Troubleshooting Appium Connection Issues: Resolving “Could not connect to server” Error

Troubleshooting Appium Connection Issues: Resolving "Could not connect to server" Error

5 April 2024 Stephan Petzl Leave a comment Tech-Help

Encountering error messages when working with Appium can be a roadblock for developers and testers alike. A common error faced is the “Could not connect to server; are you sure it’s running?” This guide aims to provide clear steps to resolve this issue and ensure a smooth Appium experience.

Understanding the Issue

This error typically indicates that Appium cannot establish a connection with the server. The causes can range from server settings to authorization issues. Here’s how to tackle it:

Adjust Appium Server Settings

One of the primary solutions is to modify the Appium server settings:

  • Open Appium and navigate to the “Automatic Server” tab.
  • Locate and tick the checkbox for “Allow Unauthorized Certificates”. This step is particularly relevant for Appium versions 1.6.* and is often the culprit for connection issues.

By allowing unauthorized certificates, Appium bypasses certain SSL certificate verification processes that may prevent the server from starting correctly.

Verify the App Path

Incorrect app path settings can also lead to connection failures. Ensure that you:

  • Go to the automatic server option within Appium.
  • Start the session and provide the correct path to your application’s .apk file.

Setting the right path is crucial and has resolved the issue for many users, particularly when using Appium server 1.7.

Appium Inspector Settings

If you’re using the Appium Inspector alongside the Appium server, ensure that your desired capabilities are set manually. Incorrect or missing capabilities in the Appium Inspector can lead to session creation failures. Here’s what to do:

  1. Start the Appium server.
  2. Open the Appium Inspector.
  3. Manually add the desired capabilities. For example:
  "platformName": "android",
  "deviceName": "emulator-5554",
  "appPackage": "com.yourapp",
  "appActivity": "MainActivity"

Ensure your capabilities match your testing environment, with the correct platform, device, and app details.


Resolving the “Could not connect to server” error in Appium typically involves checking server settings for authorization, ensuring the correct app path, and verifying the Appium Inspector’s configuration. By following the outlined steps, you should be able to establish a successful connection and proceed with your Appium tasks.

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