Cannot control GnuPG from shell (IPC parameter error)

[NIIBE Yutaka]

Seby <seby2kt14 at gmail.com> wrote:
> I am running 2.3.0-beta82. I tried to search for this error and I
> could only find clues that lead to gpg-agent, but # gpg-agent --help
> doesn't allow me to disable it. What is the good approach here?

Please update your installation.

IIUC, you are talking about (old version of) gpg4win, which is based on
GnuPG 2.0.x, and you are trying to use new feature(s) of GnuPG 2.2, like
ECC.
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