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It turns out that one of the blogspot blogs on my list, which I'd followed for a while previously, had started to require password authentication (and I didn't know the password). Some result of caching was that it was breaking the whole system. Here was the solution: Remove the offending blog from newsticker-url-list (which I defined via customize, in my ...


My guess is that iterm is not on the path. Can you execute (executable-find "iterm")? You may edit spacemacs environment via SPC f e e.


I received the exact same error on a fresh Ubuntu install using Emacs 26.3. In my case it was related to the ob-ipython packet, which requires ipython and jupyter to be installed, which I hadn't come around to doing yet. After a sudo apt install ipython jupyter the error was gone.

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