From fb4721bcb262541f66d4fd78f824b82fcfc1667a Mon Sep 17 00:00:00 2001
From: PaddleStroke <pierrelouis.boyer@gmail.com>
Date: Sat, 31 Jan 2026 15:19:36 +0100
Subject: [PATCH] Assembly: Remove solver msg when file is closed (#27210)

---
 src/Mod/Assembly/Gui/ViewProviderAssembly.cpp | 17 ++++++++++++-----
 src/Mod/Assembly/Gui/ViewProviderAssembly.h   |  1 +
 2 files changed, 13 insertions(+), 5 deletions(-)

diff --git a/src/Mod/Assembly/Gui/ViewProviderAssembly.cpp b/src/Mod/Assembly/Gui/ViewProviderAssembly.cpp
index 0d51c8335d..98f3757cac 100644
--- a/src/Mod/Assembly/Gui/ViewProviderAssembly.cpp
+++ b/src/Mod/Assembly/Gui/ViewProviderAssembly.cpp
@@ -130,6 +130,8 @@ ViewProviderAssembly::ViewProviderAssembly()
 ViewProviderAssembly::~ViewProviderAssembly()
 {
     m_preTransactionConn.disconnect();
+
+    removeTaskSolver();
 };
 
 QIcon ViewProviderAssembly::getIcon() const
@@ -354,11 +356,7 @@ void ViewProviderAssembly::unsetEdit(int mode)
             );
         }
 
-        Gui::TaskView::TaskView* taskView = Gui::Control().taskPanel();
-        if (taskView) {
-            // Waiting for the solver to support reporting information.
-            taskView->removeContextualPanel(taskSolver);
-        }
+        removeTaskSolver();
 
         connectSolverUpdate.disconnect();
         connectActivatedVP.disconnect();
@@ -368,6 +366,15 @@ void ViewProviderAssembly::unsetEdit(int mode)
     ViewProviderPart::unsetEdit(mode);
 }
 
+void ViewProviderAssembly::removeTaskSolver()
+{
+    Gui::TaskView::TaskView* taskView = Gui::Control().taskPanel();
+    if (taskView) {
+        // Waiting for the solver to support reporting information.
+        taskView->removeContextualPanel(taskSolver);
+    }
+}
+
 void ViewProviderAssembly::slotActivatedVP(const Gui::ViewProviderDocumentObject* vp, const char* name)
 {
     if (name && strcmp(name, ASSEMBLYKEY) == 0) {
diff --git a/src/Mod/Assembly/Gui/ViewProviderAssembly.h b/src/Mod/Assembly/Gui/ViewProviderAssembly.h
index a6b37aa697..8e7f3e5049 100644
--- a/src/Mod/Assembly/Gui/ViewProviderAssembly.h
+++ b/src/Mod/Assembly/Gui/ViewProviderAssembly.h
@@ -254,6 +254,7 @@ public:
 private:
     bool tryMouseMove(const SbVec2s& cursorPos, Gui::View3DInventorViewer* viewer);
     void tryInitMove(const SbVec2s& cursorPos, Gui::View3DInventorViewer* viewer);
+    void removeTaskSolver();
 
     void collectMovableObjects(
         App::DocumentObject* selRoot,