Local server with USB connection problem "Wasn't online yet"

Hello

I’m new here, and I was hoping that I can get some help regarding the local server.

I’m using Arduino Mega2560, and I was using the Blynk cloud server before, which was working fine for me, but then recently I decided to go for the local server.

It seems that I got everything right, but in the local server setting up guide in GitHub there is one line of code that should be executed before getting everything to work fine, and I didn’t understand where to execute that code or how.

The line of code I’m talking about is in the screenshot below.

Hope to hear from you soon, and thanks in advance.

As already mentioned in another post…

http://help.blynk.cc/how-to-connect-different-hardware-with-blynk/arduino/usb-serial

PS blynk-ser.sh is for Mac/Linux PCs blynk-ser.bat for Windows