Can't upload the extension Status: Home › Forums › Thumbnail Gallery (WordPress Plugin) › Can't upload the extension This topic is: not a support question This topic contains 1 reply, has 2 voices, and was last updated by Sabina 2 years ago. Viewing 2 posts - 1 through 2 (of 2 total) 2 years ago ludoworld #57445 Hello, I’ve tried to upload Thumbnail gallery extension on wordpress but it didn’t work. I have the following message (in French) : L’archive n’a pas pu être installée. Aucune extension valide trouvée. L’installation de l’extension a échoué. Thanks for your help Ludovic 2 years ago Sabina Support Team #57622 Hello, I am sorry for the late answer. Have you unzipped the downloaded file first ? Inside you should find the dop…zip file. Upload the dop…zip file in your admin. Best Regards, Support Team Viewing 2 posts - 1 through 2 (of 2 total) The topic Can't upload the extension is closed to new replies.