whilst trying to upgrade the project to the latest UE version (4.24) I encountered this Error.
Running C:/Program Files/Epic Games/UE_4.24/Engine/Binaries/DotNET/UnrealBuildTool.exe -projectfiles -project="Y:/source/repos/EPQ-Game/game.uproject" -game -rocket -progress -log="Y:\source\repos\EPQ-Game/Saved/Logs/UnrealVersionSelector-2019.12.17-21.21.51.log"
Discovering modules, targets and source code for project...
ERROR: Unhandled exception: System.IO.FileLoadException: Could not load file or assembly 'file:///Y:\source\repos\EPQ-Game\Intermediate\Build\BuildRules\gameModuleRules.dll' or one of its dependencies. Operation is not supported. (Exception from HRESULT: 0x80131515)
File name: 'file:///Y:\source\repos\EPQ-Game\Intermediate\Build\BuildRules\gameModuleRules.dll' ---> System.NotSupportedException: An attempt was made to load an assembly from a network location which would have caused the assembly to be sandboxed in previous versions of the .NET Framework. This release of the .NET Framework does not enable CAS policy by default, so this load may be dangerous. If this load is not intended to sandbox the assembly, please enable the loadFromRemoteSources switch. See http://go.microsoft.com/fwlink/?LinkId=155569 for more information.
at System.Reflection.RuntimeAssembly._nLoad(AssemblyName fileName, String codeBase, Evidence assemblySecurity, RuntimeAssembly locationHint, StackCrawlMark& stackMark, IntPtr pPrivHostBinder, Boolean throwOnFileNotFound, Boolean forIntrospection, Boolean suppressSecurityChecks)
at System.Reflection.RuntimeAssembly.InternalLoadAssemblyName(AssemblyName assemblyRef, Evidence assemblySecurity, RuntimeAssembly reqAssembly, StackCrawlMark& stackMark, IntPtr pPrivHostBinder, Boolean throwOnFileNotFound, Boolean forIntrospection, Boolean suppressSecurityChecks)
at System.Reflection.Assembly.Load(AssemblyName assemblyRef, Evidence assemblySecurity)
at System.CodeDom.Compiler.CompilerResults.get_CompiledAssembly()
at UnrealBuildTool.DynamicCompilation.CompileAssembly(FileReference OutputAssemblyPath, HashSet`1 SourceFileNames, List`1 ReferencedAssembies, List`1 PreprocessorDefines, Boolean TreatWarningsAsErrors) in D:\Build\++UE4\Sync\Engine\Saved\CsTools\Engine\Source\Programs\UnrealBuildTool\System\DynamicCompilation.cs:line 372
at UnrealBuildTool.DynamicCompilation.CompileAndLoadAssembly(FileReference OutputAssemblyPath, HashSet`1 SourceFileNames, List`1 ReferencedAssembies, List`1 PreprocessorDefines, Boolean DoNotCompile, Boolean TreatWarningsAsErrors) in D:\Build\++UE4\Sync\Engine\Saved\CsTools\Engine\Source\Programs\UnrealBuildTool\System\DynamicCompilation.cs:line 442
at UnrealBuildTool.RulesAssembly..ctor(RulesScope Scope, DirectoryReference BaseDir, IReadOnlyList`1 Plugins, Dictionary`2 ModuleFileToContext, List`1 TargetFiles, FileReference AssemblyFileName, Boolean bContainsEngineModules, Nullable`1 DefaultBuildSettings, Boolean bReadOnly, Boolean bSkipCompile, RulesAssembly Parent) in D:\Build\++UE4\Sync\Engine\Saved\CsTools\Engine\Source\Programs\UnrealBuildTool\System\RulesAssembly.cs:line 115
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 592
at UnrealBuildTool.ProjectFileGenerator.AddProjectsForAllTargets(PlatformProjectGeneratorCollection PlatformProjectGenerators, List`1 AllGames, List`1 AllTargetFiles, ProjectFile& EngineProject, ProjectFile& EnterpriseProject, List`1& GameProjects, Dictionary`2& ProgramProjects) in D:\Build\++UE4\Sync\Engine\Saved\CsTools\Engine\Source\Programs\UnrealBuildTool\ProjectFiles\ProjectFileGenerator.cs:line 2219
at UnrealBuildTool.ProjectFileGenerator.GenerateProjectFiles(PlatformProjectGeneratorCollection PlatformProjectGenerators, String[] Arguments) in D:\Build\++UE4\Sync\Engine\Saved\CsTools\Engine\Source\Programs\UnrealBuildTool\ProjectFiles\ProjectFileGenerator.cs:line 720
at UnrealBuildTool.GenerateProjectFilesMode.Execute(CommandLineArguments Arguments) in D:\Build\++UE4\Sync\Engine\Saved\CsTools\Engine\Source\Programs\UnrealBuildTool\Modes\GenerateProjectFilesMode.cs:line 176
at UnrealBuildTool.UnrealBuildTool.Main(String[] ArgumentsArray) in D:\Build\++UE4\Sync\Engine\Saved\CsTools\Engine\Source\Programs\UnrealBuildTool\UnrealBuildTool.cs:line 397
After some googling I worked out that it didn’t like the fact That I am using a network drive to store the program on.
I think I need to set some switch to tell the computer that this is ok, But I am unsure on how to do this.
Thanks