diff --git a/src/Mod/Part/Gui/CrossSections.cpp b/src/Mod/Part/Gui/CrossSections.cpp
index 718cb55e6c..f388e94d27 100644
--- a/src/Mod/Part/Gui/CrossSections.cpp
+++ b/src/Mod/Part/Gui/CrossSections.cpp
@@ -54,6 +54,10 @@
 #include "CrossSections.h"
 #include "ui_CrossSections.h"
 
+#include <QMessageBox>
+#include <Base/Interpreter.h>
+#include <Gui/MainWindow.h>
+
 
 using namespace PartGui;
 namespace sp = std::placeholders;
@@ -205,11 +209,12 @@ void CrossSections::keyPressEvent(QKeyEvent* ke)
 
 void CrossSections::accept()
 {
-    apply();
-    QDialog::accept();
+    if (apply()) {
+        QDialog::accept();
+    }
 }
 
-void CrossSections::apply()
+bool CrossSections::apply()
 {
     std::vector<App::DocumentObject*> docobjs = Gui::Selection().
             getObjectsOfType(App::DocumentObject::getClassTypeId());
@@ -267,38 +272,46 @@ void CrossSections::apply()
     }
 #else
     Base::SequencerLauncher seq("Cross-sections…", obj.size() * (d.size() + 1));
-    Gui::Command::runCommand(Gui::Command::App, "import Part\n");
-    Gui::Command::runCommand(Gui::Command::App, "from FreeCAD import Base\n");
-    for (auto it : obj) {
-        App::Document* doc = it->getDocument();
-        std::string s = it->getNameInDocument();
-        s += "_cs";
-        Gui::Command::runCommand(Gui::Command::App, QStringLiteral(
-            "wires=list()\n"
-            "shape=FreeCAD.getDocument(\"%1\").%2.Shape\n")
-            .arg(QLatin1String(doc->getName()),
-                 QLatin1String(it->getNameInDocument())).toLatin1());
-
-        for (double jt : d) {
+    try {
+        Gui::Command::runCommand(Gui::Command::App, "import Part\n");
+        Gui::Command::runCommand(Gui::Command::App, "from FreeCAD import Base\n");
+        for (auto it : obj) {
+            App::Document* doc = it->getDocument();
+            std::string s = it->getNameInDocument();
+            s += "_cs";
             Gui::Command::runCommand(Gui::Command::App, QStringLiteral(
-                "for i in shape.slice(Base.Vector(%1,%2,%3),%4):\n"
-                "    wires.append(i)\n"
-                ).arg(a).arg(b).arg(c).arg(jt).toLatin1());
-            seq.next();
+                "wires=list()\n"
+                "shape=FreeCAD.getDocument(\"%1\").%2.Shape\n")
+                .arg(QLatin1String(doc->getName()),
+                     QLatin1String(it->getNameInDocument())).toLatin1());
+
+            for (double jt : d) {
+                Gui::Command::runCommand(Gui::Command::App, QStringLiteral(
+                    "for i in shape.slice(Base.Vector(%1,%2,%3),%4):\n"
+                    "    wires.append(i)\n"
+                    ).arg(a).arg(b).arg(c).arg(jt).toLatin1());
+                seq.next();
+            }
+
+            Gui::Command::runCommand(Gui::Command::App, QStringLiteral(
+                "comp=Part.Compound(wires)\n"
+                "slice=FreeCAD.getDocument(\"%1\").addObject(\"Part::Feature\",\"%2\")\n"
+                "slice.Shape=comp\n"
+                "slice.purgeTouched()\n"
+                "del slice,comp,wires,shape")
+                .arg(QLatin1String(doc->getName()),
+                     QLatin1String(s.c_str())).toLatin1());
         }
-
-        Gui::Command::runCommand(Gui::Command::App, QStringLiteral(
-            "comp=Part.Compound(wires)\n"
-            "slice=FreeCAD.getDocument(\"%1\").addObject(\"Part::Feature\",\"%2\")\n"
-            "slice.Shape=comp\n"
-            "slice.purgeTouched()\n"
-            "del slice,comp,wires,shape")
-            .arg(QLatin1String(doc->getName()),
-                 QLatin1String(s.c_str())).toLatin1());
-
-        seq.next();
+    } catch (Base::Exception& e) {
+        e.reportException();
+        QMessageBox::critical(Gui::getMainWindow(), tr("Cannot compute cross-sections"), QString::fromStdString(e.getMessage()));
+        return false;
     }
+
+    seq.next();
 #endif
+
+    return true;
 }
 
 void CrossSections::xyPlaneClicked()
diff --git a/src/Mod/Part/Gui/CrossSections.h b/src/Mod/Part/Gui/CrossSections.h
index 849b872af6..5ba7d8d552 100644
--- a/src/Mod/Part/Gui/CrossSections.h
+++ b/src/Mod/Part/Gui/CrossSections.h
@@ -49,7 +49,7 @@ public:
     explicit CrossSections(const Base::BoundBox3d& bb, QWidget* parent = nullptr, Qt::WindowFlags fl = Qt::WindowFlags());
     ~CrossSections() override;
     void accept() override;
-    void apply();
+    bool apply();
 
 protected:
     void changeEvent(QEvent *e) override;