From e76ca8febf72a0c6cbdd16003171e176c94048b1 Mon Sep 17 00:00:00 2001
From: SoftFever <softfeverever@gmail.com>
Date: Sun, 17 Mar 2024 11:22:52 +0800
Subject: [PATCH] Minor tweak: avoid exceptions

---
 resources/printers/N1.json         |  1 +
 resources/printers/N2S.json        |  1 +
 src/slic3r/Utils/PresetUpdater.cpp | 23 ++++++++++++++++-------
 3 files changed, 18 insertions(+), 7 deletions(-)

diff --git a/resources/printers/N1.json b/resources/printers/N1.json
index 8bcd035a5e..85da862315 100644
--- a/resources/printers/N1.json
+++ b/resources/printers/N1.json
@@ -28,6 +28,7 @@
             "support_print_all":false,
             "support_print_without_sd":false,
             "support_flow_calibration":true,
+            "support_build_plate_marker_detect":false,
             "support_lidar_calibration":false,
             "support_ai_monitoring":false,
             "support_first_layer_inspect":false,
diff --git a/resources/printers/N2S.json b/resources/printers/N2S.json
index 2857bb17eb..e287cd1fab 100644
--- a/resources/printers/N2S.json
+++ b/resources/printers/N2S.json
@@ -28,6 +28,7 @@
             "support_print_all":false,
             "support_print_without_sd":false,
             "support_flow_calibration":true,
+            "support_build_plate_marker_detect":false,
             "support_lidar_calibration":false,
             "support_ai_monitoring":false,
             "support_first_layer_inspect":false,
diff --git a/src/slic3r/Utils/PresetUpdater.cpp b/src/slic3r/Utils/PresetUpdater.cpp
index 483a10fc7b..bb61978471 100644
--- a/src/slic3r/Utils/PresetUpdater.cpp
+++ b/src/slic3r/Utils/PresetUpdater.cpp
@@ -942,12 +942,18 @@ void PresetUpdater::priv::sync_printer_config(std::string http_url)
     auto                    cache_folder = data_dir_path / "ota" / "printers";
 
     try {
-        Slic3r::load_string_file(config_folder / "version.txt", curr_version);
-        boost::algorithm::trim(curr_version);
+        auto version_file = config_folder / "version.txt";
+        if (fs::exists(version_file)) {
+            Slic3r::load_string_file(version_file, curr_version);
+            boost::algorithm::trim(curr_version);
+        }
     } catch (...) {}
     try {
-        Slic3r::load_string_file(cache_folder / "version.txt", cached_version);
-        boost::algorithm::trim(cached_version);
+        auto version_file = cache_folder / "version.txt";
+        if (fs::exists(version_file)) {
+            Slic3r::load_string_file(version_file, cached_version);
+            boost::algorithm::trim(cached_version);
+        }
     } catch (...) {}
     if (!cached_version.empty()) {
         bool   need_delete_cache = false;
@@ -980,9 +986,12 @@ void PresetUpdater::priv::sync_printer_config(std::string http_url)
 
     bool result = false;
     try {
-        Slic3r::load_string_file(cache_folder / "version.txt", cached_version);
-        boost::algorithm::trim(cached_version);
-        result = true;
+        auto version_file = cache_folder / "version.txt";
+        if (fs::exists(version_file)) {
+            Slic3r::load_string_file(version_file, cached_version);
+            boost::algorithm::trim(cached_version);
+            result = true;
+        }
     } catch (...) {}
     if (result) {
         BOOST_LOG_TRIVIAL(info) << format("[Orca Updater] found new printer config: %1%, prompt to update", cached_version);