未定义不是对象（评估“ r.urlTree”）

Question

有时在Angular 6应用程序中会报告错误。我从ErrorHandler获取信息，并将其发布到错误数据库。我从错误堆栈中获得的所有信息都属于vendor或polyfills捆绑包，我无法在同一设备上重现它。知道会发生什么吗？有人经历过类似的经历吗？

{
        "agent": "OS: Mac OS X 10.15.0 | Browser: Safari 13.0.1 | Device: Other 0.0.0",
        "message": "undefined is not an object (evaluating 'r.urlTree')",
        "name": "TypeError",
        "stack": [
            {
                "columnNumber": 426011,
                "lineNumber": 1,
                "fileName": "https://www.myapp.com/vendor.19003f536e32efb3f8e2.js",
                "source": "https://www.myapp.com/vendor.19003f536e32efb3f8e2.js:1:426011"
            },
            {
                "fileName": "[native code]",
                "functionName": "forEach",
                "source": "forEach@[native code]"
            },
            {
                "columnNumber": 425926,
                "lineNumber": 1,
                "fileName": "https://www.myapp.com/vendor.19003f536e32efb3f8e2.js",
                "source": "https://www.myapp.com/vendor.19003f536e32efb3f8e2.js:1:425926"
            },
            {
                "columnNumber": 319818,
                "lineNumber": 1,
                "fileName": "https://www.myapp.com/vendor.19003f536e32efb3f8e2.js",
                "functionName": "onInvoke",
                "source": "onInvoke@https://www.myapp.com/vendor.19003f536e32efb3f8e2.js:1:319818"
            },
            {
                "columnNumber": 3531,
                "lineNumber": 1,
                "fileName": "https://www.myapp.com/polyfills.e7eccfefd953dba9834b.js",
                "source": "https://www.myapp.com/polyfills.e7eccfefd953dba9834b.js:1:3531"
            }
        ]
    }