Arm Mbed and Pelion Device Management support forum

Stuck at preparing

When I click “Compile”, the compiling dialog appears and stuck at the status show preparing.
What might I have done wrong? I’m new to the Mbed online ide. I have tried with and without the Microbit board connect to my computer.


All builds using the Online Compiler are failing as of yesterday evening. Apologies for this.

It is unlikely that this will be fixed until Monday.

Kind regards,

it is server problem. Download offline compiler ‘mbed studio’ .