Topic on Project:Support desk

I have a problem, I've edited $wgUploadWizardConfig for to add new choices of licenses. But in the UploadWizard, when I am going to choose a custom license, the text shows something like this ⧼mwe-upwiz-license-wikimedia⧽ and the message MediaWiki that I'd created don't display.

For example, I've added this to $wgUploadWizardConfig:

        'licenses' => array(
		'wikimedia' => array(
			'msg' => 'mwe-upwiz-license-wikimedia',
			'templates' => array( 'Wikimedia' )
		),
		'other-wiki' => array(
			'msg' => 'mwe-upwiz-license-other-wiki',
			'templates' => array( 'Other wiki' )
		)
	),
        'licensing' => array(
        'ownWork' => array(
            'type' => 'or',
            'defaults' => 'cc-by-sa',
			'licenses' => array(
				'own',
				'public-domain',
				'cc-by-sa'
            )
		),
		'thirdParty' => array(
			'type' => 'or',
			'defaults' => 'none',
                        'template' => 'self', // this adds a link to Template:Licensing to the file info page
                        'licenseGroups' => array(
				array(
					'head' => 'mwe-upwiz-license-wiki-head',
					'licenses' => array(
						'wikimedia',
						'other-wiki'
					)
				)
                        )
		)
       )

In UploadWizard, the text is shown like this:

⧼mwe-upwiz-license-wiki⧽

• ⧼mwe-upwiz-license-wikimedia⧽
• ⧼mwe-upwiz-license-other-wiki⧽

What can I do?

mwe-upwiz-license-wiki, mwe-upwiz-license-wikimedia and mwe-upwiz-license-other-wiki are supposed to be message keys. This means you need to create the pages MediaWiki:mwe-upwiz-license-wiki, MediaWiki:mwe-upwiz-license-wikimedia and MediaWiki:mwe-upwiz-license-other-wiki with the text you want to display. This will allow you to provide translations to users using other languages.

Ciencia Al Poder, I've created that messages, but they don't display, the problem persist.

They keep appearing in the same way.