TypeError: undefined is not an object (evaluating 'o.type.name')

叁歲伎倆 2023-06-22 13:37 212阅读 0赞

uni-app启动报错，造成白屏，H5端正常，小程序和APP报错如下：

reportJSException >>>> exception function:createInstanceContext, exception:white screen cause create instanceContext failed,check js stack ->TypeError: undefined is not an object (evaluating 'o.type.name')  
getTemplateInfo== template md5 d4747f701467e54e45cbae7bc3c29e61 length 17231462 base64 md5 1HR/cBRn5U5Fy657w8KeYQ== response header \{"templateSourceBase64MD5":\["1HR/cBRn5U5Fy657w8KeYQ=="\],"templateSourceMD5":\["d4747f701467e54e45cbae7bc3c29e61"\]\}

**原因：**

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0hSTTI0NTQ_size_16_color_FFFFFF_t_70][]

**解决方式：**

首先我们需要定位到错误在哪里，直接运行到HbuilderX运行到真机无法定位到问题出自哪一个文件，我们需要点击控制台的debug图标，如下：

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0hSTTI0NTQ_size_16_color_FFFFFF_t_70 1][]

打开真机调试视图之后，看到如下报错信息就能够定位到问题文件：

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0hSTTI0NTQ_size_16_color_FFFFFF_t_70 2][]

找到对应的文件

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0hSTTI0NTQ_size_16_color_FFFFFF_t_70 3][]

保存，问题解决。

uni-app H5端容错率较高，APP端和小程序端语法更严格，报的错误很难定位到问题点，写组件的时候一定要注意给属性声明类型。

[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0hSTTI0NTQ_size_16_color_FFFFFF_t_70]: https://img-blog.csdnimg.cn/20191219100533338.png?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0hSTTI0NTQ=,size_16,color_FFFFFF,t_70
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0hSTTI0NTQ_size_16_color_FFFFFF_t_70 1]: https://img-blog.csdnimg.cn/2019121910035328.png?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0hSTTI0NTQ=,size_16,color_FFFFFF,t_70
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0hSTTI0NTQ_size_16_color_FFFFFF_t_70 2]: https://img-blog.csdnimg.cn/201912191004391.png?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0hSTTI0NTQ=,size_16,color_FFFFFF,t_70
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0hSTTI0NTQ_size_16_color_FFFFFF_t_70 3]: https://img-blog.csdnimg.cn/20191219100614813.png?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0hSTTI0NTQ=,size_16,color_FFFFFF,t_70