIdentifierPrefix)com.domain.appname</string>
    <key>keychain-access-groups</key>
    <array>
        <string>$(TeamIdentifierPrefix)com.domain.appname</string>
    </array>
</dict>
</plist>

If you need anything else just ask, Thank you!

• ios
• icloud
• key-value-store
• nsubiquitouskeyvaluestore

this link worked for me. Try this. Reinstall the app as well as quit the xcode and restart the device. It will work fine.

Simply, the error is saying that the com.apple.developer.ubiquity-kvstore-identifier "Key" is missing from the entitlement file which had generated when you enabled iCloud in capabilities. Follow the steps in the screenshot I attached:

or 1. just go to the entitlement file and right click on any row and choose Show Raw Keys/Values

2. When you hover over Entitlement File row (at the top), a plus button will appear.

3. Click it and drop down list will appear, choose com.apple.developer.ubiquity-kvstore-identifier and for the value just copy and paste this $(AppIdentifierPrefix)YOUR_BUNDLE_ID

4. Clean. Build. And Enjoy.

Entitlement file screen shot