Lightning Web Components – Not available in app builder

I’m developing a lightning web component with org based development and I’m finding that the component isn’t available in the app builder, despite (as far as I can tell) making it available in the component definition. I’ve attempted this with a my own component and also directly copying the “HelloWorld” Lightning component in this trailhead:

Create a Hello World Lightning Web Component

My component is pretty simple, and I’d like it to be available on the Contact record page. Here is the config on that component:

    <?xml version="1.0" encoding="UTF-8"?>
<LightningComponentBundle xmlns="http://soap.sforce.com/2006/04/metadata" fqn="contact_CRSProfileLayout">
    <apiVersion>45.0</apiVersion>
    <description>Use this component to display the fields from this person's related CRS Profile</description>
    <masterLabel>CRS Profile</masterLabel>
    <isExposed>true</isExposed>  
    <targets>
        <target>lightning__RecordPage</target>
    </targets>
    <targetConfigs>
        <targetConfig targets="lightning__RecordPage">
            <objects>
                <object>Contact</object>
            </objects> 
        </targetConfig>
    </targetConfigs>
</LightningComponentBundle>

I’ve deployed the components into my sandbox from Visual Studio Code using the “SFDX: Deploy Source to Org” command and I can see that the lighting web components are in the sandbox when I navigate to them in the admin interface (I can’t confirm that they exactly match what I’m seeing in Source, but I can see the timestamp of their update is correct).

However, neither of them are appearing in the ap builder. I would expect both to appear on a record page app builder and the hellowWorld component only to appear on a home page Lightning Page.

Are there general troubleshooting steps I should be taking?

Answer

<isExposed>true</isExposed> 

Attribution
Source : Link , Question Author : Bigears , Answer Author : Community