# 30 Day Challenge error

**URL:** <https://community.postman.com/t/30-day-challenge-error/23541>\
**Category:** Help Hub\
**Tags:** environments, collections\
**Created:** [May 8, 2021, 12:50pm UTC](https://community.postman.com/t/30-day-challenge-error/23541 "2021-05-08T12:50:29Z")\
**Posts on this page:** 6\
**Page:** 1

<div class="post-metadata">

**Author:** ![danpaul](https://avatars.discourse-cdn.com/v4/letter/d/bbce88/32.png) [@danpaul](https://community.postman.com/u/danpaul)\
**Post date:** [May 8, 2021, 12:50pm UTC](https://community.postman.com/t/30-day-challenge-error/23541/1 "2021-05-08T12:50:29Z")

</div>

Hello,

When I am attempting to complete Day 02 for the 30 Day Challenge, when I submit my solution the following error is shown - {  
“error”: {  
“name”: “instanceNotFoundError”,  
“message”: “We could not find the collection you are looking for”  
}  
}  
I have included request I am submitting [https://api.getpostman.com/collections/{{12958258-8949c5b0-bcba-4e4b-a0df-8002c6e9f309}](https://api.getpostman.com/collections/%7B%7B12958258-8949c5b0-bcba-4e4b-a0df-8002c6e9f309%7D)}

Thanks for you help in advance

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<div class="post-metadata">

**Author:** ![bpricilla](https://sea2.discourse-cdn.com/getpostman/user_avatar/community.postman.com/bpricilla/32/6511_2.png) [@bpricilla](https://community.postman.com/u/bpricilla)\
**Post date:** [May 8, 2021, 1:47pm UTC](https://community.postman.com/t/30-day-challenge-error/23541/2 "2021-05-08T13:47:16Z")

</div>

Hello @danpaul ,

Similar topic is discussed [here](https://community.postman.com/t/30dayspostmandeveloper-day-02-there-was-an-error-in-evaluating-the-test-script-typeerror-cannot-read-property-item-of-undefined/23348/5).

Please check your collection ID again 😊

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<div class="post-metadata">

**Author:** ![danpaul](https://avatars.discourse-cdn.com/v4/letter/d/bbce88/32.png) [@danpaul](https://community.postman.com/u/danpaul)\
**Post date:** [May 8, 2021, 2:46pm UTC](https://community.postman.com/t/30-day-challenge-error/23541/3 "2021-05-08T14:46:59Z")

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Hello,

Thanks for your response. I have checked the collection id and i can confirm it is 12958258-8949c5b0-bcba-4e4b-a0df-8002c6e9f309. I have checked that this is in the URL and I sent it again and I seeing the same error.

Thanks

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<div class="post-metadata">

**Author:** ![danpaul](https://avatars.discourse-cdn.com/v4/letter/d/bbce88/32.png) [@danpaul](https://community.postman.com/u/danpaul)\
**Post date:** [May 8, 2021, 3:10pm UTC](https://community.postman.com/t/30-day-challenge-error/23541/4 "2021-05-08T15:10:38Z")

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Hello,

I have found the collection id please see the screenshot

 ![image](https://us1.discourse-cdn.com/getpostman/original/3X/e/4/e47d7501384b58fe58d616d82b8d201d6289b929.png)

I have paste this into the URL

 ![image](https://us1.discourse-cdn.com/getpostman/original/3X/7/b/7b6d4678ffde3d8b94c3d925fbf1facc8c996371.png)

When I run this the same error is seen.

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<div class="post-metadata">

**Author:** ![pranavdavar](https://sea2.discourse-cdn.com/getpostman/user_avatar/community.postman.com/pranavdavar/32/9152_2.png) [@pranavdavar](https://community.postman.com/u/pranavdavar)\
**Post date:** [May 8, 2021, 5:11pm UTC](https://community.postman.com/t/30-day-challenge-error/23541/5 "2021-05-08T17:11:54Z")

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Hi @danpaul,

As per your screenshot you are adding the complete ID value in {{}} brackets, try submitting without {{}} brackets. Since these brackets denote variables. By this value, there will not be any variable defined and this would have resulted in a null value and final URL will look like  
“[https://api.getpostman.com/collections/](https://api.getpostman.com/collections/)”

You may check this in the postman console.

Hope this helps 🙂.

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<div class="post-metadata">

**Author:** ![danpaul](https://avatars.discourse-cdn.com/v4/letter/d/bbce88/32.png) [@danpaul](https://community.postman.com/u/danpaul)\
**Post date:** [May 8, 2021, 7:43pm UTC](https://community.postman.com/t/30-day-challenge-error/23541/6 "2021-05-08T19:43:17Z")

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Thanks darkphoenix I now getting a response