michele@michele-K53SC:~$ cd UnrealEngine
michele@michele-K53SC:~/UnrealEngine$ make SlateViewer
bash "/home/michele/UnrealEngine"/Engine/Build/BatchFiles/Linux/Build.sh SlateViewer Linux Development  
Building SlateViewer...
Using clang version '3.5.0' (string), 3 (major), 5 (minor), 0 (patch)
Creating makefile for SlateViewer (no existing makefile)
Failed to read dependency cache: Access to the path "/home/michele/UnrealEngine/Engine/Intermediate/Build/Linux/x86_64-unknown-linux-gnu/SlateViewer/DependencyCache.bin.buildmutex" is denied.
Performing full C++ include scan (no include cache file)
Building UnrealHeaderTool...
Using clang version '3.5.0' (string), 3 (major), 5 (minor), 0 (patch)
Performing full C++ include scan (no include cache file)
Failed to read dependency cache: Access to the path "/home/michele/UnrealEngine/Engine/Intermediate/Build/Linux/x86_64-unknown-linux-gnu/UnrealHeaderTool/DependencyCache.bin.buildmutex" is denied.
Target is up to date.
ERROR: System.UnauthorizedAccessException: Access to the path "/home/michele/UnrealEngine/Engine/Build/Receipts/UnrealHeaderTool-Linux-Developmentx86_64-unknown-linux-gnu.target.xml" is denied.
  at System.IO.FileStream..ctor (System.String path, FileMode mode, FileAccess access, FileShare share, Int32 bufferSize, Boolean anonymous, FileOptions options) [0x00000] in <filename unknown>:0 
  at System.IO.FileStream..ctor (System.String path, FileMode mode, FileAccess access, FileShare share) [0x00000] in <filename unknown>:0 
  at (wrapper remoting-invoke-with-check) System.IO.FileStream:.ctor (string,System.IO.FileMode,System.IO.FileAccess,System.IO.FileShare)
  at System.IO.StreamWriter..ctor (System.String path, Boolean append, System.Text.Encoding encoding, Int32 bufferSize) [0x00000] in <filename unknown>:0 
  at System.IO.StreamWriter..ctor (System.String path) [0x00000] in <filename unknown>:0 
  at (wrapper remoting-invoke-with-check) System.IO.StreamWriter:.ctor (string)
  at UnrealBuildTool.BuildReceipt.Write (System.String FileName) [0x00000] in <filename unknown>:0 
  at UnrealBuildTool.UEBuildTarget.WriteReceipt () [0x00000] in <filename unknown>:0 
  at UnrealBuildTool.UnrealBuildTool.RunUBT (System.String[] Arguments) [0x00000] in <filename unknown>:0 
Failed to write dependency cache: Access to the path "/home/michele/UnrealEngine/Engine/Intermediate/Build/Linux/x86_64-unknown-linux-gnu/UnrealHeaderTool/DependencyCache.bin" is denied.
Failed to write FlatCPPIncludeDependencyCache: Access to the path "/home/michele/UnrealEngine/Engine/Intermediate/Build/Linux/x86_64-unknown-linux-gnu/UnrealHeaderTool/FlatCPPIncludes.bin" is denied.
UnrealHeaderTool failed for target 'SlateViewer' (platform: Linux, module info: /home/michele/UnrealEngine/Engine/Intermediate/Build/Linux/x86_64-unknown-linux-gnu/SlateViewer/Development/UnrealHeaderTool.manifest).
Failed to write dependency cache: Access to the path "/home/michele/UnrealEngine/Engine/Intermediate/Build/Linux/x86_64-unknown-linux-gnu/SlateViewer/DependencyCache.bin" is denied.
make: *** [SlateViewer] Errore 5
michele@michele-K53SC:~/UnrealEngine$