[Vue warn]: Error in callback for watcher “value“

1.错误全文描述：

[Vue warn]: Error in callback for watcher "value": "TypeError: Cannot read properties of undefined (reading 'value')

2.问题点是给data的二级属性赋值报的错

3.原因：

直接在页面刚打开的方法里面为其赋值，第一次控制台会报上面那个错误，第二次就不会了，主要是解决第一次报错的

this.formData.recognitionResourceIndexCodes.push('某个值');

4.解决方法，使用万能的$nextTick

this.$nextTick(() => {this.formData.recognitionResourceIndexCodes.push('某个值');
});

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[Vue warn]: Error in callback for watcher “value“

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