From e9bead51567254a8eae41f9d19307dd6832a7615 Mon Sep 17 00:00:00 2001
From: hasundue <hasundue@gmail.com>
Date: Tue, 12 Mar 2024 13:34:53 +0900
Subject: [PATCH] chore: better error message for unresolved import

---
 core/update.ts | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/core/update.ts b/core/update.ts
index 55bdc162..8777b750 100644
--- a/core/update.ts
+++ b/core/update.ts
@@ -280,7 +280,12 @@ async function collectFromDependency(
 ): Promise<CollectResult> {
   const resolved = dependencyJson.code?.specifier ??
     dependencyJson.type?.specifier;
-  assertExists(resolved);
+  if (!resolved) {
+    throw new Error(
+      `Could not resolve the dependency: ${dependencyJson.specifier}`,
+      { cause: dependencyJson },
+    );
+  }
   const lock = options.lockFile
     ? await createLockPart(resolved, options.lockFile)
     : undefined;