FAQ - The upgrade fails with the error “PCLZIP_ERR_BAD_FORMAT (-10) : Unable to find End of Central Dir Record signature”

The upgrade fails with the error “PCLZIP_ERR_BAD_FORMAT (-10) : Unable to find End of Central Dir Record signature”

This error occurs when you are upgrading from webtrees <= 1.7.16.

The new release is downloaded from the github server. This server was updated, and now sends responses in lower case.

As a result, webtrees cannot understand the response.

You have two options.

1) Apply the patch This is a one-line edit (line 58 of file /app/File.php). You must replace L with [Ll].