Debugging mesh light switch example failue in SES

Question

Hi all 
 I am studying mesh example such as light switch server, I use Segger Embedded Studio to comple the project of light switch, it is OK, but when I want to do online debugging the code, I use SES function Debug->Go or directly to click icon with function name Start Debugging, then an error message is shown as below

What happning? can anyone give a solution? Thanks

awneil · Answer

You've cut off the end of the message. 
 An 'Additional Load File', as the name suggests, is a file that SES loads i n addition to your application when it programs the Target. 
 Usually, for a Nordic project, that would be the SoftDevice. 
 The error message tells you the file it's looking for - so verify that it actually exists, and the path is correct... 
 See also: 
 https://forum.segger.com/index.php/Thread/4711-SOLVED-Additional-Load-File-does-not-exist-error/