Error during installation

Same problems during installation for me! I think its because i dont use "english" as lanquage.

The website encountered an unexpected error. Please try again later.
InvalidArgumentException: The configuration property settings.handler_settings.target_bundles.tags.0 doesn't exist. in Drupal\Core\Config\Schema\ArrayElement->get() (line 79 of core/lib/Drupal/Core/Config/Schema/ArrayElement.php).
Drupal\Core\Config\Schema\ArrayElement->get('settings.handler_settings.target_bundles.tags.0') (Line: 184)
Drupal\Core\Config\StorableConfigBase->castValue('settings.handler_settings.target_bundles.tags.0', 'tags') (Line: 216)
Drupal\Core\Config\StorableConfigBase->castValue('settings.handler_settings.target_bundles.tags', Array) (Line: 216)
Drupal\Core\Config\StorableConfigBase->castValue('settings.handler_settings.target_bundles', Array) (Line: 216)
Drupal\Core\Config\StorableConfigBase->castValue('settings.handler_settings', Array) (Line: 216)
Drupal\Core\Config\StorableConfigBase->castValue('settings', Array) (Line: 217)
Drupal\Core\Config\Config->save() (Line: 384)
locale_system_set_config_langcodes() (Line: 316)
locale_modules_installed(Array)
call_user_func_array('locale_modules_installed', Array) (Line: 393)
Drupal\Core\Extension\ModuleHandler->invokeAll('modules_installed', Array) (Line: 298)
Drupal\Core\Extension\ModuleInstaller->install(Array, ) (Line: 87)
Drupal\Core\ProxyClass\Extension\ModuleInstaller->install(Array, ) (Line: 280)
Drupal\Core\Installer\Form\SiteConfigureForm->submitForm(Array, Object)
call_user_func_array(Array, Array) (Line: 116)
Drupal\Core\Form\FormSubmitter->executeSubmitHandlers(Array, Object) (Line: 56)
Drupal\Core\Form\FormSubmitter->doSubmitForm(Array, Object) (Line: 588)
Drupal\Core\Form\FormBuilder->processForm('install_configure_form', Array, Object) (Line: 319)
Drupal\Core\Form\FormBuilder->buildForm('Drupal\Core\Installer\Form\SiteConfigureForm', Object) (Line: 880)
install_get_form('Drupal\Core\Installer\Form\SiteConfigureForm', Array) (Line: 570)
install_run_task(Array, Array) (Line: 526)
install_run_tasks(Array) (Line: 116)
install_drupal(Object) (Line: 39)

I can confirm the bug still existing in the current beta3. I used German language during installation.
---------

Direkt zum Inhalt
8.x-1.0-beta3 Installation tasks
Sprache auswählen (fertig)
Systemvoraussetzungen überprüfen (fertig)
Datenbank einrichten (fertig)
Website installieren (fertig)
Übersetzungen konfigurieren (fertig)
Website konfigurieren (aktiv)
Configure modules
Übersetzungen abschließen
Error
Statusmeldung
To adjust global defaults, go to admin/config/search/metatag. If you need to set metatags for a specific entity, edit it's bundle and add the Metatag field.
Eine Übersetzungsdatei wurde importiert. 4897 Übersetzungen wurden hinzugefügt, 0 Übersetzungen wurden aktualisiert und 0 Übersetzungen wurden entfernt.
The website encountered an unexpected error. Please try again later.
InvalidArgumentException: The configuration property settings.handler_settings.target_bundles.tags.0 doesn't exist. in Drupal\Core\Config\Schema\ArrayElement->get() (line 79 of core/lib/Drupal/Core/Config/Schema/ArrayElement.php).
Drupal\Core\Config\Schema\ArrayElement->get('settings.handler_settings.target_bundles.tags.0') (Line: 184)
Drupal\Core\Config\StorableConfigBase->castValue('settings.handler_settings.target_bundles.tags.0', 'tags') (Line: 216)
Drupal\Core\Config\StorableConfigBase->castValue('settings.handler_settings.target_bundles.tags', Array) (Line: 216)
Drupal\Core\Config\StorableConfigBase->castValue('settings.handler_settings.target_bundles', Array) (Line: 216)
Drupal\Core\Config\StorableConfigBase->castValue('settings.handler_settings', Array) (Line: 216)
Drupal\Core\Config\StorableConfigBase->castValue('settings', Array) (Line: 217)
Drupal\Core\Config\Config->save() (Line: 384)
locale_system_set_config_langcodes() (Line: 316)
locale_modules_installed(Array)
call_user_func_array('locale_modules_installed', Array) (Line: 393)
Drupal\Core\Extension\ModuleHandler->invokeAll('modules_installed', Array) (Line: 298)
Drupal\Core\Extension\ModuleInstaller->install(Array, ) (Line: 87)
Drupal\Core\ProxyClass\Extension\ModuleInstaller->install(Array, ) (Line: 280)
Drupal\Core\Installer\Form\SiteConfigureForm->submitForm(Array, Object)
call_user_func_array(Array, Array) (Line: 116)
Drupal\Core\Form\FormSubmitter->executeSubmitHandlers(Array, Object) (Line: 56)
Drupal\Core\Form\FormSubmitter->doSubmitForm(Array, Object) (Line: 588)
Drupal\Core\Form\FormBuilder->processForm('install_configure_form', Array, Object) (Line: 319)
Drupal\Core\Form\FormBuilder->buildForm('Drupal\Core\Installer\Form\SiteConfigureForm', Object) (Line: 880)
install_get_form('Drupal\Core\Installer\Form\SiteConfigureForm', Array) (Line: 570)
install_run_task(Array, Array) (Line: 526)
install_run_tasks(Array) (Line: 116)
install_drupal(Object) (Line: 39)

Please try the dev version and see if the problem still exists.

I just tried installing the dev version and I got:

The website encountered an unexpected error. Please try again later.
Drupal\Core\Config\UnmetDependenciesException: Configuration objects (block.block.seven_breadcrumbs, block.block.seven_content, block.block.seven_local_actions, block.block.seven_login, block.block.seven_messages, block.block.seven_page_title, block.block.seven_primary_local_tasks, block.block.seven_secondary_local_tasks, core.entity_form_display.node.page.default, core.entity_view_display.node.page.default, core.entity_view_display.node.page.teaser, core.entity_view_display.user.user.compact, core.entity_view_display.user.user.default, editor.editor.basic_html, editor.editor.full_html, field.field.node.page.body, field.field.user.user.user_picture, field.storage.user.user_picture, filter.format.basic_html, filter.format.full_html, filter.format.restricted_html, node.type.page) provided by thunder have unmet dependencies in Drupal\Core\Config\UnmetDependenciesException::create() (line 89 of core/lib/Drupal/Core/Config/UnmetDependenciesException.php).

Drupal\Core\Config\UnmetDependenciesException::create('thunder', Array) (Line: 454)
Drupal\Core\Config\ConfigInstaller->checkConfigurationToInstall('module', 'thunder') (Line: 136)
Drupal\Core\ProxyClass\Config\ConfigInstaller->checkConfigurationToInstall('module', 'thunder') (Line: 146)
Drupal\Core\Extension\ModuleInstaller->install(Array, ) (Line: 87)
Drupal\Core\ProxyClass\Extension\ModuleInstaller->install(Array, ) (Line: 1560)
install_install_profile(Array) (Line: 648)
install_run_task(Array, Array) (Line: 526)
install_run_tasks(Array) (Line: 116)
install_drupal(Object) (Line: 39)

hm, nevermind - I tried again with a manual Git checkout, that seems to work. That said, installation with development code works, thus this can be closed.