Add more debug info to resolveJsonRefs (#560)

* Add more debug info to resolveJsonRefs

* Improve error message

Author: Cellaryllis

packages/docusaurus-plugin-openapi-docs/src/openapi/utils/loadAndResolveSpec.ts

@@ -101,7 +101,16 @@ async function resolveJsonRefs(specUrlOrObject: object | string) {
     });
     return schema as OpenApiObject;
   } catch (err: any) {
-    console.error(chalk.yellow(err.errors[0]?.message ?? err));
+    let errorMsg = "";
+
+    if (err.errors[0] !== undefined) {
+      const error = err.errors[0];
+      errorMsg = `Error: [${error.message}] with footprint [${error.footprint}]`;
+    } else {
+      errorMsg = err;
+    }
+
+    console.error(chalk.yellow(errorMsg));
     return;
   }
 }