# Http(s) proxy problem

**URL:** <https://discuss.gradle.org/t/http-s-proxy-problem/23427>\
**Category:** Help/Discuss\
**Created:** [July 24, 2017, 2:59pm UTC](https://discuss.gradle.org/t/http-s-proxy-problem/23427 "2017-07-24T14:59:30Z")\
**Posts on this page:** 1\
**Showing post:** 2

<div class="post-metadata">

**Author:** ![hbkoenig](https://avatars.discourse-cdn.com/v4/letter/h/b77776/32.png) [@hbkoenig](https://discuss.gradle.org/u/hbkoenig)\
**Post date:** [July 25, 2017, 4:53pm UTC](https://discuss.gradle.org/t/http-s-proxy-problem/23427/2 "2017-07-25T16:53:36Z")

</div>

update:

running “gradle --offline” showed a new error message

```
FAILURE: Build failed with an exception.

* What went wrong:
A problem occurred configuring project ':app'.
> Failed to find target with hash string 'android-17' in: /opt/android-sdk-26

```

which pointed to some install issue with sdk-26 because

```
# ./sdkmanager --uninstall platforms\;android-17
Warning: Unable to find package platforms;android-17
done

```

so I’ve scratched and reinstalled sdk-26 and now – drum roll – gradle works fine and builds the sample project apk!!

still, without “–offline” I get those warnings

```
Warning: Failed to connect to host: https://dl.google.com/android/repository/addons_list-3.xml
Warning: Failed to connect to host: https://dl.google.com/android/repository/addons_list-2.xml
Warning: Failed to connect to host: https://dl.google.com/android/repository/addons_list-1.xml
Warning: Failed to download any source lists!
Warning: java.net.UnknownHostException: dl.google.com

```

which IMHO should not happen for my setup ?!

but never mind – it’s building again… 😉

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_[View the full topic](https://discuss.gradle.org/t/http-s-proxy-problem/23427)._