# TypeError: Cannot read property 'length' of undefined

**URL:** <https://discourse.nodered.org/t/typeerror-cannot-read-property-length-of-undefined/43503>\
**Category:** Share Your Projects\
**Created:** [1 April 2021 09:56 UTC](https://discourse.nodered.org/t/typeerror-cannot-read-property-length-of-undefined/43503 "2021-04-01T09:56:34Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![gaurav\_95](https://avatars.discourse-cdn.com/v4/letter/g/87869e/32.png) [@gaurav\_95](https://discourse.nodered.org/u/gaurav_95)\
**Post date:** [1 April 2021 09:56 UTC](https://discourse.nodered.org/t/typeerror-cannot-read-property-length-of-undefined/43503/1 "2021-04-01T09:56:34Z")

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1 Apr 14:42:55 - [error] [http request:917d3d4e.b2d] no response from server  
1 Apr 14:42:55 - [error] [function:4b8a42b9.33508c] TypeError: Cannot read property 'length' of undefined  
1 Apr 14:42:55 - [error] [function:3420d7a3.b927b8] TypeError: Cannot read property 'length' of undefined

how i can get the issue comming from which node

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**Author:** ![Steve-Mcl](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/steve-mcl/32/4826_2.png) [@Steve-Mcl](https://discourse.nodered.org/u/Steve-Mcl)\
**Post date:** [1 April 2021 10:03 UTC](https://discourse.nodered.org/t/typeerror-cannot-read-property-length-of-undefined/43503/2 "2021-04-01T10:03:38Z")

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Thats nice 🙂

Are you asking a question?

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**Author:** ![dceejay](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/dceejay/32/38_2.png) [@dceejay](https://discourse.nodered.org/u/dceejay)\
**Post date:** [1 April 2021 10:57 UTC](https://discourse.nodered.org/t/typeerror-cannot-read-property-length-of-undefined/43503/3 "2021-04-01T10:57:15Z")

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Maybe the search function ? - use cmd or ctrl-f to open the search then enter one of those id numbers (eg b8a42b9.33508c ) and see if you can find the relevant function node.

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**Author:** ![bestlong](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/bestlong/32/7742_2.png) [@bestlong](https://discourse.nodered.org/u/bestlong)\
**Post date:** [2 April 2021 10:36 UTC](https://discourse.nodered.org/t/typeerror-cannot-read-property-length-of-undefined/43503/5 "2021-04-02T10:36:40Z")

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[function:3420d7a3.b927b8]

part of 3420d7a3.b927b8 is node id

u can use "Search flows" find that function node.

![node-red search flows](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/3X/c/1/c1f700bbf4c709ad79fc1034a089856d85e9cff0.png)

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**Author:** ![system](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/1X/d073cd938eafa2e558d7c2cd59003b3ef4963033.png) [@system](https://discourse.nodered.org/u/system)\
**Post date:** [1 June 2021 10:37 UTC](https://discourse.nodered.org/t/typeerror-cannot-read-property-length-of-undefined/43503/6 "2021-06-01T10:37:24Z")

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