Visual Studio unknown build error. The fully qualified name must be less than 260 characters

Question

I\'m having trouble while building my WPF solution. Everytime I try to build it, I get this error message:

Unknown build error, \'The specified path,

Answer 1

There is registry approach which can be used at least for Windows 10:
Value of the parameter HKLM\SYSTEM\CurrentControlSet\Control\FileSystem LongPathsEnabled (Type: REG_DWORD) should be set to 1. You don't even need top restart anything (IDE or PC).