fixes #12874

src/vs/platform/extensionManagement/node/extensionManagementService.ts

@@ -405,7 +405,7 @@ export class ExtensionManagementService implements IExtensionManagementService {
 	}
 
 	private getOutdatedExtensionIds(): TPromise<ILocalExtension[]> {
-		return this.scanUserExtensions()
+		return this.scanExtensions(this.extensionsPath, LocalExtensionType.User)
 			.then(extensions => values(groupBy(extensions, p => `${ p.manifest.publisher }.${ p.manifest.name }`)))
 			.then(versions => flatten(versions.map(p => p.sort((a, b) => semver.rcompare(a.manifest.version, b.manifest.version)).slice(1))));
 	}