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I am working on O365 and created a custom Master Page. I have some out of the box web parts on the page, a reference to JQuery and a web part which is making a rest call to Images library and pulling images.

I get this error on console which is pointing to spribbon.js line 2:

Uncaught TypeError: this.$1_1.itemPermMasks.customFromJson is not a function

and all the icons on the Ribbon are greyed out, the edit button on the right-hand side also does not work.

I am able to edit the page adding ToolPaneView=2 to the Url. however, want to fix this before I finish the project.

Does anyone have any idea why this might be happening, please?

Thanks

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You should compare your customer master page to the out of the box Seattle. I have a feeling you might have accidentally deleted one of the JavaScript includes by accident which is throwing that error.

  • Ta! You are nearly right, it's a js referencing issue, but I was referencing sp.js twice.. – ova Aug 22 '16 at 8:47
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I have been referencing sp.js twice! That was the reason. It was not complaining about it being referenced twice (which it sometimes did, as I did same stupidity in the past) But resolved now. Thanks!

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    So close.. :-) Glad you figured it out! – Jared Matfess Aug 22 '16 at 23:45
  • When i can't find it on google, 99% my own stupidity :p, rule of thumb! – ova Aug 23 '16 at 0:31

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