Call to undefined method Proxy\\Proxy::filter() about php-proxy

[josephros]

I had this issue (amongst some others) and found requiring the dev master via composer rather than the standard version which composer installs fixed it for me by pulling in more up to date code. Here's my composer.json:

{
    "require": {
        "jenssegers/proxy": "dev-master",
        "zendframework/zend-diactoros": "^1.3"
    },
    "minimum-stability": "dev"
}

[zacharee]

I tried the suggestion, but I still have the error.

EDIT

Nevermind. I forgot to run composer update.