# Tutorial, different instructions

**URL:** <https://nextstrain.discourse.group/t/tutorial-different-instructions/541>\
**Category:** Uncategorized\
**Created:** [May 21, 2021, 1:32pm UTC](https://nextstrain.discourse.group/t/tutorial-different-instructions/541 "2021-05-21T13:32:18Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![jiehuang001](https://avatars.discourse-cdn.com/v4/letter/j/e5b9ba/32.png) [@jiehuang001](https://nextstrain.discourse.group/u/jiehuang001)\
**Post date:** [May 21, 2021, 1:32pm UTC](https://nextstrain.discourse.group/t/tutorial-different-instructions/541/1 "2021-05-21T13:32:19Z")

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Hi there:

I am following the online documentation step-by-step to learn nextStrain thoroughly.

Below are my two questions:

1. In the first section “Install Nextstrain”, I installed Nextstrain successfully. Then, at the “Explore SARS-CoV-2 evolution”, why the tutorial instructs me to run “curl nextstrain.yml --compressed -o nextstrain.yml” and “npm install --global auspice” again, since I already installed NextStrain in the “Install Nextstrain” section at the beginning?

2. Also, the instruction for visualization is different. This time, it asks me to go to ([http://auspice.us/](http://auspice.us/)) and drag and drop the JSON file auspice/ncov\_global.json. but for the ZIKA tutorial, I was told to open localhost. So, why the difference?

Thank you very much & best regadrs,  
jie

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**Author:** ![james](https://yyz1.discourse-cdn.com/flex031/user_avatar/nextstrain.discourse.group/james/32/11_2.png) [@james](https://nextstrain.discourse.group/u/james)\
**Post date:** [May 24, 2021, 12:12am UTC](https://nextstrain.discourse.group/t/tutorial-different-instructions/541/2 "2021-05-24T00:12:18Z")

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Hi @jiehuang001 – our documentation could always be better so thanks for pointing these inconsistencies out! To answer your two points:

1. Since you’ve already installed nextstrain, you can skip this section
2. There are multiple ways of visualising the data through Auspice – the online drag-and-drop tool [auspice.us](http://auspice.us) or by running auspice locally (i.e. `localhost`). You can pick whichever method you are most comfortable with.

best,  
james