Anam Andrew

this is a common problem with wordpress affecting several plugins…option suggested have been tried out including changing header section of the plugin file i.e. ensuring that the header comments do not have space after the php opening tag i.e

CHANGING:
<?php

/*
Author
…
…
…
*/
?>

TO:

<?php (difference from the above, the return key is not pressed)
/*
Author
…
…
…
*/
?>

check the plugin if it has header information that follows a criteria indicated here: https://codex.www.ads-software.com/Writing_a_Plugin#Standard_Plugin_Information

i retried installing online then activating, i was redirected to a link with “The plugin does not have a valid header.” notice

whenever i try to “upload the zip file via the upload at WordPress > Plugins > Add new” ofcourse after doing the online installation,then it gives the normal reply that “testimonials-widget file already exists”

yea it is very weird,i did unzip the file, i tried the normal add new,it would install successfully then ask me to activate,which i do then it directs to a link saying “invalid header”…this is shocking