# Unable to compile and run import-export-app

**URL:** <https://community.dhis2.org/t/unable-to-compile-and-run-import-export-app/41767>\
**Category:** Development - Développement\
**Created:** [22 January 2021 16:18 UTC](https://community.dhis2.org/t/unable-to-compile-and-run-import-export-app/41767 "2021-01-22T16:18:20Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![Edward\_Robinson](https://dhis2.b-cdn.net/user_avatar/community.dhis2.org/edward_robinson/32/27464_2.png) [@Edward\_Robinson](https://community.dhis2.org/u/Edward_Robinson)\
**Post date:** [22 January 2021 16:18 UTC](https://community.dhis2.org/t/unable-to-compile-and-run-import-export-app/41767/1 "2021-01-22T16:18:20Z")

</div>

I attempted to set up my environment (Windows) for dev and want to be able to debug the import/export app to get to the bottom of an issue one of our installations is experiencing. After doing a yarn start from the import-export-app source folder, it starts the server and launches the browser window but I get the following (the login UI pops up very briefly before the error):

 ![image](https://dhis2.b-cdn.net/uploads/default/original/3X/4/e/4e62c0deb4c9695b7c49e8670a76bee371790e1d.png)

My console output looks like this:

```
E:\Sources\import-export-app>yarn start
yarn run v1.22.5
$ d2-app-scripts start
Generating internationalization strings...
No i18n updates found!
Bootstrapping local appShell...
A local appShell exists, skipping bootstrap. Use --force to update.
Building app import-export...

Starting development server...
The app import-export is now available on port 3000

```

Any ideas? At what point do I tell the app where my DHIS 2 app is deployed? Thanks in advance!

_EDIT_ - in case it’s useful, this is the dev console of the browser:

 ![image](https://dhis2.b-cdn.net/uploads/default/original/3X/b/9/b93e656395ac3321213cc9e76b25d3c154587a5f.png)  
 ![image](https://dhis2.b-cdn.net/uploads/default/original/3X/0/e/0e48d77e7a3b58e71924a68aae8f77f069782595.png)