Installing Arduino IDE on UBUNTU 18.04?

Question

linux

Hello everyone
I am having a problem with the Arduino IDE on my Linux Ubuntu. Previously, he sat on Windows, worked for himself, did not touch anyone. But then I switched to Linux and decided to install the Arduino IDE. There were a lot of problems here. I tried to install both from the official site and via apt-get. Nowhere to fill in the sketch does not come out. In the one installed via apt-get, the Serial ports option does not work at all and I cannot select a port there. In the one that the site gave an error avrdude: stk500_recv(). Then the option to select ports also fell off.
Here is a list of all the functions I have done:
1) Adding a user to the dialout group
2) Adding a user to the tty group
3) Installing java , avrgcc
4) Send the signal directly through a command like echo 'siom' /dev/ttyUSB0. Then the RX LED lights up. This means that the arduino is working (which there was no doubt about) and the PC sees it
Tell me who knows how to solve such a problem

Answer 1

Looks like udev rules need to be written.

Answer 2

try under root.