MCUXpresso with imxrt1020 board hello world error.

[champ]

Hello, I am new to mcuxpresso. I am just getting started with mcuxpresso with imxrt1020 board. I wanted to start with "hello world" from demo and expecting to see "hello world" on tera term terminal when I hit debug. I build without any warnings or errors. Unfortunately, when I debug I got an error like in the picture. Could any one help. 

[champ]

Thank you! 

[ErichStyger · Accepted solution]

Hi @champ ,

my experience is that this shows up in most cases if your firewall/virus scanner is blocking the communication, or if there is a power supply problem (the i.MX parts are rather sensitive to this).

Other than that: I have a collection of tips here: https://mcuoneclipse.com/2014/11/03/debugging-failure-check-list-and-hints/

I hope this helps,

Erich