1. What happened
In 5.6.0a1 on new project when build Standalone in Development mode and Run it - it gives error:
The file 'D:/TempProjects/New Unity Project 1/1_Data/Resources/unity default resources' is corrupted! Remove it and launch unity again!

2. How we can reproduce it
1 Create new project
2 Open menu->File->Build Settings and select Standalone and select Development mode
3 Build and Run Standalone
Actual results: on starting Standalone error appears in development console:
"The file 'D:/TempProjects/New Unity Project 1/1_Data/Resources/unity default resources' is corrupted! Remove it and launch unity again!"
Expected results: should not be any errors

this is not happening in 5.5.0b10