When i Component Manager sync show an error
Command "show" failed: [Composer\Downloader\TransportException] The "https://repo.magento.com/packages.json" file could not be downloaded: allow_url_fopen must be enabled in php.ini (https:// wrapper is disabled in the server configuration by allow_url_fopen=0 failed to open stream: no suitable wrapper could be found) show [--all] [-i|--installed] [-p|--platform] [-a|--available] [-s|--self] [-N|--name-only] [-P|--path] [-t|--tree] [package] [version]
please help for magento 2.0.13 community-edition 2.0.13
