Notice: Undefined index: #webform_composite_elements in Drupal\loqate\Element\WebformAddressLoqate::preRenderWebformCompositeFormElement() (line 32 of modules/contrib/loqate/src/Element/WebformAddressLoqate.php). Drupal\loqate\Element\WebformAddressLoqate

@ruchirapingale, Here's the patch for the same, Hope this will help you.

Thanks

Verified this Notice also on HEAD of dev. Although it may be better first to make the element properly compatible with the Form API in #3027853: Make Loqate element compatible with the Form API.

I also get 2 additional Warnings that would need fixing as well:

Warning: Invalid argument supplied for foreach() in Drupal\loqate\Element\WebformAddressLoqate::preRenderWebformCompositeFormElement() (line 32 of /var/www/drupalvm/drupal/web/modules/contrib/loqate/src/Element/WebformAddressLoqate.php) #0 /var/www/drupalvm/drupal/web/core/includes/bootstrap.inc(587): _drupal_error_handler_real(2, 'Invalid argumen...', '/var/www/drupal...', 32, Array) #1 /var/www/drupalvm/drupal/web/modules/contrib/loqate/src/Element/WebformAddressLoqate.php(32): _drupal_error_handler(2, 'Invalid argumen...', '/var/www/drupal...', 32, Array) #2 [internal function]:

Warning: array_keys() expects parameter 1 to be array, null given in Drupal\loqate\Element\WebformAddressLoqate::preRenderWebformCompositeFormElement() (line 32 of /var/www/drupalvm/drupal/web/modules/contrib/loqate/src/Element/WebformAddressLoqate.php) #0 /var/www/drupalvm/drupal/web/core/includes/bootstrap.inc(587): _drupal_error_handler_real(2, 'array_keys() ex...', '/var/www/drupal...', 32, Array) #1 [internal function]: _drupal_error_handler(2, 'array_keys() ex...', '/var/www/drupal...', 32, Array) #2 /var/www/drupalvm/drupal/web/modules/contrib/loqate/src/Element/WebformAddressLoqate.php(32): array_keys(NULL) #3 [internal function]: Drupal\loqate\Element\WebformAddressLoqate::preRenderWebformCompositeFormElement(Array) #4 /var/www/drupalvm/drupal/web/core/lib/Drupal/Core/Render/Renderer.php(378): call_user_func(Array, Array) #5 /var/www/drupalvm/drupal/web/core/lib/Drupal/Core/Render/Renderer.php(450): Drupal\Core\Render\Renderer->doRender(Array) #6 /var/www/drupalvm/drupal/web/core/lib/Drupal/Core/Render/Renderer.php(195): Drupal\Core\Render\Renderer->doRender(Array, false) #7 /var/www/drupalvm/drupal/web/core/lib/Drupal/Core/Render/MainContent/HtmlRenderer.php(226): Drupal\Core\Render\Renderer->render(Array, false) #8 /var/www/drupalvm/drupal/web/core/lib/Drupal/Core/Render/Renderer.php(582): Drupal\Core\Render\MainContent\HtmlRenderer->Drupal\Core\Render\MainContent\{closure}() #9 /var/www/drupalvm/drupal/web/core/lib/Drupal/Core/Render/MainContent/HtmlRenderer.php(227): Drupal\Core\Render\Renderer->executeInRenderContext(Object(Drupal\Core\Render\RenderContext), Object(Closure)) #10 /var/www/drupalvm/drupal/web/core/lib/Drupal/Core/Render/MainContent/HtmlRenderer.php(117): Drupal\Core\Render\MainContent\HtmlRenderer->prepare(Array, Object(Symfony\Component\HttpFoundation\Request), Object(Drupal\Core\Routing\CurrentRouteMatch)) #11 /var/www/drupalvm/drupal/web/core/lib/Drupal/Core/EventSubscriber/MainContentViewSubscriber.php(90): Drupal\Core\Render\MainContent\HtmlRenderer->renderResponse(Array, Object(Symfony\Component\HttpFoundation\Request), Object(Drupal\Core\Routing\CurrentRouteMatch)) #12 [internal function]: Drupal\Core\EventSubscriber\MainContentViewSubscriber->onViewRenderArray(Object(Symfony\Component\HttpKernel\Event\GetResponseForControllerResultEvent), 'kernel.view', Object(Drupal\Component\EventDispatcher\ContainerAwareEventDispatcher)) #13

Closing this, as this bug hasn't gained much attention and the webform_address_loqate has been deprecated and will be removed in 3.x.