Dr. Nikolaus Klepp wrote:

> Hi!
> 
> I have 14.0.6~pre + openjdk-8-jre-headless + arduino 1.8.3. I remember
> that I once saw the error you described, but that's been quite a while.
> You might try "chown a+w /etc/tqt3/" as a last resort :-/
> 

but this has nothing to do with OPs problem and it is a bad idea to give
permission to everybody to write in /etc (you mean chmod o+w).