avrdude: ser_rev (): read error:

Good morning, I have a problem installing codes, does this error always appear?

"avrdude: ser_rev (): read error: The handle is invalid." :frowning:

Luis_Silva:
Good morning, I have a problem installing codes, does this error always appear?

"avrdude: ser_rev (): read error: The handle is invalid." :frowning:

Moderator moved your question to a more appropriate place

Post more detailed info: full log, which Arduino etc.

Try this: avrdude ser_drain: read error. handle is invalid - Installation & Troubleshooting - Arduino Forum