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Recently we moved from code-first to Sitecore-first approach. After deploying the react and sitecore in Sitecore-first mode, we can't see the renderings on the page.
Getting below error
"JSS Component is missing React implementation. See the developer console for more information"
Console has below message
Placeholder page-content contains unknown component. Ensure that a React component exists for it, and that it is registered in your componentFactory.js.
This error occurs when the Renderings defined in Sitecore and the components defined in the JSS app do not match.
Rishi - You said you deployed using jss deploy files - this command deploys the JS bundle, but does not create any Sitecore items.
When switching from Code-First to Sitecore-First, it is recommended to use jss deploy app to ensure that files, and Sitecore items (template, rendering definitions) get imported. If you need to import content too, then use jss deploy app -c
When the import runs, pay attention to the output in the terminal. Make sure there are no errors.
If the above steps were followed and you are still seeing this error, check the following:
src/boot/componentFactory.js for exported JS component names)<SitecoreRoot>/dist/appName to verify that it's actually getting deployed. If it's not, verify that the values in your scjssconfig.js and your JSS XML configs (Sitecore path, API path, deployment secret etc) are as expected.The root cause of this can be multiple:
rendering and component name mentioned over there. Component name should match with the name mentioned in the rendering and componentFactory file in case of ReactJSSitecore first, either reactJS deployment has not done yet or component name not matching with the name mentioned in the rendering.Hoping this will help!.
Thanks
