1202 - Expected a variable following 'in'.

Description
The ForEach Function requires a specific syntax "ForEach( .X in .Y ) which has not been adhered to.
Example
Config:
ForEach( .I in ) { }
Output:
c:\Test\fbuild.bff(1):(16) FASTBuild Error #1202 - ForEach() - Expected a variable following 'in'. ForEach( .I in ) ^ \--here
Fix:
ForEach( .I in .MyVars ) { }