diff --git a/src/plugins/qmakeprojectmanager/qmakenodetreebuilder.cpp b/src/plugins/qmakeprojectmanager/qmakenodetreebuilder.cpp
index 0e66a71674b..34a52ddc82b 100644
--- a/src/plugins/qmakeprojectmanager/qmakenodetreebuilder.cpp
+++ b/src/plugins/qmakeprojectmanager/qmakenodetreebuilder.cpp
@@ -162,14 +162,14 @@ static void createTree(const QmakePriFile *pri, QmakePriFileNode *node)
                 for (const FileName &file : newFilePaths) {
                     auto vfs = pri->project()->qmakeVfs();
                     QString contents;
+                    QString errorMessage;
                     // Prefer the cumulative file if it's non-empty, based on the assumption
                     // that it contains more "stuff".
-                    vfs->readVirtualFile(file.toString(), QMakeVfs::VfsCumulative, &contents);
+                    vfs->readFile(file.toString(), QMakeVfs::VfsCumulative, &contents, &errorMessage);
                     // If the cumulative evaluation botched the file too much, try the exact one.
                     if (contents.isEmpty())
-                        vfs->readVirtualFile(file.toString(), QMakeVfs::VfsExact, &contents);
-                    auto resourceNode
-                            = new ResourceEditor::ResourceTopLevelNode(file, false, contents, vfolder);
+                        vfs->readFile(file.toString(), QMakeVfs::VfsExact, &contents, &errorMessage);
+                    auto resourceNode = new ResourceEditor::ResourceTopLevelNode(file, false, contents, vfolder);
                     vfolder->addNode(resourceNode);
                 }
             } else {
diff --git a/src/plugins/qmakeprojectmanager/qmakeproject.cpp b/src/plugins/qmakeprojectmanager/qmakeproject.cpp
index b335fc2484c..abedb874033 100644
--- a/src/plugins/qmakeprojectmanager/qmakeproject.cpp
+++ b/src/plugins/qmakeprojectmanager/qmakeproject.cpp
@@ -358,14 +358,15 @@ void QmakeProject::updateQmlJSCodeModel()
         projectInfo.activeResourceFiles.append(exactResources);
         projectInfo.allResourceFiles.append(exactResources);
         projectInfo.allResourceFiles.append(cumulativeResources);
+        QString errorMessage;
         foreach (const QString &rc, exactResources) {
             QString contents;
-            if (m_qmakeVfs->readVirtualFile(rc, QMakeVfs::VfsExact, &contents))
+            if (m_qmakeVfs->readFile(rc, QMakeVfs::VfsExact, &contents, &errorMessage) == QMakeVfs::ReadOk)
                 projectInfo.resourceFileContents[rc] = contents;
         }
         foreach (const QString &rc, cumulativeResources) {
             QString contents;
-            if (m_qmakeVfs->readVirtualFile(rc, QMakeVfs::VfsCumulative, &contents))
+            if (m_qmakeVfs->readFile(rc, QMakeVfs::VfsCumulative, &contents, &errorMessage) == QMakeVfs::ReadOk)
                 projectInfo.resourceFileContents[rc] = contents;
         }
         if (!hasQmlLib) {