Getting Error

Hi Guys ,

I have Expression rule ( Value_Exp )

union(index(a!queryEntity(
entity: cons!Test_value,
query: a!query(
selection: a!querySelection(columns: {
a!queryColumn(field: "G1")
}),
logicalExpression:
{
a!queryLogicalExpression(
operator: "AND",

filters:
if(rule!APN_isEmpty(ri!Filter_1),{},a!queryFilter(field:"C1",operator:"=",value:ri!Filter_1)),
),

},
pagingInfo: a!pagingInfo(
startIndex: 1,
batchSize: -1
)
)
).data,"G1"),
index(a!queryEntity(
entity: cons!Test_value,
query: a!query(
selection: a!querySelection(columns: {
a!queryColumn(field: "G1")
}),
logicalExpression:
{
a!queryLogicalExpression(
operator: "AND",

filters: if(rule!APN_isEmpty(ri!Filter_1),{},a!queryFilter(field:"C1",operator:"=",value:ri!Filter_F1)
)
),

},
pagingInfo: a!pagingInfo(
startIndex: 1,
batchSize: -1
)
)
).data,"G1")
)

during pass this Expression rule into multiple drop down getting error Ex-

Interface Definition: Expression evaluation error at function a!multipleDropdownField [: A multiple dropdown component [label=“S1G”] has an invalid value for “choiceValues”. Choice values cannot be null.

i have pass local!s!G:rule!Value_Exp( some variable )

a!multipleDropdownField(
label: "S1G",
labelPosition: "ADJACENT",


choiceLabels: local!Var1,
choiceValues: local!Var1,

value: local!S1G,

saveInto: {local!S1G},


),

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