Unhandled Error
TypeError: Cannot read property 'name' of null
at Blockly.BlockSvg.mutationToDom (app://./js/chunk-vendors.192f42e0.js:1689:1058113)
at Object.Blockly.Procedures.mutateCallers (app://./js/chunk-vendors.192f42e0.js:1689:954859)
at Blockly.BlockSvg.compose (app://./js/chunk-vendors.192f42e0.js:1689:1059594)
at Blockly.Mutator.workspaceChanged (app://./js/chunk-vendors.192f42e0.js:1689:836556)
at Blockly.WorkspaceSvg.Blockly.Workspace.fireChangeListener (app://./js/chunk-vendors.192f42e0.js:1689:671352)
at Blockly.Events.fireNow (app://./js/chunk-vendors.192f42e0.js:1689:648271)
Unhandled Error TypeError: Cannot read property 'name' of null at Blockly.BlockSvg.mutationToDom (app://./js/chunk-vendors.192f42e0.js:1689:1058113) at Object.Blockly.Procedures.mutateCallers (app://./js/chunk-vendors.192f42e0.js:1689:954859) at Blockly.BlockSvg.compose (app://./js/chunk-vendors.192f42e0.js:1689:1059594) at Blockly.Mutator.workspaceChanged (app://./js/chunk-vendors.192f42e0.js:1689:836556) at Blockly.WorkspaceSvg.Blockly.Workspace.fireChangeListener (app://./js/chunk-vendors.192f42e0.js:1689:671352) at Blockly.Events.fireNow (app://./js/chunk-vendors.192f42e0.js:1689:648271)