UE 4.24 preview crashes on package

…And here is the log…

AndroidPlatformFactory.RegisterBuildPlatforms: UnrealBuildTool.AndroidPlatformSDK has no valid SDK
IOSPlatformFactory.RegisterBuildPlatforms: UnrealBuildTool.IOSPlatformSDK has no valid SDK
LinuxPlatformFactory.RegisterBuildPlatforms: UnrealBuildTool.LinuxPlatformSDK has no valid SDK
WindowsPlatformFactory.RegisterBuildPlatforms: UnrealBuildTool.WindowsPlatformSDK using manually installed SDK
BuildMode.Execute: Command line: “C:\Program Files\Epic Games\UE_4.24\Engine\Binaries\DotNET\UnrealBuildTool.exe” Indigo_20 Win64 Development -Project=“C:\Users\dinosi\Documents\Unreal Projects\Indigo_20\Indigo_20.uproject” “C:\Users\dinosi\Documents\Unreal Projects\Indigo_20\Indigo_20.uproject” -NoUBTMakefiles -remoteini=“C:\Users\dinosi\Documents\Unreal Projects\Indigo_20” -skipdeploy -Manifest=“C:\Users\dinosi\Documents\Unreal Projects\Indigo_20\Intermediate\Build\Manifest.xml” -NoHotReload -log=“C:\Users\dinosi\AppData\Roaming\Unreal Engine\AutomationTool\Logs\C+Program+Files+Epic+Games+UE_4.24\UBT-Indigo_20-Win64-Development.txt”
DynamicCompilation.RequiresCompilation: Compiling C:\Program Files\Epic Games\UE_4.24\Engine\Intermediate\Build\BuildRules\UE4Rules.dll: UnrealBuildTool.exe is newer
DynamicCompilation.CompileAssembly: While compiling C:\Program Files\Epic Games\UE_4.24\Engine\Intermediate\Build\BuildRules\UE4Rules.dll:
DynamicCompilation.CompileAssembly: error CS0042: Unexpected error creating debug information file ‘c:\Program Files\Epic Games\UE_4.24\Engine\Intermediate\Build\BuildRules\UE4Rules.PDB’ – 'c:\Program Files\Epic Games\UE_4.24\Engine\Intermediate\Build\BuildRules\UE4Rules.pdb: Access is denied.
UnrealBuildTool.Main: ERROR: Unable to compile source files.
UnrealBuildTool.Main: BuildException: Unable to compile source files.
UnrealBuildTool.Main: at UnrealBuildTool.DynamicCompilation.CompileAssembly(FileReference OutputAssemblyPath, HashSet1 SourceFileNames, List1 ReferencedAssembies, List1 PreprocessorDefines, Boolean TreatWarningsAsErrors) in D:\Build\++UE4\Sync\Engine\Saved\CsTools\Engine\Source\Programs\UnrealBuildTool\System\DynamicCompilation.cs:line 375 UnrealBuildTool.Main: at UnrealBuildTool.DynamicCompilation.CompileAndLoadAssembly(FileReference OutputAssemblyPath, HashSet1 SourceFileNames, List1 ReferencedAssembies, List1 PreprocessorDefines, Boolean DoNotCompile, Boolean TreatWarningsAsErrors) in D:\Build++UE4\Sync\Engine\Saved\CsTools\Engine\Source\Programs\UnrealBuildTool\System\DynamicCompilation.cs:line 442
UnrealBuildTool.Main: at UnrealBuildTool.RulesAssembly…ctor(RulesScope Scope, DirectoryReference BaseDir, IReadOnlyList1 Plugins, Dictionary2 ModuleFileToContext, List1 TargetFiles, FileReference AssemblyFileName, Boolean bContainsEngineModules, Nullable1 DefaultBuildSettings, Boolean bReadOnly, Boolean bSkipCompile, RulesAssembly Parent) in D:\Build++UE4\Sync\Engine\Saved\CsTools\Engine\Source\Programs\UnrealBuildTool\System\RulesAssembly.cs:line 115
UnrealBuildTool.Main: at UnrealBuildTool.RulesCompiler.CreateEngineOrEnterpriseRulesAssembly(RulesScope Scope, List1 RootDirectories, String AssemblyPrefix, IReadOnlyList1 Plugins, Boolean bReadOnly, Boolean bSkipCompile, RulesAssembly Parent) in D:\Build++UE4\Sync\Engine\Saved\CsTools\Engine\Source\Programs\UnrealBuildTool\System\RulesCompiler.cs:line 474
UnrealBuildTool.Main: at UnrealBuildTool.RulesCompiler.CreateEngineRulesAssembly(Boolean bUsePrecompiled, Boolean bSkipCompile) in D:\Build++UE4\Sync\Engine\Saved\CsTools\Engine\Source\Programs\UnrealBuildTool\System\RulesCompiler.cs:line 394
UnrealBuildTool.Main: at UnrealBuildTool.RulesCompiler.CreateEnterpriseRulesAssembly(Boolean bUsePrecompiled, Boolean bSkipCompile) in D:\Build++UE4\Sync\Engine\Saved\CsTools\Engine\Source\Programs\UnrealBuildTool\System\RulesCompiler.cs:line 407
UnrealBuildTool.Main: at UnrealBuildTool.RulesCompiler.CreateProjectRulesAssembly(FileReference ProjectFileName, Boolean bUsePrecompiled, Boolean bSkipCompile) in D:\Build++UE4\Sync\Engine\Saved\CsTools\Engine\Source\Programs\UnrealBuildTool\System\RulesCompiler.cs:line 526
UnrealBuildTool.Main: at UnrealBuildTool.RulesCompiler.CreateTargetRulesAssembly(FileReference ProjectFile, String TargetName, Boolean bSkipRulesCompile, Boolean bUsePrecompiled, FileReference ForeignPlugin) in D:\Build++UE4\Sync\Engine\Saved\CsTools\Engine\Source\Programs\UnrealBuildTool\System\RulesCompiler.cs:line 654
UnrealBuildTool.Main: at UnrealBuildTool.UEBuildTarget.Create(TargetDescriptor Descriptor, Boolean bSkipRulesCompile, Boolean bUsePrecompiled) in D:\Build++UE4\Sync\Engine\Saved\CsTools\Engine\Source\Programs\UnrealBuildTool\Configuration\UEBuildTarget.cs:line 604
UnrealBuildTool.Main: at UnrealBuildTool.BuildMode.CreateMakefile(BuildConfiguration BuildConfiguration, TargetDescriptor TargetDescriptor, ISourceFileWorkingSet WorkingSet) in D:\Build++UE4\Sync\Engine\Saved\CsTools\Engine\Source\Programs\UnrealBuildTool\Modes\BuildMode.cs:line 433
UnrealBuildTool.Main: at UnrealBuildTool.BuildMode.Build(List`1 TargetDescriptors, BuildConfiguration BuildConfiguration, ISourceFileWorkingSet WorkingSet, BuildOptions Options, FileReference WriteOutdatedActionsFile) in D:\Build++UE4\Sync\Engine\Saved\CsTools\Engine\Source\Programs\UnrealBuildTool\Modes\BuildMode.cs:line 220
UnrealBuildTool.Main: at UnrealBuildTool.BuildMode.Execute(CommandLineArguments Arguments) in D:\Build++UE4\Sync\Engine\Saved\CsTools\Engine\Source\Programs\UnrealBuildTool\Modes\BuildMode.cs:line 192
UnrealBuildTool.Main: at UnrealBuildTool.UnrealBuildTool.Main(String[] ArgumentsArray) in D:\Build++UE4\Sync\Engine\Saved\CsTools\Engine\Source\Programs\UnrealBuildTool\UnrealBuildTool.cs:line 517
Timeline.Print: Timeline:
Timeline.Print:
Timeline.Print: [ 0.000]
Timeline.Print: 0.000
Timeline.Print: 0.037 FileMetadataPrefetch.QueueEngineDirectory()
Timeline.Print: 0.040 XmlConfig.ReadConfigFiles()
Timeline.Print: 0.429 SingleInstanceMutex.Acquire()
Timeline.Print: 0.429 UEBuildPlatform.RegisterPlatforms()
Timeline.Print: 0.430 0.001 Initializing InstalledPlatformInfo
Timeline.Print: 0.526 0.097 Querying types
Timeline.Print: 0.529 0.099 MacPlatformFactory
Timeline.Print: 0.533 0.104 TVOSPlatformFactory
Timeline.Print: 0.534 0.104 AndroidPlatformFactory
Timeline.Print: 0.549 0.119 HoloLensPlatformFactory
Timeline.Print: 0.549 0.120 IOSPlatformFactory
Timeline.Print: 0.583 0.154 LinuxPlatformFactory
Timeline.Print: 0.587 0.157 LuminPlatformFactory
Timeline.Print: 0.587 0.158 WindowsPlatformFactory
Timeline.Print: 0.598 TargetDescriptor.ParseCommandLine()
Timeline.Print: 0.627 UEBuildTarget.Create()
Timeline.Print: 0.631 0.003 RulesCompiler.CreateTargetRulesAssembly()
Timeline.Print: 0.631 0.003 0.000
Timeline.Print: 0.792 0.165 0.161 Finding engine modules
Timeline.Print: 0.897 0.270 0.266 Finding plugin modules
Timeline.Print: 0.916 0.289 0.285 Compiling rules assembly (UE4Rules.dll)
Timeline.Print: 2.359
Timeline.Print: 2.395 FileMetadataPrefetch.Stop()
Timeline.Print: [ 2.401]

Any ideas why it crashes??
Thank you in advance