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J'ai récemment repris un projet qui utilise Appium pour effectuer des tests mobiles automatisés. J'ai quelques scripts python qui sont supposés être exécutés avec Appium mais quand j'essaie de les exécuter, je cours dans "[INSTALL_FAILED_VERSION_DOWNGRADE]". Après beaucoup de recherches sur le sujet, j'ai inclus que c'est un problème lié à Android et à sa version APK. Cependant, je suis nouveau sur Android, ce qui rend difficile de comprendre à la fois ce que font Appium et Android. Je penche plus vers un problème quand il essaie d'installer l'application sur l'appareil, mais je pense que j'ai abordé les étapes de dépannage. Par exemple, assurez-vous d'avoir la dernière version de l'application, de désinstaller l'application, de réinstaller une ancienne version de l'application et enfin de vérifier les mises à jour.Echec [INSTALL_FAILED_VERSION_DOWNGRADE]
script Python retraçage:
Traceback (most recent call last):
File "main.py", line 310, in <module>
launch()
File "main.py", line 26, in launch
driver = webdriver.Remote('http://localhost:4723/wd/hub', desired_caps)
File "C:\Python\lib\site-packages\appium\webdriver\webdriver.py", line 36, in __init__
super(WebDriver, self).__init__(command_executor, desired_capabilities, browser_profile, proxy, keep_alive)
File "C:\Python\lib\site-packages\selenium\webdriver\remote\webdriver.py", line 151, in __init__
self.start_session(desired_capabilities, browser_profile)
File "C:\Python\lib\site-packages\selenium\webdriver\remote\webdriver.py", line 240, in start_session
response = self.execute(Command.NEW_SESSION, parameters)
File "C:\Python\lib\site-packages\selenium\webdriver\remote\webdriver.py", line 308, in execute
self.error_handler.check_response(response)
File "C:\Python\lib\site-packages\selenium\webdriver\remote\errorhandler.py", line 194, in check_response
raise exception_class(message, screen, stacktrace)
selenium.common.exceptions.WebDriverException: Message: A new session could not be created. (Original error: Command failed: C:\AndroidSDK\platform-tools\adb.exe -s GCNPCX031761JAV install "C:\Appium\node_modules\appium\build\settings_apk\settings_apk-debug.apk"
Failed to install C:\Appium\node_modules\appium\build\settings_apk\settings_apk-debug.apk: Failure [INSTALL_FAILED_VERSION_DOWNGRADE]
)
console Appium:
error: Failed to start an Appium session, err was: Error: Command failed: C:\AndroidSDK\platform-tools\adb.exe -s GCNPCX031761JAV install "C:\Appium\node_modules\appium\build\settings_apk\settings_apk-debug.apk"
Failed to install C:\Appium\node_modules\appium\build\settings_apk\settings_apk-debug.apk: Failure [INSTALL_FAILED_VERSION_DOWNGRADE]
info: [debug] Error: Command failed: C:\AndroidSDK\platform-tools\adb.exe -s GCNPCX031761JAV install "C:\Appium\node_modules\appium\build\settings_apk\settings_apk-debug.apk"
Failed to install C:\Appium\node_modules\appium\build\settings_apk\settings_apk-debug.apk: Failure [INSTALL_FAILED_VERSION_DOWNGRADE]
at ChildProcess.exithandler (child_process.js:204:12)
at emitTwo (events.js:106:13)
at ChildProcess.emit (events.js:191:7)
at maybeClose (internal/child_process.js:891:16)
at Process.ChildProcess._handle.onexit (internal/child_process.js:226:5)
info: [debug] Responding to client with error: {"status":33,"value":{"message":"A new session could not be created. (Original error: Command failed: C:\\AndroidSDK\\platform-tools\\adb.exe -s GCNPCX031761JAV install \"C:\\Appium\\node_modules\\appium\\build\\settings_apk\\settings_apk-debug.apk\"\nFailed to install C:\\Appium\\node_modules\\appium\\build\\settings_apk\\settings_apk-debug.apk: Failure [INSTALL_FAILED_VERSION_DOWNGRADE]\r\n)","killed":false,"code":1,"signal":null,"cmd":"C:\\AndroidSDK\\platform-tools\\adb.exe -s GCNPCX031761JAV install \"C:\\Appium\\node_modules\\appium\\build\\settings_apk\\settings_apk-debug.apk\"","origValue":"Command failed: C:\\AndroidSDK\\platform-tools\\adb.exe -s GCNPCX031761JAV install \"C:\\Appium\\node_modules\\appium\\build\\settings_apk\\settings_apk-debug.apk\"\nFailed to install
C:\\Appium\\node_modules\\appium\\build\\settings_apk\\settings_apk-debug.apk: Failure [INSTALL_FAILED_VERSION_DOWNGRADE]\r\n"},"sessionId":null}
MISE À JOUR: Je redémarré mon ordinateur et il a couru à nouveau et il est débarrassé de la [INSTALL_FAILED_VERSION_DOWNGRADE] mais maintenant je suis obtenir
Traceback (most recent call last):
File "main.py", line 310, in <module>
launch()
File "main.py", line 26, in launch
driver = webdriver.Remote('http://localhost:4723/wd/hub', desired_caps)
File "C:\Python\lib\site-packages\appium\webdriver\webdriver.py", line 36, in __init__
super(WebDriver, self).__init__(command_executor, desired_capabilities, browser_profile, proxy, keep_alive)
File "C:\Python\lib\site-packages\selenium\webdriver\remote\webdriver.py", line 151, in __init__
self.start_session(desired_capabilities, browser_profile)
File "C:\Python\lib\site-packages\selenium\webdriver\remote\webdriver.py", line 240, in start_session
response = self.execute(Command.NEW_SESSION, parameters)
File "C:\Python\lib\site-packages\selenium\webdriver\remote\webdriver.py", line 308, in execute
self.error_handler.check_response(response)
File "C:\Python\lib\site-packages\selenium\webdriver\remote\errorhandler.py", line 194, in check_response
raise exception_class(message, screen, stacktrace)
selenium.common.exceptions.WebDriverException: Message: An unknown server-side error occurred while processing the command. Original error: Error occured while starting App. Original error: Error executing adbExec. Original error: 'Command 'C\:\\AndroidSDK\\platform-tools\\adb.exe -P 5037 -s GCNPCX031761JAV shell am start -W -n com.rockfordfosgate.perfecttune/com.rockfordfosgate.perfecttune.activity.HomeActivity -S' exited with code 1'; Stderr: 'java.lang.SecurityException: Permission Denial: starting Intent { flg=0x10000000 cmp=com.rockfordfosgate.perfecttune/.activity.HomeActivity } from null (pid=10837, uid=2000) not exported from uid 10127
at android.os.Parcel.readException(Parcel.java:1683)
at android.os.Parcel.readException(Parcel.java:1636)
at android.app.ActivityManagerProxy.startActivityAndWait(ActivityManagerNative.java:3352)
at com.android.commands.am.Am.runStart(Am.java:630)
at com.android.commands.am.Am.onRun(Am.java:388)
at com.android.internal.os.BaseCommand.run(BaseCommand.java:51)
at com.android.commands.am.Am.main(Am.java:121)
at com.android.internal.os.RuntimeInit.nativeFinishInit(Native Method)
at com.android.internal.os.RuntimeInit.main(RuntimeInit.java:294)'; Code: '1'
Whic h semble être un problème de permissions avec ADB.