hoffysworld

Solved completely with this tricky way:
first of all you must disable WP REST API plugin then change your wordpress theme to another template.

This reply was modified 18 hours, 20 minutes ago by Mahdi Zolfaghari.

@mahdizk’s solution did not work in my case

@jeherve

Yes I sent them the data.

I’m not sure how useful this is to your tracing process, but fiddling around I discovered that if a feature is already ON such as “Sharing” and you turn it off, it will not allow you to turn it back on throwing the same.

____________________ failed to activate. SyntaxError: Unexpected token < in JSON at position 0
Which Ever Feature

Oh and my data was sent as instructed above BTW.

Jeremy,

There was no change. This issue existed immediately following installation, and was the first plugin to be installed. Wish I had better news for ya….

Hi Jeremy,

This is a fresh install that has not gone live yet. The current plugins are:

Akismet
Jetpack by WordPress.com (Obviously)
Maintenance by fruitfulcode
UpdraftPlus – Backup/Restore

Steve “Hoffy” Hofmeister

I’m experiencing this issue as well.

“Monitor failed to activate. SyntaxError: Unexpected token < in JSON at position 0”

I tried @therealwesfoster’s solution with no success