KazuCocoa
commented
3 years ago Cannot read property 'match' of undefined was probably flutter driver did not find the line well sometimes.
I've added a few improvements recently.
The below error part came from Flutter/Dart VM. So this flutter driver can help nothing, unfortunately.
[debug] [FlutterDriver] Executing Flutter driver command 'execute'
[debug] [FlutterDriver] >>> {"command":"waitFor","finderType":"ByValueKey","keyValueType":"String","keyValueString":"qa-get_started","timeout":30000}
[debug] [FlutterDriver] <<< {"isError":false,"response":{},"type":"_extensionType","method":"ext.flutter.driver"} | previous command waitFor
[debug] [MJSONWP (df92f6de)] Responding to client with driver.execute() result: nullProbably only flutter team can take a look at.
After taking forever to get this setup, I finally have a working instance of a Flutter Driver. My issue is that every command I run results in
Responding to client with driver.execute() result: null. Here are my caps:capabilities.setCapability("automationName", "Flutter");capabilities.setCapability("noReset", "true");capabilities.setCapability("deviceName", "SM_G781U1");capabilities.setCapability("platformVersion", "11");capabilities.setCapability("platformName", "android");capabilities.setCapability("appPackage", "com.tozelabs.tvshowtime");Environment:appium. 1.20.2appium-flutter-driver 0.0.28Java TestNG Android SDK to build apks Xcode for ipas IntelliJ for running testsAppium Log: https://gist.github.com/just255/72cacb0e2548797af73d491b8f393f26
I wrote a debug output line to see if the find.byKeyValue was returning anything and got this
[pro.truongsinh.appium_flutter.finder.FlutterElement@dcbd883f -> unknown locator]I've triple-checked the key on the button and it is correct and is the only element with a keySo, I tried to add
driver.executeScript("flutter:waitForFirstFrame");to give it time to render, but that just hangs and never connects to the Dart Observatory as it tries to connect 3 times and then fails with[HTTP] Could not cache the response identified by '3733d19a-74e7-4e8d-ae82-e360d64324c5', because it has not been completed [HTTP] Does the client terminate connections too early? uncaughtException: Could not cache the response identified by '3733d19a-74e7-4e8d-ae82-e360d64324c5', because it has not been completed Error: Could not cache the response identified by '3733d19a-74e7-4e8d-ae82-e360d64324c5', because it has not been completed at WriteStream.<anonymous> (/usr/local/lib/node_modules/appium/node_modules/appium-base-driver/lib/express/idempotency.js:91:50) at Object.onceWrapper (node:events:484:28) at WriteStream.emit (node:events:378:20) at emitCloseNT (node:internal/streams/destroy:169:10) at processTicksAndRejections (node:internal/process/task_queues:80:21)or when it does connect, I getEncountered internal error running command: Error: Command not support: "flutter:waitForFirstFrame"which was answered in another issue, but still didn't work for me after changing to appium-flutter-driver 0.0.28Then, I disabled the background animations (I beleive) and added a 15 second wait, but that resulted in the same issue.
I'm at my wits end with this. Please someone help.
Side note, I also get this error randomly, when kicking off my test, which I've assumed is a timing issue between the driver and Observatory VM connecting
Encountered internal error running command: TypeError: Cannot read property 'match' of undefined [debug] [W3C] at Object.exports.processLogToGetobservatory (/usr/local/lib/node_modules/appium/node_modules/appium-flutter-driver/build/driver/lib/sessions/observatory.js:118:9) [debug] [W3C] at Object.exports.getObservatoryWsUri (/usr/local/lib/node_modules/appium/node_modules/appium-flutter-driver/lib/sessions/android.ts:34:21) [debug] [W3C] at Object.exports.startAndroidSession (/usr/local/lib/node_modules/appium/node_modules/appium-flutter-driver/lib/sessions/android.ts:25:28) [debug] [W3C] at runMicrotasks (<anonymous>) [debug] [W3C] at processTicksAndRejections (node:internal/process/task_queues:94:5) [debug] [W3C] at FlutterDriver.exports.createSession (/usr/local/lib/node_modules/appium/node_modules/appium-flutter-driver/lib/sessions/session.ts:18:47) [debug] [W3C] at AppiumDriver.createSession (/usr/local/lib/node_modules/appium/lib/appium.js:371:35)