fix: add suggestion to 'cannot use... autogenerated' msg (mozilla#3309)

mcomella · Nov 22, 2024 · 2a283d9 · 2a283d9
1 parent cde10a8
commit 2a283d9
Showing 1 changed file with 12 additions and 2 deletions.
diff --git a/src/cmd/sign.js b/src/cmd/sign.js
@@ -66,8 +66,18 @@ export default function sign(
     if (idFromSourceDir && !id) {
       throw new UsageError(
         'Cannot use previously auto-generated extension ID ' +
-          `${idFromSourceDir} - This extension ID must be specified in the manifest.json file.`,
-      );
+          `${idFromSourceDir} - This extension ID must be specified in the manifest.json file. For example:
+
+    // manifest.json
+    {
+        "browser_specific_settings": {
+            "gecko": {
+                "id": "${idFromSourceDir}"
+            }
+        },
+
+    ...
+    }`);
     }
 
     if (!id) {