Getting error undefined method << for nilClass

[Mike Colvin]

I am really struggling with this but probably very simple for ruby programmer.

I am trying to verify a value in a webpage:

wait_for {is_displayed? MASTER}

    click GLOBAL

    wait_for {is_displayed? ACRECEIVABLE}

    click ACRECEIVABLE

    wait_for {is_displayed? AR01}

    click AR01

    click AR1001

    puts AR1001TOTALAMT

    puts AR1001ROW

    totalcount = '2,139.471.00'

    rowtest = '986'

    wait_for { @driver.find_element(:xpath, "//table[@id='rt_NS_']/tbody/tr[2]/td/table/tbody/tr/td/span") }

    verify {(@driver.find_element(:xpath, "//table[@id='rt_NS_']/tbody/tr[2]/td/table/tbody/tr[2]/td/table/tbody/tr/td[2]/span").text).should == "2,139.471.00"}    <--------- This line works perfectly!

    verify { (@driver.find_element(:xpath, "//table[@id='rt_NS_']/tbody/tr[2]/td/table/tbody/tr[2]/td/table/tbody/tr[2]/td[2]/span").text).should == totalcount }     <--------- Same element but trying to pass variable

    verify { (@driver.find_element(:xpath, "//table[@id='rt_NS_']/tbody/tr[2]/td/table/tbody/tr[2]/td/table/tbody/tr/td[2]/span").text).should == "986" }               <--------- This line works perfectly!

    verify { (@driver.find_element(:xpath, "//table[@id='rt_NS_']/tbody/tr[2]/td/table/tbody/tr[2]/td/table/tbody/tr/td[2]/span").text).should == rowtest }            <--------- Same element but trying to pass variable

    wait_for { @driver.find_element(:xpath, "//table[@id='rt_NS_']/tbody/tr[2]/td/table/tbody/tr/td/span") }

Any help would be appreciated.

[Mike Colvin]

OK Found the issue and resolved