diff --git a/src/plugins/cmakeprojectmanager/cmakebuildsystem.cpp b/src/plugins/cmakeprojectmanager/cmakebuildsystem.cpp
index 7d1d6cf5f56..c77f7855100 100644
--- a/src/plugins/cmakeprojectmanager/cmakebuildsystem.cpp
+++ b/src/plugins/cmakeprojectmanager/cmakebuildsystem.cpp
@@ -390,6 +390,12 @@ void CMakeBuildSystem::setParametersAndRequestParse(const BuildDirParameters &pa
                             tr("The kit needs to define a CMake tool to parse this project.")));
         return;
     }
+    if (!parameters.cmakeTool()->hasFileApi()) {
+        TaskHub::addTask(BuildSystemTask(Task::Error,
+                                         CMakeKitAspect::msgUnsupportedVersion(
+                                             parameters.cmakeTool()->version().fullVersion)));
+        return;
+    }
     QTC_ASSERT(parameters.isValid(), return );
 
     m_parameters = parameters;
diff --git a/src/plugins/cmakeprojectmanager/cmakekitinformation.cpp b/src/plugins/cmakeprojectmanager/cmakekitinformation.cpp
index bfafbd42ac0..1343e331b29 100644
--- a/src/plugins/cmakeprojectmanager/cmakekitinformation.cpp
+++ b/src/plugins/cmakeprojectmanager/cmakekitinformation.cpp
@@ -255,10 +255,7 @@ Tasks CMakeKitAspect::validate(const Kit *k) const
     if (tool) {
         CMakeTool::Version version = tool->version();
         if (version.major < 3 || (version.major == 3 && version.minor < 14)) {
-            result << BuildSystemTask(Task::Warning,
-                                      tr("CMake version %1 is unsupported. Please update to "
-                                         "version 3.14 (with file-api) or later.")
-                                          .arg(QString::fromUtf8(version.fullVersion)));
+            result << BuildSystemTask(Task::Warning, msgUnsupportedVersion(version.fullVersion));
         }
     }
     return result;
@@ -305,6 +302,13 @@ QSet<Utils::Id> CMakeKitAspect::availableFeatures(const Kit *k) const
     return {};
 }
 
+QString CMakeKitAspect::msgUnsupportedVersion(const QByteArray &versionString)
+{
+    return tr("CMake version %1 is unsupported. Please update to "
+              "version 3.14 (with file-api) or later.")
+        .arg(QString::fromUtf8(versionString));
+}
+
 // --------------------------------------------------------------------
 // CMakeGeneratorKitAspect:
 // --------------------------------------------------------------------
diff --git a/src/plugins/cmakeprojectmanager/cmakekitinformation.h b/src/plugins/cmakeprojectmanager/cmakekitinformation.h
index 8edfba91e6c..71444463a45 100644
--- a/src/plugins/cmakeprojectmanager/cmakekitinformation.h
+++ b/src/plugins/cmakeprojectmanager/cmakekitinformation.h
@@ -56,6 +56,8 @@ public:
     void addToMacroExpander(ProjectExplorer::Kit *k, Utils::MacroExpander *expander) const final;
 
     QSet<Utils::Id> availableFeatures(const ProjectExplorer::Kit *k) const final;
+
+    static QString msgUnsupportedVersion(const QByteArray &versionString);
 };
 
 class CMAKE_EXPORT CMakeGeneratorKitAspect : public ProjectExplorer::KitAspect
diff --git a/src/plugins/cmakeprojectmanager/cmakesettingspage.cpp b/src/plugins/cmakeprojectmanager/cmakesettingspage.cpp
index e26a0cb9706..30e1a50dd38 100644
--- a/src/plugins/cmakeprojectmanager/cmakesettingspage.cpp
+++ b/src/plugins/cmakeprojectmanager/cmakesettingspage.cpp
@@ -204,7 +204,8 @@ public:
             if (column != 0)
                 return QVariant();
 
-            const bool hasError = !m_pathExists || !m_pathIsFile || !m_pathIsExecutable;
+            const bool hasError = !m_isSupported || !m_pathExists || !m_pathIsFile
+                                  || !m_pathIsExecutable;
             if (hasError)
                 return Utils::Icons::CRITICAL.icon();
             return QVariant();