The SAP Agent failed to start after an upgrade with the following error message in the agent's log:
20220825/152404.364 - U00022022 Process 'UC4 SAP01 usnap9210s' ended, exit code='77'.
java.lang.ExceptionInInitializerError: JCo initialization failed with java.lang.UnsatisfiedLinkError: no sapjco3 in java.library.path
at com.sap.conn.jco.rt.MiddlewareJavaRfc.<clinit>(MiddlewareJavaRfc.java:226)
at com.sap.conn.jco.rt.DefaultJCoRuntime.initialize(DefaultJCoRuntime.java:99)
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Release : 12.3.6
Component : SAP Agent
Missing SAP library
Please make sure that the library delivered with the sapjco3.jar is present in the SAP agent's bin directory.
For UNIX/LInux:
libsapjco3.so
For Windows:
sapjco3.dll