I'm trying to use Channel Images in a front-end Channel Form situation. I have the channel images appearing, but the Upload Images button does not respond to clicking, and when I use the developer tools in Chrome, it spits out

Uncaught TypeError: $.base64Decode is not a function

and then a series of this information:

ChannelImages.ActivateUploadHandlers @ channel_images_pbf.js?v=5.4.19:112

(anonymous function) @ channel_images_pbf.js?v=5.4.19:68 n.extend.each @ jquery-1.11.0.min.js:2 n.fn.n.each @ jquery-1.11.0.min.js:2 ChannelImages.InitFields @ channel_images_pbf.js?v=5.4.19:64 ChannelImages.Init @ channel_images_pbf.js?v=5.4.19:18 (anonymous function) @ channel_images_pbf.js?v=5.4.19:1822 H.Callbacks.d @ ?ACT=10&ui=core,widget,mouse,position,draggable,resizable,sortable,button,dialog,tabs,datepicker&pl…:16 H.Callbacks.p.fireWith @ ?ACT=10&ui=core,widget,mouse,position,draggable,resizable,sortable,button,dialog,tabs,datepicker&pl…:16 s.extend.ready @ ?ACT=10&ui=core,widget,mouse,position,draggable,resizable,sortable,button,dialog,tabs,datepicker&pl…:16 F.addEventListener.a @ ?ACT=10&ui=core,widget,mouse,position

If I can't use channel images to upload via Channel Form, does anyone else have a suggestion for a clean, multiple file upload option for Channel Form?

  • Hi did you ever find a solution for this , I have exactly the same issue
    – bhackett
    Jan 29, 2016 at 16:46

1 Answer 1


Late to answer this, but when I expirienced same problem it appeared to originate from fact that jQuery was also included second time in the footer. I removed jQuery inclusion from the footer and all started working.

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