I cannot convert project to newer version

This is the error I get when trying to convert my older project to the new version. The project was made with one of the 4.18 versions I think.

The problem is I am not one of the devs that worked on it so I do not know how to handle this.

Project files could not be generated.
Log output:

Running C:/Program Files/Epic
Games/UE_4.19/Engine/Binaries/DotNET/UnrealBuildTool.exe
-projectfiles -project=“D:/2018-Projects/Hobby_SevenStones/svn/7bones7stones-project 4.19/BonesAndStones-4ALL.uproject” -game -rocket -progress Discovering modules, targets and source code for
project… While compiling
D:\2018-Projects\Hobby_SevenStones\svn\7bones7stones-project 4.19\Intermediate\Build\BuildRules\BonesAndStones-4ALLModuleRules.dll:
WARNING:
d:\2018-Projects\Hobby_SevenStones\svn\7bones7stones-project 4.19\Source\BonesAndStones\BonesAndStones.Build.cs(26,13)
: warning CS0618:
‘UnrealBuildTool.ModuleRules.RuntimeDependencyList.Add(UnrealBuildTool.ModuleRules.RuntimeDependency)’
is obsolete: ‘Constructing a
RuntimeDependency object is
deprecated. Call
RuntimeDependencies.Add() with the
path to the file to stage.’ ERROR:
d:\2018-Projects\Hobby_SevenStones\svn\7bones7stones-project 4.19\Plugins\GameLiftServerSDK\Source\GameLiftServerSDK\GameLiftServerSDK.Build.cs(19,12)
: error CS1729:
‘UnrealBuildTool.ModuleRules’ does not
contain a constructor that takes 0
arguments ERROR:
d:\2018-Projects\Hobby_SevenStones\svn\7bones7stones-project 4.19\Plugins\GameLiftServerSDK\Source\GameLiftServerSDK\GameLiftServerSDK.Build.cs(65,24)
: error CS1061:
‘UnrealBuildTool.TargetInfo’ does not
contain a definition for ‘Type’ and no
extension method ‘Type’ accepting a
first argument of type
‘UnrealBuildTool.TargetInfo’ could be
found (are you missing a using
directive or an assembly reference?)
WARNING:
d:\2018-Projects\Hobby_SevenStones\svn\7bones7stones-project 4.19\Plugins\GameLiftServerSDK\Source\GameLiftServerSDK\GameLiftServerSDK.Build.cs(76,21)
: warning CS0618:
‘UnrealBuildTool.ModuleRules.RuntimeDependencyList.Add(UnrealBuildTool.ModuleRules.RuntimeDependency)’
is obsolete: ‘Constructing a
RuntimeDependency object is
deprecated. Call
RuntimeDependencies.Add() with the
path to the file to stage.’ WARNING:
d:\2018-Projects\Hobby_SevenStones\svn\7bones7stones-project 4.19\Plugins\GameLiftServerSDK\Source\GameLiftServerSDK\GameLiftServerSDK.Build.cs(84,21)
: warning CS0618:
‘UnrealBuildTool.ModuleRules.RuntimeDependencyList.Add(UnrealBuildTool.ModuleRules.RuntimeDependency)’
is obsolete: ‘Constructing a
RuntimeDependency object is
deprecated. Call
RuntimeDependencies.Add() with the
path to the file to stage.’ WARNING:
d:\2018-Projects\Hobby_SevenStones\svn\7bones7stones-project 4.19\Plugins\GameLiftServerSDK\Source\GameLiftServerSDK\GameLiftServerSDK.Build.cs(67,17)
: warning CS0618:
‘UnrealBuildTool.ModuleRules.Definitions’
is obsolete: ‘The ‘Definitions’
property has been deprecated. Please
use ‘PublicDefinitions’ instead.’
WARNING:
d:\2018-Projects\Hobby_SevenStones\svn\7bones7stones-project 4.19\Plugins\GameLiftServerSDK\Source\GameLiftServerSDK\GameLiftServerSDK.Build.cs(89,17)
: warning CS0618:
‘UnrealBuildTool.ModuleRules.Definitions’
is obsolete: ‘The ‘Definitions’
property has been deprecated. Please
use ‘PublicDefinitions’ instead.’
WARNING:
d:\2018-Projects\Hobby_SevenStones\svn\7bones7stones-project 4.19\Plugins\GameLiftServerSDK\Source\GameLiftServerSDK\GameLiftServerSDK.Build.cs(94,13)
: warning CS0618:
‘UnrealBuildTool.ModuleRules.Definitions’
is obsolete: ‘The ‘Definitions’
property has been deprecated. Please
use ‘PublicDefinitions’ instead.’
ERROR:
d:\2018-Projects\Hobby_SevenStones\svn\7bones7stones-project 4.19\Plugins\GameSparks\Source\GameSparks\GameSparks.Build.cs(8,12)
: error CS1729:
‘UnrealBuildTool.ModuleRules’ does not
contain a constructor that takes 0
arguments WARNING:
d:\2018-Projects\Hobby_SevenStones\svn\7bones7stones-project 4.19\Plugins\GameSparks\Source\GameSparks\GameSparks.Build.cs(11,9)
: warning CS0618:
‘UnrealBuildTool.ModuleRules.Definitions’
is obsolete: ‘The ‘Definitions’
property has been deprecated. Please
use ‘PublicDefinitions’ instead.’
WARNING:
d:\2018-Projects\Hobby_SevenStones\svn\7bones7stones-project 4.19\Plugins\GameSparks\Source\GameSparks\GameSparks.Build.cs(12,9)
: warning CS0618:
‘UnrealBuildTool.ModuleRules.Definitions’
is obsolete: ‘The ‘Definitions’
property has been deprecated. Please
use ‘PublicDefinitions’ instead.’
WARNING:
d:\2018-Projects\Hobby_SevenStones\svn\7bones7stones-project 4.19\Plugins\GameSparks\Source\GameSparks\GameSparks.Build.cs(58,17)
: warning CS0618:
‘UnrealBuildTool.ModuleRules.Definitions’
is obsolete: ‘The ‘Definitions’
property has been deprecated. Please
use ‘PublicDefinitions’ instead.’
ERROR:
d:\2018-Projects\Hobby_SevenStones\svn\7bones7stones-project 4.19\Plugins\GameSparks\Source\OnlineSubsystemGameSparks\OnlineSubsystemGameSparks.Build.cs(8,12)
: error CS1729:
‘UnrealBuildTool.ModuleRules’ does not
contain a constructor that takes 0
arguments WARNING:
d:\2018-Projects\Hobby_SevenStones\svn\7bones7stones-project 4.19\Plugins\GameSparks\Source\OnlineSubsystemGameSparks\OnlineSubsystemGameSparks.Build.cs(11,9)
: warning CS0618:
‘UnrealBuildTool.ModuleRules.Definitions’
is obsolete: ‘The ‘Definitions’
property has been deprecated. Please
use ‘PublicDefinitions’ instead.’
WARNING:
d:\2018-Projects\Hobby_SevenStones\svn\7bones7stones-project 4.19\Plugins\GameSparks\Source\OnlineSubsystemGameSparks\OnlineSubsystemGameSparks.Build.cs(12,9)
: warning CS0618:
‘UnrealBuildTool.ModuleRules.Definitions’
is obsolete: ‘The ‘Definitions’
property has been deprecated. Please
use ‘PublicDefinitions’ instead.’
ERROR: UnrealBuildTool Exception:
Unable to compile source files.