Try to install theme name:"UB Trex" for Magento 2.3.1

so I have followed the instruction to download the zip, and extract it to localhost,copy app and pub folder to serve magento root by mobaxterm.

After cover the folder,got a problem :can't use CLI!

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1 Answer 1


This is early release bug, you will find it's fix in latest releases

In your function.php file, use this line before function

if (!function_exists('__')) {

Then function __() will look like this:

if (!function_exists('__')) {
     * @return \Magento\Framework\Phrase
    function __()
        $argc = func_get_args();

        $text = array_shift($argc);
        if (!empty($argc) && is_array($argc[0])) {
            $argc = $argc[0];

        return new \Magento\Framework\Phrase($text, $argc);

This should fix the issue

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