If your Sling Models are not working..... | Community
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Adobe Employee
April 23, 2015
Solved

If your Sling Models are not working.....

  • April 23, 2015
  • 3 replies
  • 2345 views

You need to have:

org.apache.sling.models.api.1-1.0.jar installed in the OSGI console, system/console/bundles. Before doing extensive troubleshooting, be sure this bundle is installed. The error might look something like this:

Failed installing bundle : Unable to install/update bundle from dir C:\Users : Unresolved constraint in bundle com.adobe.training.dc.core [393]: Unable to resolve 393.0: missing requirement [393.0] osgi.wiring.package; (&(osgi.wiring.package=org.apache.sling.models.annotations)(version>=1.1.0)(!(version>=2.0.0)))

Unable to install/update bundle from dir C:\Users: Unresolved constraint in bundle com.adobe.training.dc.core [393]: Unable to resolve 393.0: missing requirement [393.0] osgi.wiring.package; (&(osgi.wiring.package=org.apache.sling.models.annotations)(version>=1.1.0)(!(version>=2.0.0)))

Best answer by JamesTa6

Also, do not forget to delete the old bundle that wasn't working from system/console/bundles

3 replies

JamesTa6Adobe EmployeeAuthorAccepted solution
Adobe Employee
April 23, 2015

Also, do not forget to delete the old bundle that wasn't working from system/console/bundles

chanchalesj6077
Level 2
August 29, 2017

what if you have WCMUSEPOJO working but not the sling models as sling models-->@postconstruct method not at all being called form the HTL component in AEM 6.3 .

Any clue ?

AmitVishwakarma
Community Advisor
Community Advisor
January 18, 2025

To resolve the issue:

  1. Install the missing bundle: Ensure org.apache.sling.models.api version 1.1.0+ is installed in AEM via the OSGi console (/system/console/bundles).
  2. Update bundle version: If already installed, ensure it’s version 1.1.0 or higher.
  3. Reinstall affected bundle: Reinstall the com.adobe.training.dc.core bundle after the dependency is resolved.
  4. Restart AEM: Restart AEM to apply the changes.

This should fix the unresolved dependency error.