diff --git a/android/package_ctx.go b/android/package_ctx.go
index ee826c8..d9bb109 100644
--- a/android/package_ctx.go
+++ b/android/package_ctx.go
@@ -18,6 +18,7 @@
 	"fmt"
 
 	"github.com/google/blueprint"
+	"github.com/google/blueprint/pathtools"
 )
 
 // AndroidPackageContext is a wrapper for blueprint.PackageContext that adds
@@ -55,6 +56,10 @@
 	e.pctx.AddNinjaFileDeps(deps...)
 }
 
+func (e *configErrorWrapper) Fs() pathtools.FileSystem {
+	return nil
+}
+
 // SourcePathVariable returns a Variable whose value is the source directory
 // appended with the supplied path. It may only be called during a Go package's
 // initialization - either from the init() function or as part of a