From c44ee31e9f50d68cb687d3683ffc91738a819430 Mon Sep 17 00:00:00 2001
From: Jonathan Feenstra <26406078+JonathanFeenstra@users.noreply.github.com>
Date: Tue, 15 Oct 2024 11:02:56 +0200
Subject: [PATCH] Prevent crash when opening NXM link before selecting instance
 (#2144)

---
 src/moapplication.cpp | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/src/moapplication.cpp b/src/moapplication.cpp
index bf6a4074..f06a85d1 100644
--- a/src/moapplication.cpp
+++ b/src/moapplication.cpp
@@ -390,8 +390,14 @@ void MOApplication::externalMessage(const QString& message)
       }
     }
   } else if (isNxmLink(message)) {
-    MessageDialog::showMessage(tr("Download started"), qApp->activeWindow(), false);
-    m_core->downloadRequestedNXM(message);
+    if (InstanceManager::singleton().currentInstance()->gamePlugin() == nullptr) {
+      // This can happen if MO2 is started with the --pick option and no instance has
+      // been selected yet, in which case m_core will be null.
+      reportError(tr("You need to select an instance before trying to download mods."));
+    } else {
+      MessageDialog::showMessage(tr("Download started"), qApp->activeWindow(), false);
+      m_core->downloadRequestedNXM(message);
+    }
   } else {
     cl::CommandLine cl;