Fix NullReferenceException in ResolverComparer (#5717)

jv42 · web-flow · commit c71593c6081a · 2024-04-02T10:39:04.000-07:00
diff --git a/src/NuGet.Core/NuGet.Resolver/ResolverComparer.cs b/src/NuGet.Core/NuGet.Resolver/ResolverComparer.cs
@@ -31,7 +31,7 @@ public ResolverComparer(DependencyBehavior dependencyBehavior,
 
             _installedVersions = new Dictionary<string, NuGetVersion>();
 
-            if (_installedVersions != null)
+            if (_preferredVersions != null)
             {
                 foreach (var package in _preferredVersions)
                 {

Original file line number	Diff line number	Diff line change
`@@ -31,7 +31,7 @@ public ResolverComparer(DependencyBehavior dependencyBehavior,`
`31`	`31`
`32`	`32`	`_installedVersions = new Dictionary<string, NuGetVersion>();`
`33`	`33`
`34`		`- if (_installedVersions != null)`
	`34`	`+ if (_preferredVersions != null)`
`35`	`35`	`{`
`36`	`36`	`foreach (var package in _preferredVersions)`
`37`	`37`	`{`