Store User given value in an Odi Variable

Hi,
I want to store the recent user given value(at execution time) in a .txt file using shell script.So I want to pass the user given value to the shell script.So in package,I put the the variable in refresh mode as first step and then the odioscommand link by ok.When I try execute this package it fails(*ODI-1246:* The Logical Schema has not been set for Input_Variable).
FYI:-
I just create a simple variable of numeric type.Select the LATEST VALUE for it and schema is undefined.Default value is 0.
After this problem occurred I select oracle schema,memory engine schema etc. and execute the package/scenario again But it result the same.
Please Advice
Thanks
Papai
NB
Here is the problem details:-
ODI-1246: The Logical Schema has not been set for Input_Variable.
at com.sunopsis.dwg.dbobj.SnpSessTask.getDefaultDwgConnectConnection(SnpSessTask.java:508)
at com.sunopsis.dwg.dbobj.SnpSessTaskSqlV.getExecutor(SnpSessTaskSqlV.java:428)
at com.sunopsis.dwg.dbobj.SnpSessTaskSqlV.processTask(SnpSessTaskSqlV.java:405)
at com.sunopsis.dwg.dbobj.SnpSessTaskSql.treatTask(SnpSessTaskSql.java:2625)
at com.sunopsis.dwg.dbobj.SnpSessTaskSqlV.treatTask(SnpSessTaskSqlV.java:240)
at com.sunopsis.dwg.dbobj.SnpSessStep.treatAttachedTasks(SnpSessStep.java:558)
at com.sunopsis.dwg.dbobj.SnpSessStep.treatSessStep(SnpSessStep.java:464)
at com.sunopsis.dwg.dbobj.SnpSession.treatSession(SnpSession.java:2093)
at oracle.odi.runtime.agent.processor.impl.StartSessRequestProcessor$2.doAction(StartSessRequestProcessor.java:366)
at oracle.odi.core.persistence.dwgobject.DwgObjectTemplate.execute(DwgObjectTemplate.java:216)
at oracle.odi.runtime.agent.processor.impl.StartSessRequestProcessor.doProcessStartSessTask(StartSessRequestProcessor.java:300)
at oracle.odi.runtime.agent.processor.impl.StartSessRequestProcessor.access$0(StartSessRequestProcessor.java:292)
at oracle.odi.runtime.agent.processor.impl.StartSessRequestProcessor$StartSessTask.doExecute(StartSessRequestProcessor.java:855)
at oracle.odi.runtime.agent.processor.task.AgentTask.execute(AgentTask.java:126)
at oracle.odi.runtime.agent.support.DefaultAgentTaskExecutor$2.run(DefaultAgentTaskExecutor.java:82)
at java.lang.Thread.run(Thread.java:662)

If you are using it as a refresh variable then you should have one refresh query and the logical schema selected inside it.
If you are using it in set mode then just assign the default value. (No use of refresh query and logical schema.)
If you are using it in declare mode then provide the value in run time. (No use of refresh query and logical schema.)

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