数据保存时报错

qweasdzxc

数据保存时报错，是什么意思？

1. data保存失败!!,Cannot read property 'length' of undefined
   
2. 编码：JUSTEP231020
   
3. 隐藏详细
   
4. Error: {"code":"JUSTEP231020","message":"data保存失败!!,Cannot read property 'length' of undefined"} at Object.create (http://localhost:8080/x5/UI2/v_8746c3be70e54d749323cead26626ff8l_zh_CNs_d_pc/system/core.min.js:71:217237) at n.saveData (http://localhost:8080/x5/UI2/v_1aa35fed64e04aeaa9774389439ace13l_zh_CNs_d_pc/system/common.min.js:15:43827) at n.method (http://localhost:8080/x5/UI2/v_1aa35fed64e04aeaa9774389439ace13l_zh_CNs_d_pc/system/common.min.js:15:60327) at n.execute (http://localhost:8080/x5/UI2/v_8746c3be70e54d749323cead26626ff8l_zh_CNs_d_pc/system/core.min.js:71:244247) at n.executeOperation (http://localhost:8080/x5/UI2/v_8746c3be70e54d749323cead26626ff8l_zh_CNs_d_pc/system/core.min.js:71:244981) at n._execEventOperation (http://localhost:8080/x5/UI2/v_8746c3be70e54d749323cead26626ff8l_zh_CNs_d_pc/system/core.min.js:71:247740) at n.callParent (http://localhost:8080/x5/UI2/v_8746c3be70e54d749323cead26626ff8l_zh_CNs_d_pc/system/core.min.js:71:236119) at n._execEventOperation (http://localhost:8080/x5/UI2/v_0ac1ca9ee1a5492fb69d27ac84a31f13l_zh_CNs_d_pc/system/components/comp.min.js:144:85364) at n.<anonymous> (http://localhost:8080/x5/UI2/v_8746c3be70e54d749323cead26626ff8l_zh_CNs_d_pc/system/core.min.js:71:248128) at n.fire (http://localhost:8080/x5/UI2/v_8746c3be70e54d749323cead26626ff8l_zh_CNs_d_pc/system/core.min.js:71:238680)

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1. Uncaught Error: __justepClientErrorStart__{"code":"JUSTEP231020","message":"data保存失败!!,Cannot read property 'length' of undefined"}__justepClientErrorEnd__
   
2.     at Object.create (core.min.js:71)
   
3.     at n.saveData (common.min.js:15)
   
4.     at n.method (common.min.js:15)
   
5.     at n.execute (core.min.js:71)
   
6.     at n.executeOperation (core.min.js:71)
   
7.     at n._execEventOperation (core.min.js:71)
   
8.     at n.callParent (core.min.js:71)
   
9.     at n._execEventOperation (comp.min.js:144)
   
10.     at n.<anonymous> (core.min.js:71)
    
11.     at n.fire (core.min.js:71)
    
12. create @ core.min.js:71
    
13. saveData @ common.min.js:15
    
14. method @ common.min.js:15
    
15. execute @ core.min.js:71
    
16. executeOperation @ core.min.js:71
    
17. _execEventOperation @ core.min.js:71
    
18. callParent @ core.min.js:71
    
19. _execEventOperation @ comp.min.js:144
    
20. (anonymous) @ core.min.js:71
    
21. fire @ core.min.js:71
    
22. fireEvent @ core.min.js:71
    
23. callParent @ core.min.js:71
    
24. fireEvent @ common.min.js:15
    
25. _doClick @ comp.min.js:144
    
26. i @ core.min.js:71
    
27. dispatch @ core.min.js:71
    
28. g.handle @ core.min.js:71

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qweasdzxc

找到原因了，结贴吧。