What step should a system administrator take if developers can't see a new content library in Qlik Sense?

Providing access via a security rule is crucial in Qlik Sense because it helps ensure that only authorized users can see and interact with specific content libraries. Security rules manage permissions and allow administrators to define who can access what resources within Qlik Sense. If developers cannot see a new content library, it's likely due to inadequate permissions assigned through the existing security rules.

By creating or modifying a security rule to explicitly grant the necessary access to the content library for the developers, you enable them to view and utilize the resources as needed. This process safeguards data while allowing efficient collaboration and utilization of the Qlik Sense environment.

The other options don’t address the core issue related to visibility and permissions. Restarting Qlik Sense services, clearing the QMC cache, or updating the content library file path might resolve other technical issues, but they won't ensure that developers have the appropriate rights to access the newly created content library.