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diff --git a/remote/test/puppeteer/packages/puppeteer-core/src/common/Errors.ts b/remote/test/puppeteer/packages/puppeteer-core/src/common/Errors.ts
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+++ b/remote/test/puppeteer/packages/puppeteer-core/src/common/Errors.ts
@@ -0,0 +1,115 @@
+/**
+ * Copyright 2018 Google Inc. All rights reserved.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/**
+ * @deprecated Do not use.
+ *
+ * @public
+ */
+export class CustomError extends Error {
+  /**
+   * @internal
+   */
+  constructor(message?: string) {
+    super(message);
+    this.name = this.constructor.name;
+    Error.captureStackTrace(this, this.constructor);
+  }
+}
+
+/**
+ * TimeoutError is emitted whenever certain operations are terminated due to
+ * timeout.
+ *
+ * @remarks
+ * Example operations are {@link Page.waitForSelector | page.waitForSelector} or
+ * {@link PuppeteerNode.launch | puppeteer.launch}.
+ *
+ * @public
+ */
+export class TimeoutError extends CustomError {}
+
+/**
+ * ProtocolError is emitted whenever there is an error from the protocol.
+ *
+ * @public
+ */
+export class ProtocolError extends CustomError {
+  #code?: number;
+  #originalMessage = '';
+
+  set code(code: number | undefined) {
+    this.#code = code;
+  }
+  /**
+   * @readonly
+   * @public
+   */
+  get code(): number | undefined {
+    return this.#code;
+  }
+
+  set originalMessage(originalMessage: string) {
+    this.#originalMessage = originalMessage;
+  }
+  /**
+   * @readonly
+   * @public
+   */
+  get originalMessage(): string {
+    return this.#originalMessage;
+  }
+}
+
+/**
+ * @deprecated Do not use.
+ *
+ * @public
+ */
+export interface PuppeteerErrors {
+  TimeoutError: typeof TimeoutError;
+  ProtocolError: typeof ProtocolError;
+}
+
+/**
+ * @deprecated Import error classes directly.
+ *
+ * Puppeteer methods might throw errors if they are unable to fulfill a request.
+ * For example, `page.waitForSelector(selector[, options])` might fail if the
+ * selector doesn't match any nodes during the given timeframe.
+ *
+ * For certain types of errors Puppeteer uses specific error classes. These
+ * classes are available via `puppeteer.errors`.
+ *
+ * @example
+ * An example of handling a timeout error:
+ *
+ * ```ts
+ * try {
+ *   await page.waitForSelector('.foo');
+ * } catch (e) {
+ *   if (e instanceof TimeoutError) {
+ *     // Do something if this is a timeout.
+ *   }
+ * }
+ * ```
+ *
+ * @public
+ */
+export const errors: PuppeteerErrors = Object.freeze({
+  TimeoutError,
+  ProtocolError,
+});