From e09a5b5fb2bb895259e7788e8fdaf72e6af21992 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Leosvel=20P=C3=A9rez=20Espinosa?=
 <leosvel.perez.espinosa@gmail.com>
Date: Wed, 12 Feb 2025 18:21:23 +0100
Subject: [PATCH] fix(core): handle nullable `lock` when creating project graph
 (#30000)

## Current Behavior

The project graph construction can throw an error when the lock is not
created:
https://github.com/nrwl/nx/issues/29821#issuecomment-2653007563.

## Expected Behavior

The project graph construction should correctly handle the nullable
lock.

## Related Issue(s)

Fixes #
---
 packages/nx/src/project-graph/project-graph.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/packages/nx/src/project-graph/project-graph.ts b/packages/nx/src/project-graph/project-graph.ts
index 5f5e59584cc9c..ba19e31fce547 100644
--- a/packages/nx/src/project-graph/project-graph.ts
+++ b/packages/nx/src/project-graph/project-graph.ts
@@ -363,7 +363,7 @@ export async function createProjectGraphAndSourceMapsAsync(
     } catch (e) {
       handleProjectGraphError(opts, e);
     } finally {
-      lock.unlock();
+      lock?.unlock();
     }
   } else {
     try {