# Module upgrade from 7 to 8: "Can't instantiate page using constructor"

**URL:** <https://forum.inductiveautomation.com/t/module-upgrade-from-7-to-8-cant-instantiate-page-using-constructor/26182>\
**Category:** Module Development\
**Tags:** ignition80\
**Created:** [June 29, 2019, 8:12pm UTC](https://forum.inductiveautomation.com/t/module-upgrade-from-7-to-8-cant-instantiate-page-using-constructor/26182 "2019-06-29T20:12:56Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![mpderbec](https://avatars.discourse-cdn.com/v4/letter/m/bbe5ce/32.png) [@mpderbec](https://forum.inductiveautomation.com/u/mpderbec)\
**Post date:** [June 29, 2019, 8:12pm UTC](https://forum.inductiveautomation.com/t/module-upgrade-from-7-to-8-cant-instantiate-page-using-constructor/26182/1 "2019-06-29T20:12:56Z")

</div>

This is a public service announcement for anyone that is upgrading a module to work with Ignition 8 and they have a gateway component with a settings page.

If you receive an _Internal error_ when you navigate to your settings page, and the Ignition logs have this error:

```auto
jvm 1 | E [o.a.w.DefaultExceptionMapper] [20:05:24]: Unexpected error occurred
jvm 1 | org.apache.wicket.WicketRuntimeException: Can't instantiate page using constructor 'public com.inductiveautomation.ignition.gateway.web.pages.Config(org.apache.wicket.request.mapper.parameter.PageParameters)' and argument 'path=[seeq.hub]'. Might be it doesn't exist, may be it is not visible (public).

```

then you may need to change the following code:

Ignition 7.x-era constructor in your XxxxSettingsPage.java:

```auto
    public SeeqSettingsPage(final IConfigPage configPage) {
        super(configPage, null, new LenientResourceModel("Seeq.nav.settings.panelTitle"),
                ((GatewayContext) Application.get()).getPersistenceInterface().find(SeeqSettingsRecord.META, 0L));
    }

```

New Ignition 8.x-era constructor in your XxxxSettingsPage.java:

```auto
    public SeeqSettingsPage(final IConfigPage configPage) {
        super(configPage, null, new LenientResourceModel("Seeq.nav.settings.panelTitle"),
                ((IgnitionWebApp) Application.get()).getContext().getPersistenceInterface()
                        .find(SeeqSettingsRecord.META, 0L)
        );
    }

```

This was a needle in the haystack for me, hope it helps others!