Installation schlägt fehl: ​Could not untar file '...', file is empty.

Could not untar file 'lib/system/api/cdn/monolog/monolog/tests/Monolog/Handler/Fixtures/.gitkeep', file is empty.

Error Type:

wcf\system\exception\SystemException

Error Message:

error(s) during the installation of the files.

File:

*/lib/system/setup/Installer.class.php (167)

Stack Trace:

#0 */lib/system/setup/Installer.class.php (54):
wcf\system\setup\Installer->install()
#1 */lib/system/package/PackageInstallationDispatcher.class.php (690):
wcf\system\setup\Installer->__construct('*/.', '*/tmp/files_b283f03e24865d68dbabf2fb07ac02bf35d00a97.tar', wcf\system\package\FilesFileHandler)