Strict Standards: Declaration of ' ' should be compatible with ' '

Question

I just installed woocommerce 2.0 (on Wordpress) on PHP 5.4, and I got this:

Strict Standards: Declaration of WC_Gateway_BACS::process

Answer 1

Here is a better answer - https://stackoverflow.com/a/9243127/2165415

for example,
parentClass::customMethod($thing = false) and
childClass::customMethod($thing)
so, when you call customMethod() for the class, it may trigger the error, because the child's method hasn't defined a default value for the first argument.