appium / appium/java-client

org.openqa.selenium.WebDriverException: Returned value cannot be converted to List<String>: {stacktrace=NoSuchDriverError: A session is either terminated or not started

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bug
Dominant language
Java
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Description

Do I have the most recent component updates?
  • I use the most recent available driver/plugin and server versions
Is the component officially supported by the Appium team?
  • I have verified the component repository is present under the Appium organization in GitHub
Is there an existing issue for this?
  • I have searched the existing issues
Current Behavior

i am getting below error when i am below code

org.openqa.selenium.WebDriverException: Returned value cannot be converted to List: {stacktrace=NoSuchDriverError: A session is either terminated or not started

	<dependency>
	    <groupId>io.appium</groupId>
	    <artifactId>java-client</artifactId>
	    <version>9.0.0</version>
	</dependency>

uiautomator2@2.33.1

Expected Behavior

browser should launch

Minimal Reproducible Example

public static RemoteWebDriver driver;
public static AndroidDriver androidDriver;
public Properties props;
public ChromeOptions chrOpts = new ChromeOptions();

public static RemoteWebDriver init_driver(String runType, String broswerType, String Url) throws MalformedURLException, InterruptedException
{
try {
switch(runType)
{
case "mobile":
UiAutomator2Options options = new UiAutomator2Options();
options.setDeviceName("Galaxy Note10 Lite");
options.setUdid("RF8N81RNYLH");
options.setPlatformVersion("10");
options.setAutomationName(AutomationName.ANDROID_UIAUTOMATOR2);//Optional
options.setPlatformName("Android");//Optional
options.setCapability("browserName", broswerType);
options.setCapability("browserVersion", "119");
options.setCapability("appium:noReset", true);
options.setNewCommandTimeout(Duration.ofSeconds(30));

			options.setNoReset(true);
			androidDriver=new AndroidDriver(new URL("http://127.0.0.1:4723"), options);
			androidDriver.get(Url);
			
			System.out.println(androidDriver.getContextHandles());
			androidDriver.findElement(By.id("details-button")).click();
			androidDriver.findElement(By.id("proceed-link")).click();
			Thread.sleep(1500);
			
			androidDriver.get("http://localhost:8123");
			androidDriver.manage().timeouts().implicitlyWait(Duration.ofSeconds(30));
			driver = androidDriver;
			break;
Environment
  • Operating system:
  • Appium server version (output of appium --version):
  • Appium driver(s) and their version(s):
  • Appium plugin(s) and their version(s):
  • Node.js version (output of node --version):
  • npm version (output of npm --version):
  • Last component(s) version which did not exhibit the problem:
  • Platform and version under test:
  • Real device or emulator/simulator:
Link to Appium Logs

TTP] {"desiredCapabilities":{"appium:noReset":true,"appium:udid":"RF8N81RNYLH","appium:newCommandTimeout":30,"browserVersion":"119","browserName":"chrome","appium:deviceName":"Galaxy Note10 Lite","platformName":"Android","appium:automationName":"UIAutomator2","appium:platformVersion":"10"}}
[AppiumDriver@52ce] Calling AppiumDriver.createSession() with args: [{"appium:noReset":true,"appium:udid":"RF8N81RNYLH","appium:newCommandTimeout":30,"browserVersion":"119","browserName":"chrome","appium:deviceName":"Galaxy Note10 Lite","platformName":"Android","appium:automationName":"UIAutomator2","appium:platformVersion":"10"},null,null]
[AppiumDriver@52ce] Event 'newSessionRequested' logged at 1698834879654 (16:04:39 GMT+0530 (India Standard Time))
[AppiumDriver@52ce] Encountered internal error running command: SessionNotCreatedError: A new session could not be created. Details: Session capabilities format must comply to the W3C standard. Make sure your client is up to date. See https://www.w3.org/TR/webdriver/#new-session for more details.
[AppiumDriver@52ce] at makeNonW3cCapsError (C:\Users\lakshmanans\AppData\Roaming\npm\node_modules\appium\lib\utils.js:31:10)
[AppiumDriver@52ce] at AppiumDriver.createSession (C:\Users\lakshmanans\AppData\Roaming\npm\node_modules\appium\lib\appium.js:260:32)
[AppiumDriver@52ce] at commandExecutor (C:\Users\lakshmanans\AppData\Roaming\npm\node_modules\appium\node_modules@appium\base-driver\lib\basedriver\driver.ts:107:18)
[AppiumDriver@52ce] at AppiumDriver.executeCommand (C:\Users\lakshmanans\AppData\Roaming\npm\node_modules\appium\node_modules@appium\base-driver\lib\basedriver\driver.ts:124:15)
[AppiumDriver@52ce] at processTicksAndRejections (node:internal/process/task_queues:95:5)
[AppiumDriver@52ce] at defaultBehavior (C:\Users\lakshmanans\AppData\Roaming\npm\node_modules\appium\lib\appium.js:718:16)
[AppiumDriver@52ce] at AppiumDriver.executeWrappedCommand (C:\Users\lakshmanans\AppData\Roaming\npm\node_modules\appium\lib\appium.js:828:16)
[AppiumDriver@52ce] at AppiumDriver.executeCommand (C:\Users\lakshmanans\AppData\Roaming\npm\node_modules\appium\lib\appium.js:734:17)
[AppiumDriver@52ce] at asyncHandler (C:\Users\lakshmanans\AppData\Roaming\npm\node_modules\appium\node_modules@appium\base-driver\lib\protocol\protocol.js:393:19)
[HTTP] <-- POST /session 500 57 ms - 1720
[HTTP]
[HTTP] --> POST /session/null/url
[HTTP] {"url":"https://10.17.108.155:8132"}
[AppiumDriver@52ce] Encountered internal error running command: NoSuchDriverError: A session is either terminated or not started
[AppiumDriver@52ce] at asyncHandler (C:\Users\lakshmanans\AppData\Roaming\npm\node_modules\appium\node_modules@appium\base-driver\lib\protocol\protocol.js:315:15)
[AppiumDriver@52ce] at C:\Users\lakshmanans\AppData\Roaming\npm\node_modules\appium\node_modules@appium\base-driver\lib\protocol\protocol.js:518:15
[AppiumDriver@52ce] at Layer.handle [as handle_request] (C:\Users\lakshmanans\AppData\Roaming\npm\node_modules\appium\node_modules\express\lib\router\layer.js:95:5)
[AppiumDriver@52ce] at next (C:\Users\lakshmanans\AppData\Roaming\npm\node_modules\appium\node_modules\express\lib\router\route.js:144:13)
[AppiumDriver@52ce] at Route.dispatch (C:\Users\lakshmanans\AppData\Roaming\npm\node_modules\appium\node_modules\express\lib\router\route.js:114:3)
[AppiumDriver@52ce] at Layer.handle [as handle_request] (C:\Users\lakshmanans\AppData\Roaming\npm\node_modules\appium\node_modules\express\lib\router\layer.js:95:5)
[AppiumDriver@52ce] at C:\Users\lakshmanans\AppData\Roaming\npm\node_modules\appium\node_modules\express\lib\router\index.js:284:15
[AppiumDriver@52ce] at param (C:\Users\lakshmanans\AppData\Roaming\npm\node_modules\appium\node_modules\express\lib\router\index.js:365:14)
[AppiumDriver@52ce] at param (C:\Users\lakshmanans\AppData\Roaming\npm\node_modules\appium\node_modules\express\lib\router\index.js:376:14)
[AppiumDriver@52ce] at Function.process_params (C:\Users\lakshmanans\AppData\Roaming\npm\node_modules\appium\node_modules\express\lib\router\index.js:421:3)
[AppiumDriver@52ce] at next (C:\Users\lakshmanans\AppData\Roaming\npm\node_modules\appium\node_modules\express\lib\router\index.js:280:10)
[AppiumDriver@52ce] at logger (C:\Users\lakshmanans\AppData\Roaming\npm\node_modules\appium\node_modules\morgan\index.js:144:5)
[AppiumDriver@52ce] at Layer.handle [as handle_request] (C:\Users\lakshmanans\AppData\Roaming\npm\node_modules\appium\node_modules\express\lib\router\layer.js:95:5)
[AppiumDriver@52ce] at trim_prefix (C:\Users\lakshmanans\AppData\Roaming\npm\node_modules\appium\node_modules\express\lib\router\index.js:328:13)
[AppiumDriver@52ce] at C:\Users\lakshmanans\AppData\Roaming\npm\node_modules\appium\node_modules\express\lib\router\index.js:286:9
[AppiumDriver@52ce] at Function.process_params (C:\Users\lakshmanans\AppData\Roaming\npm\node_modules\appium\node_modules\express\lib\router\index.js:346:12)
[AppiumDriver@52ce] at next (C:\Users\lakshmanans\AppData\Roaming\npm\node_modules\appium\node_modules\express\lib\router\index.js:280:10)
[AppiumDriver@52ce] at C:\Users\lakshmanans\AppData\Roaming\npm\node_modules\appium\node_modules\body-parser\lib\read.js:137:5
[AppiumDriver@52ce] at AsyncResource.runInAsyncScope (node:async_hooks:203:9)
[AppiumDriver@52ce] at invokeCallback (C:\Users\lakshmanans\AppData\Roaming\npm\node_modules\appium\node_modules\raw-body\index.js:238:16)
[AppiumDriver@52ce] at done (C:\Users\lakshmanans\AppData\Roaming\npm\node_modules\appium\node_modules\raw-body\index.js:227:7)
[AppiumDriver@52ce] at IncomingMessage.onEnd (C:\Users\lakshmanans\AppData\Roaming\npm\node_modules\appium\node_modules\raw-body\index.js:287:7)
[AppiumDriver@52ce] at IncomingMessage.emit (node:events:514:28)
[AppiumDriver@52ce] at endReadableNT (node:internal/streams/readable:1359:12)
[AppiumDriver@52ce] at processTicksAndRejections (node:internal/process/task_queues:82:21)
[HTTP] <-- POST /session/null/url 404 29 ms - 3404

Further Information

No response

Contributor guide

No contributing guide indexed for this repository

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start by reproducing the failure through the init_driver entry point and inspect the POST /session response in the supplied Appium logs. Compare the Java capabilities and the reported W3C session error; completion would require a confirmed cause and a browser session that launches successfully.

Written by the indexing model from the issue text.

Assessment

Tech stack
android, java
Domain
mobile, testing
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
20/100

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