Before you install the packages to your org, be sure you have set a custom Salesforce domain for your organization. If you don’t set the custom domain, you won’t be able to see Lightning Components in the Custom - Managed section of the Lightning App Builder while setting up your Lightning pages.
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Navigate to Setup > Company Settings > My Domain
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Check for the availability of a domain and register it
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After the domain has been registered, refresh the page. You will need to log in to the new domain for the org in order to continue the process. Click on the Log in button and enter your credentials.
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After logging in, click Deploy to Users
