Ruby on Rails

> Simple debugging can be performed using Logger.info, which inserts
> into the log file (eg log/development.log), so you can confirm this by
> inserting, before the problem line
> Logger.info( "expensescounter is: #{@line_item.expensescounter}"

I used logger.info for debugging and it insert in development.log file
that @line_item.expensescounter is nil.

> If it is nil, if you cannot see the problem, you can put additional
> logs in to home in on the problem.
> Also in the log file you will find useful information showing the
> parameters being passed into the action.

I have attached development.log file(productionlog.odt) in my question.

How could i solve this error?

Kind regards.

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