Compiler Error C2143 when using a struct

I’m compiling a simple .c in visual c++ with Compile as C Code (/TC) and i get this compiler error

error C2143: syntax error : missing ‘;’ before ‘type’

on a line that calls for a simple struct

 struct foo test;

same goes for using the typedef of the struct.

error C2275: ‘FOO’ : illegal use of this type as an expression


I forgot that in C you have to declare all your variables before any code.

Source: stackoverflow
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