Error while runnig the application. but works fine with the project.

While running the application I get the below error message. However the same is working fine in the project.

Error trying to save file: Error downloading "file:///C:\Engage-Update-Test-001\LatestFiles/wyserver.wys": Could not find file 'C:\Engage-Update-Test-001\LatestFiles\wyserver.wys'.

Kindly help on this.