Getting issue when starting session from appium server to attached MI device

I have created desired capabilities on appium server and attached my MI Android Mobile device to system but when i click on “start session”,its showing error below:-
“An unknown server-side error occurred while processing the command. Original error: ENOENT: no such file or directory, scandir ‘C:\Users\DELL\AppData\Local\Android\sdk;\build-tools’”.

I have confirmed that sdk,build tools & other path are set.

Please help me to fix this issue.