I am trying to update WPML plugins and I get this error:
An error occurred while updating WPML Translation Management: The package could not be installed. PCLZIP_ERR_BAD_FORMAT (-10) : Unable to find End of Central Dir Record signature
It happened due to a glitch in WPML v4.2.1 -- its fixed now in latest WPML release. Our system team has advised to follow these steps to successfully update plugins: Go to Dashboard Menu >> Updates >> And press the "Check Again" button >> After that you should be able to update the remaining plugins.