Marlin 2.0.X Bugfix Platformio:Build Error? (1 reply)

Hi, i recently received SKR 1.3 board. I tried upload latest marlin version. When i try upload arduino always times out. Here it is error code:
avrdude: stk500v2_ReceiveMessage(): timeout
avrdude: stk500v2_ReceiveMessage(): timeout
avrdude: stk500v2_ReceiveMessage(): timeout
avrdude: stk500v2_ReceiveMessage(): timeout
avrdude: stk500v2_ReceiveMessage(): timeout
avrdude: stk500v2_ReceiveMessage(): timeout
avrdude: stk500v2_getsync(): timeout communicating with programmer

avrdude done. Thank you.

An error occurred while uploading the sketch
Why is this happening?

So i decided to try Atom software. I add latest version marlin and i only changed “default_envs = LPC1768” in platformio.ini. After then i press the Platformio:Build button and it gives this errors: [yadi.sk]

What can i do?