Hi ,If you can't access your models then  handle null condition in your sightly by using  <data-sly-test > .Thanks

hi ,you need to add @Optional in your case if property values are not mandatoryPlease check Apache Sling :: Sling Models

You should only use one version as it doesn't work .Tried and Tested .Not advisable .

Hi Please refer to the below link AEM Developer Learning : Sling Model Exporter in AEM 6.3

Hi naziyap131007 You can get all the logs here access the tools in aem click on replication or search for replication on your search bar and Double-click the link to agents for the appropriate environment ,Click the appropriate agent name (which is a link) to show detailed information on that agent:...

Hi tadreeves​a)Please refer this thread Compatible Solr version for AEM 6.3 b)You can get the solrconfig.xml on this path /libs/social/config/datastore/msrp/solr4/solrconfig.xml Thanks !!

Hi kusumam24182037 You can refer to this two link ,it has detail description for the same and videos too.AEM Developer Learning : Deep Dive on Sling Models in AEM6.3 : Part-1 AEM Developer Learning : Deep Dive on Sling Model in AEM 6.3 : Part-2 Happy to help !Thanks

HiDid you give the sling:resourceType for the given field ?Thanks

hi janellic4 ,This link can help you understand why you are getting 200 and not 404 response .https://experiencemanaged.com/posts/efficient-error-handling-with-aem-dispatcher-and-apache-web-server.html​Thanks 

Hi kanthetis58563433 Please check your HTML file maybe there is a problem in some class you been using in your code .Check the below thread AEM 6.1 SP1 Component height not calculated correctly in edit mode touch UI Thanks