Update to LitElement v3.0.0-pre.2

README.md

@@ -97,7 +97,7 @@ Note: If you need to add static files to the build, like the `images` folder or
 
    ```typescript
    import { html } from 'lit-element';
-   import { customElement } from 'lit-element/lib/decorators';
+   import { customElement } from 'lit-element/decorators';
 
    import { PageElement } from '../helpers/page-element';
 

package.json

@@ -26,7 +26,7 @@
   },
   "dependencies": {
     "@vaadin/router": "^1.7.2",
-    "lit-element": "^3.0.0-pre.1",
+    "lit-element": "^3.0.0-pre.2",
     "pwa-helper-components": "~0.2.10",
     "tslib": "^2.0.3"
   },

src/components/app-index.ts

@@ -6,7 +6,7 @@
  */
 
 import { LitElement, html, css } from 'lit-element';
-import { customElement, query } from 'lit-element/lib/decorators';
+import { customElement, query } from 'lit-element/decorators';
 
 import config from '../config';
 import { attachRouter, urlForName } from '../router';

src/helpers/page-element.ts

@@ -6,7 +6,7 @@
  */
 
 import { LitElement } from 'lit-element';
-import { internalProperty } from 'lit-element/lib/decorators';
+import { state } from 'lit-element/decorators';
 import type { PropertyValues } from 'lit-element';
 import type { Route, RouterLocation } from '@vaadin/router';
 
@@ -23,7 +23,7 @@ declare module '@vaadin/router/dist/vaadin-router' {
 }
 
 export class PageElement extends LitElement {
-  @internalProperty()
+  @state()
   protected location = {} as RouterLocation;
 
   private defaultTitleTemplate = `%s | ${config.appName}`;

src/pages/page-about.ts

@@ -6,7 +6,7 @@
  */
 
 import { html, css } from 'lit-element';
-import { customElement } from 'lit-element/lib/decorators';
+import { customElement } from 'lit-element/decorators';
 
 import { PageElement } from '../helpers/page-element';
 

src/pages/page-home.ts

@@ -6,7 +6,7 @@
  */
 
 import { html, css } from 'lit-element';
-import { customElement } from 'lit-element/lib/decorators';
+import { customElement } from 'lit-element/decorators';
 
 import { PageElement } from '../helpers/page-element';
 

src/pages/page-not-found.ts

@@ -6,7 +6,7 @@
  */
 
 import { html, css } from 'lit-element';
-import { customElement } from 'lit-element/lib/decorators';
+import { customElement } from 'lit-element/decorators';
 
 import { urlForName } from '../router';