octobercms/october · error · Error

Node user data is not set. Cannot use the displayProperty va

Error message

Node user data is not set. Cannot use the displayProperty value. {}

What it means

Error "Node user data is not set. Cannot use the displayProperty value. {}" thrown in octobercms/october.

Source

Thrown at modules/backend/vuecomponents/treeview/assets/js/node.js:398

            return (
                Array.isArray(this.branchDragAndDropMode) && this.branchDragAndDropMode.indexOf('custom-external') !== -1
            );
        },

        sortedNodes: function computeSortedNodes() {
            if (!this.branchSortBy) {
                return this.groupedNodes;
            }

            return utils.sortNodes(this.groupedNodes, this.branchSortBy);
        },

        nodeText: function computeNodeText() {
            var isFolder = utils.getSystemData(this.nodeData, 'treeviewGroupFolder');

            if (!isFolder && this.branchDisplayProperty && !this.isRoot) {
                if (!this.nodeData.userData) {
                    throw new Error(
                        'Node user data is not set. Cannot use the displayProperty value. ' + this.keyPathString
                    );
                }

                return utils.getLastGroupedPathSegment(
                    this.nodeData.userData[this.branchDisplayProperty],
                    this,
                    isFolder,
                    this.branchDisplayProperty
                );
            }

            return utils.getLastGroupedPathSegment(this.nodeData.label, this, isFolder);
        },

        nodeDataObj: function computeNodeData() {
            return this.nodeData;
        },

View on GitHub (pinned to b608633a7e)

When it happens

Trigger: Thrown at modules/backend/vuecomponents/treeview/assets/js/node.js:398 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of octobercms/october@b608633a7e (2026-08-21). Data as JSON: /api/errors/7c11880fb8296917. Report an issue: GitHub.