# Error loading nxt.properties from conf/unit-tests-nxt.properties

**URL:** <https://talk.jelurida.com/t/error-loading-nxt-properties-from-conf-unit-tests-nxt-properties/866>\
**Category:** Developers\
**Created:** [13 March 2023 14:27 UTC](https://talk.jelurida.com/t/error-loading-nxt-properties-from-conf-unit-tests-nxt-properties/866 "2023-03-13T14:27:55Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![6DeadSky9](https://talk.jelurida.com/user_avatar/talk.jelurida.com/6deadsky9/32/288_2.png) [@6DeadSky9](https://talk.jelurida.com/u/6DeadSky9)\
**Post date:** [13 March 2023 14:27 UTC](https://talk.jelurida.com/t/error-loading-nxt-properties-from-conf-unit-tests-nxt-properties/866/1 "2023-03-13T14:27:55Z")

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Hello team!

**I am trying to debug a contract but I can't launch it in debug mode** , I get the following message:

 ![imagen](https://talk.jelurida.com/uploads/default/original/1X/af42ba5b8ed6bd3cf044d860c290eb1e36c2fc22.png)

`Error loading nxt.properties from conf/unit-tests-nxt.properties`

I can't find anything in the documentation on how to set up such a file.

**What is the next step?**

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**Author:** ![petko.petkov](https://talk.jelurida.com/letter_avatar_proxy/v4/letter/p/eb8c5e/32.png) [@petko.petkov](https://talk.jelurida.com/u/petko.petkov)\
**Post date:** [13 March 2023 15:56 UTC](https://talk.jelurida.com/t/error-loading-nxt-properties-from-conf-unit-tests-nxt-properties/866/2 "2023-03-13T15:56:01Z")

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Not sure what's wrong. There is a `unit-tests-nxt.properties` in conf. Does your test run normally in non-debug mode?

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<div class="post-metadata">

**Author:** ![6DeadSky9](https://talk.jelurida.com/user_avatar/talk.jelurida.com/6deadsky9/32/288_2.png) [@6DeadSky9](https://talk.jelurida.com/u/6DeadSky9)\
**Post date:** [13 March 2023 16:23 UTC](https://talk.jelurida.com/t/error-loading-nxt-properties-from-conf-unit-tests-nxt-properties/866/3 "2023-03-13T16:23:02Z")

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No, it does not. If I change the configuration to

 ![imagen](https://talk.jelurida.com/uploads/default/original/1X/b5fa21084b4def2fe031b7503d346ce63f20acd0.png)

And I modify a little bit the ContractRunnerSuite, it works correctly, now I can see the tests.

With this I think I can continue.  
**Thank you!**