Pear Upgrade All funktioniert unter Ubuntu nicht

Pear Upgrade All funktioniert unter Ubuntu nicht

Wenn ich versuche, Pear zu aktualisieren, wird auf dem Terminal die folgende Meldung angezeigt

Will upgrade channel://pear.php.net/xml_util
Will upgrade channel://pear.php.net/pear
Will upgrade channel://pear.php.net/structures_graph
WARNING: channel "pear.php.net" has updated its protocols, use "pear channel-update pear.php.net" to update
WARNING: "pear/Console_Getopt" is deprecated in favor of "pear/Console_GetoptPlus"
pear/PEAR dependency package "pear/Structures_Graph" downloaded version 1.1.0 is not the recommended version 1.0.4, but may be compatible, use --force to install
pear/PEAR dependency package "pear/XML_Util" downloaded version 1.3.0 is not the recommended version 1.2.3, but may be compatible, use --force to install
pear/pear dependency package "pear/XML_Util" downloaded version 1.3.0 is not the recommended version 1.2.1, but may be compatible, use --force to install
pear/XML_Util cannot be installed, conflicts with installed packages
pear/pear dependency package "pear/Structures_Graph" downloaded version 1.1.0 is not the recommended version 1.0.4, but may be compatible, use --force to install
pear/Structures_Graph cannot be installed, conflicts with installed packages
No valid packages found
upgrade-all failed

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