i had this error when i try to migrate a project to unreal 5.5
C:\Program Files\Epic Games\UE_5.5\Engine\Plugins\ScriptPlugin\Source\ScriptGeneratorUbtPlugin\ScriptCodeGeneratorBase.cs(50,30,50,37): error CS1061: 'UhtModule' does not contain a definition for 'Package' and no accessible extension method 'Package' accepting a first argument of type 'UhtModule' could be found (are you missing a using directive or an assembly reference?)
9>C:\Program Files\Epic Games\UE_5.5\Engine\Plugins\ScriptPlugin\Source\ScriptGeneratorUbtPlugin\ScriptCodeGeneratorBase.cs(50,46,50,53): error CS1061: 'UhtModule' does not contain a definition for 'Package' and no accessible extension method 'Package' accepting a first argument of type 'UhtModule' could be found (are you missing a using directive or an assembly reference?)
9>Done building project "ScriptGeneratorUbtPlugin.ubtplugin.csproj" -- FAILED.
I replace this file in line 50 :
C:\Program Files\Epic Games\UE_5.5\Engine\Plugins\ScriptPlugin\Source\ScriptGeneratorUbtPlugin
QueueClassExports(module.Package, module.Package, classes, tasks);
by this
QueueClassExports(module.ScriptPackage, module.ScriptPackage, classes, tasks);
I am a newbie in c++ so I am not sure if it right but it worked for me
hope it’s help someone