SPSS warning- no chi-square computed cuz >/= 1 variable is computed as a constant

[SoConfused]

What does this SPSS warning mean?

"No measures of association are computed for the crosstabulation of SocialStress and IPI. At least one variable in each 2-way table upon which measures of association are computed is a constant."

[SoConfused]

Never mind- I'm an idiot. For one variable the only entered values were "1" (yes) because I forgot to convert sysmis to "0" (no)- so of course it appeared to be constant! Hope this helps some other poor sap :-)

SoConfused wrote

What does this SPSS warning mean?

"No measures of association are computed for the crosstabulation of SocialStress and IPI. At least one variable in each 2-way table upon which measures of association are computed is a constant."