!2 An exception is thrown if the empty column is missing.
!|fitlibrary.spec.SpecifyFixture|
|!-<table border="1" cellspacing="0">
<tr><td>fitlibrary.specify.CalculateFixtureUnderTest</td></tr>
</table>
<table>
<tr><td>calculate</td></tr>
<tr><td>unknownField</td></tr>
</table>-!|!-<table border="1" cellspacing="0">
<tr><td>fitlibrary.specify.CalculateFixtureUnderTest</td></tr>
</table>
<table>
<tr><td>calculate</td></tr>
<tr><td class="error">unknownField<hr/> <span class="fit_label">No calculated column</span></td></tr>
</table>-!|