From a0cfee54e70c7c6eb93d03c0844bac29914b86df Mon Sep 17 00:00:00 2001
From: Yuval Goldberg <yuval@starkware.co>
Date: Sun, 7 Jul 2024 17:43:38 +0300
Subject: [PATCH] Fixed version reading when no version is supplied

---
 vm/src/vm/runners/cairo_pie.rs | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/vm/src/vm/runners/cairo_pie.rs b/vm/src/vm/runners/cairo_pie.rs
index 371b6de82f..83f215b02f 100644
--- a/vm/src/vm/runners/cairo_pie.rs
+++ b/vm/src/vm/runners/cairo_pie.rs
@@ -322,8 +322,13 @@ impl CairoPie {
     ) -> Result<CairoPie, std::io::Error> {
         use std::io::Read;
 
-        let reader = std::io::BufReader::new(zip_reader.by_name("version.json")?);
-        let version: CairoPieVersion = serde_json::from_reader(reader)?;
+        let version = match zip_reader.by_name("version.json") {
+            Ok(version_buffer) => {
+                let reader = std::io::BufReader::new(version_buffer);
+                serde_json::from_reader(reader)?
+            }
+            Err(_) => CairoPieVersion { cairo_pie: () },
+        };
 
         let reader = std::io::BufReader::new(zip_reader.by_name("metadata.json")?);
         let metadata: CairoPieMetadata = serde_json::from_reader(reader)?;