Displaying an error as "app " option required to reinstall while the appium program

Question

I am getting exception while running appium program. Please ask if extra information needed.

TLDR:

original error: 'app' option is required for reinstall

log4j:WARN No appenders could be found for logger (org.apache.http.client.protocol.RequestAddCookies). log4j:WARN Please initialize the log4j system properly. log4j:WARN See http://logging.apache.org/log4j/1.2/faq.html#noconfig for more info. Exception in thread "main" org.openqa.selenium.WebDriverException: An unknown server-side error occurred while processing the command. Original error: 'app' option is required for reinstall Build info: version: '3.8.1', revision: '6e95a6684b', time: '2017-12-01T19:05:14.666Z' System info: os.name: 'Windows 7', os.arch: 'amd64', os.version: '6.1', java.version: '1.8.0_151' Driver info: driver.version: AndroidDriver remote stacktrace: UnknownError: An unknown server-side error occurred while processing the command. Original error: 'app' option is required for reinstall at getResponseForW3CError (C:\Users\preethi.g\AppData\Local\appium-desktop\app-1.10.0\resources\app\node_modules\appium-base-driver\lib\protocol\errors.js:826:9) at asyncHandler (C:\Users\preethi.g\AppData\Local\appium-desktop\app-1.10.0\resources\app\node_modules\appium-base-driver\lib\protocol\protocol.js:447:37) at process._tickCallback (internal/process/next_tick.js:68:7) at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source) at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source) at java.lang.reflect.Constructor.newInstance(Unknown Source) at org.openqa.selenium.remote.W3CHandshakeResponse.lambda$new$0(W3CHandshakeResponse.java:57) at org.openqa.selenium.remote.W3CHandshakeResponse.lambda$getResponseFunction$2(W3CHandshakeResponse.java:104) at org.openqa.selenium.remote.ProtocolHandshake.lambda$createSession$0(ProtocolHandshake.java:123) at java.util.stream.ReferencePipeline$3$1.accept(Unknown Source) at java.util.Spliterators$ArraySpliterator.tryAdvance(Unknown Source) at java.util.stream.ReferencePipeline.forEachWithCancel(Unknown Source) at java.util.stream.AbstractPipeline.copyIntoWithCancel(Unknown Source) at java.util.stream.AbstractPipeline.copyInto(Unknown Source) at java.util.stream.AbstractPipeline.wrapAndCopyInto(Unknown Source) at java.util.stream.FindOps$FindOp.evaluateSequential(Unknown Source) at java.util.stream.AbstractPipeline.evaluate(Unknown Source) at java.util.stream.ReferencePipeline.findFirst(Unknown Source) at org.openqa.selenium.remote.ProtocolHandshake.createSession(ProtocolHandshake.java:126) at org.openqa.selenium.remote.ProtocolHandshake.createSession(ProtocolHandshake.java:73) at org.openqa.selenium.remote.HttpCommandExecutor.execute(HttpCommandExecutor.java:142) at io.appium.java_client.remote.AppiumCommandExecutor.execute(AppiumCommandExecutor.java:89) at org.openqa.selenium.remote.RemoteWebDriver.execute(RemoteWebDriver.java:601) at io.appium.java_client.DefaultGenericMobileDriver.execute(DefaultGenericMobileDriver.java:42) at io.appium.java_client.AppiumDriver.execute(AppiumDriver.java:1) at io.appium.java_client.android.AndroidDriver.execute(AndroidDriver.java:1) at org.openqa.selenium.remote.RemoteWebDriver.startSession(RemoteWebDriver.java:219) at org.openqa.selenium.remote.RemoteWebDriver.(RemoteWebDriver.java:142) at io.appium.java_client.DefaultGenericMobileDriver.(DefaultGenericMobileDriver.java:38) at io.appium.java_client.AppiumDriver.(AppiumDriver.java:83) at io.appium.java_client.AppiumDriver.(AppiumDriver.java:93) at io.appium.java_client.android.AndroidDriver.(AndroidDriver.java:72) at Mobileapp1.Apptesting.main(Apptesting.java:24)

Answer 1

It seems like you did not add "app" capability in your DesiredCapability and you are using noReset capability. You can add "app" capability and give .ipa or .apk file location.

DesiredCapabilities caps = new DesiredCapabilities();
caps.setCapability(MobileCapabilityType.APP, "path to ipa/apk file" );
//others capabilities