Type of a variable assignment must be a type (AJTERR10013)

When specifying the type of a variable assignment or a parameter definition you must reference a type. This error is thrown when your code references something else.

test1: number := 7;
test: test1 := 4;
//    ^^^^^ You are referencing a property here instead of a type.

test: test1 := 4;
example |argument: test|: void { }
//                 ^^^^ You are referencing a property here instead of a type.

Specify a valid type.