Error using 1-click update to upgrade from 1.6.1.5 to 1.6.1.20

[babyewok]

OK so this is the first time I am using the 1-click upgrade module.  Within a matter of seconds I got this error:

INTERNAL] /home/******/public_html/modules/autoupgrade/classes/TaskRunner/Upgrade/Download.php line 41 - Error: Call to undefined method ConfigurationTest::test_curl() #0 /home/******/public_html/admin780uujpfz/autoupgrade/ajax-upgradetab.php(52): PrestaShop\Module\AutoUpgrade\TaskRunner\Upgrade\Download->run() #1 {main}

What caused it?  Does it mean the upgrade will not continue??  Upgrading form 1.6.1.5 to 1.6.1.20 and using 1-click update version 4.2.0

Edited September 21, 2018 by babyewok (see edit history)

[musicmaster]

1-click upgrade often gives problems. That is why you should always make a backup before using it (and don't rely on the backup of 1-click upgrade!).

Are you sure your PHP installation includes the Curl module? That could be the problem.

Anyway, you could download the file yourself and tell 1-click upgrade to upgrade from file.

[prestamax]

I had the same error. The reason was that allow_url_fopen was set to off. After changing it to

allow_url_fopen = on

in php.ini everything worked fine.