'Error in process sentinel: Wrong type argument: ...'

[arteen1000]

Here is a warning that is emitted to the messages buffer:

error in process sentinel: Wrong type argument: sequencep, warning: [2 times]

I just got started with the basic installation steps, using your default configuration and MELPA. This occurs via the keybinding M-0.

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[Alexander-Miller]

Run toggle-debug-on-error and then show me the stack trace that Emacs will give you.

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