"Confirm that Java SE (Standard Edition) runtime environment version 1.7 or greater is installed on all servers upon which you have installed the SA-ldapsearch supporting add-on."
This is on their troubleshooting page for the application. I have Java 7 update 7 installed though and still getting the error. Are you running your Deployment server on Windows or *nix? The reason I ask is because I found this post in another thread about this issue:
"
Current known issues
The LDAP search commands (that install on the central Splunk App for
Active Directory instance) do not work on Windows operating systems,
owing to platform compatibility issues. As a workaround, build your central
Splunk instance around the Linux platform (MSAD-73).
·
The LDAP search commands do not work for sub-domains in an AD forest
(MSAD-105).
·
Older versions of the universal forwarder might not correctly get some
Windows events. To fix this issue, upgrade your forwarders to the latest
version. (SPL-51312)
·
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