projectile-invalidate-cache leads to Wrong type argument: hash-table-p, nil

[syl20bnr]

In a project folder (has a .projectile file), if I execute the command projectile-invalidate-cache the following error appears:

Wrong type argument: hash-table-p, nil

Stack is:

Debugger entered--Lisp error: (wrong-type-argument hash-table-p nil)
  remhash("/home/myhome/.emacs.d/" nil)
  projectile-invalidate-cache(nil)
  call-interactively(projectile-invalidate-cache nil nil)

[trishume]

I also commonly experience this problem, but not all the time.

Sometimes what fixes it is to go into a different projectile folder, run some projectile command, and then go back.

[syl20bnr]

Seems there is something wrong with projectile in spacemacs, there other weird behaviors, pretty annoying. I suspect the loading order between helm and projectile.

[syl20bnr]

Was triggered by wrong assumption about projectile autoloads.