Error in knime_2.12.1 Linux verison - Workflow did not execute successfully

Hello All,

we are facing the below issue, when we ran the work flow with batch executor.

can anybody help us.

KNIME version : knime_2.12.1

Operating system : LINUX

 

 

Error :

SLF4J: Failed to load class "org.slf4j.impl.StaticLoggerBinder".
SLF4J: Defaulting to no-operation (NOP) logger implementation
SLF4J: See http://www.slf4j.org/codes.html#StaticLoggerBinder for further details.
WARN     main FileNodePersistor  Unable to load port content for node "MISSING Flow Variable IF Switch (Flow Variable Value)": Invalid outport index in settings: 2
WARN     main FileNodePersistor  Unable to load port content for node "MISSING Flow Variable IF Switch (Flow Variable Value)": Invalid outport index in settings: 2
WARN     main FileNodePersistor  Unable to load port content for node "MISSING Flow Variable IF Switch (Flow Variable Value)": Invalid outport index in settings: 2
WARN     main FileNodePersistor  Unable to load port content for node "MISSING Flow Variable IF Switch (Flow Variable Value)": Invalid outport index in settings: 2
WARN     main FileNodePersistor  Unable to load port content for node "MISSING Flow Variable IF Switch (Flow Variable Value)": Invalid outport index in settings: 2
WARN     KNIME-Worker-1 Database Connector       No database URL provided
ERROR    KNIME-Worker-1 Database Connector       Execution failed in Try-Catch block: Could not create connection to database: oracle.jdbc.OracleDriver
WARN     KNIME-Worker-1 MISSING Flow Variable IF Switch (Flow Variable Value)    Node can't be executed - Node "Flow Variable IF Switch (Flow Variable Value)" not available (provided by "Vernalis (R&D), UK"; plugin "com.vernalis.knime.flowcontrol" is not installed)
WARN     KNIME-Worker-1 MISSING Flow Variable IF Switch (Flow Variable Value)    Node can't be executed - Node "Flow Variable IF Switch (Flow Variable Value)" not available (provided by "Vernalis (R&D), UK"; plugin "com.vernalis.knime.flowcontrol" is not installed)
WARN     KNIME-Worker-1 MISSING Flow Variable IF Switch (Flow Variable Value)    Node can't be executed - Node "Flow Variable IF Switch (Flow Variable Value)" not available (provided by "Vernalis (R&D), UK"; plugin "com.vernalis.knime.flowcontrol" is not installed)
WARN     KNIME-Worker-1 MISSING Flow Variable IF Switch (Flow Variable Value)    Node can't be executed - Node "Flow Variable IF Switch (Flow Variable Value)" not available (provided by "Vernalis (R&D), UK"; plugin "com.vernalis.knime.flowcontrol" is not installed)
WARN     KNIME-Worker-1 MISSING Flow Variable IF Switch (Flow Variable Value)    Node can't be executed - Node "Flow Variable IF Switch (Flow Variable Value)" not available (provided by "Vernalis (R&D), UK"; plugin "com.vernalis.knime.flowcontrol" is not installed)
WARN     KNIME-Worker-2 MISSING Flow Variable IF Switch (Flow Variable Value)    Node can't be executed - Node "Flow Variable IF Switch (Flow Variable Value)" not available (provided by "Vernalis (R&D), UK"; plugin "com.vernalis.knime.flowcontrol" is not installed)
WARN     KNIME-Worker-2 MISSING Flow Variable IF Switch (Flow Variable Value)    Node can't be executed - Node "Flow Variable IF Switch (Flow Variable Value)" not available (provided by "Vernalis (R&D), UK"; plugin "com.vernalis.knime.flowcontrol" is not installed)
INFO     main BatchExecutor      Workflow execution done Finished in 52 secs (52733ms)
INFO     main BatchExecutor      ========= Workflow did not execute sucessfully ============

 

 

"(provided by "Vernalis (R&D), UK"; plugin "com.vernalis.knime.flowcontrol" is not installed)" indicates that the Vernalis Community extension is not installed. See https://tech.knime.org/book/vernalis-nodes-for-knime-trusted-extension.