Device farm mshop automation : I am getting error related to chrome browser when I try to perform after webview switch

Hello, thank you for sharing your query. I believe you are facing errors in performing webview switch in chrome driver. You may try the below workaround which helps in installing the compatible Chrome Driver version to the Chrome Browser on the device :

1. First, add the attached file 'chromedriver-new-wrapper.txt ' to the root of your test package zip file.
2. Then, add the following code to your test spec file’s install phase in order to fix the $DEVICEFARM_CHROMEDRIVER_EXECUTABLE:
      - chrome_web_version=$(adb shell dumpsys package com.android.chrome    | grep versionName | cut -d"=" -f2|sort |tail -n 1)
      - >-
        if [ $(echo $chrome_web_version | cut -d"." -f 1) -ge 70 ];
        then
          proper_chromedriver_version=$(curl -L https://chromedriver.storage.googleapis.com/LATEST_RELEASE_$(python    -c "import sys;print(\".\".join(sys.argv[-1].strip().split(\".\")[:-1]))" $chrome_web_version) 2> /dev/null )
          curl -L "https://chromedriver.storage.googleapis.com/$proper_chromedriver_version/chromedriver_linux64.zip   " -o /tmp/chromedriver_linux64_new.zip 2> /dev/null;
          unzip /tmp/chromedriver_linux64_new.zip -d /tmp >/dev/null;
          mv /tmp/chromedriver $(echo "$DEVICEFARM_CHROMEDRIVER_EXECUTABLE"-orig);
          rm -rf $DEVICEFARM_CHROMEDRIVER_EXECUTABLE;
          cp $DEVICEFARM_TEST_PACKAGE_PATH/chromedriver-new-wrapper* $DEVICEFARM_CHROMEDRIVER_EXECUTABLE;
          chmod +x $DEVICEFARM_CHROMEDRIVER_EXECUTABLE;
          $DEVICEFARM_CHROMEDRIVER_EXECUTABLE -v;
        else
          echo "Defaulting to devicefarm chromedriver version";
        fi;

Content of 'chromedriver-new-wrapper.txt ' (create the file with below content) :

#!/bin/bash
# Wrapper for chromedriver

sighandler() {
    pkill chromedriver-orig
    exit
}

trap sighandler SIGINT SIGTERM

DIR=$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )
LOG_FILE="/tmp/chromedriver_wrapper.log"
WRAPPER=$( basename "${BASH_SOURCE[0]}" )
POSTFIX="-orig"

if [ ! -f $LOG_FILE ]
then
  touch $LOG_FILE
  chmod 777 $LOG_FILE
fi

echo $DIR/${WRAPPER}${POSTFIX} $@ >> $LOG_FILE 

# Launch real chromedriver and parser on background so script could handle the signals
{
    $DIR/${WRAPPER}${POSTFIX} $@ 2>&1 | \
    while read line ; do
        echo $line
        # echo $line >> $LOG_FILE 
        port=$(echo "$line" | grep -Po '.*Received adb response:\K.*' | tr -d ' ')
        if [ -n "$port" ] && [ "$chrome_devtools_remote_port" != '' ];
        then
                echo "[CHROMEDRIVER-WRAPPER] Will Tunnel $port to $chrome_devtools_remote_port for $udid">> $LOG_FILE ;
                adb -s $udid forward tcp:$port $chrome_devtools_remote_port; # Uses ADB wrapper for forwarding
                chrome_devtools_remote_port="";
        else

            port=$(echo "$line" | grep -Po 'host-serial:.*:forward:tcp:\K.*?(?=;)')

            if [ -n "$port" ];
            then
                if [ "$port" -gt 1024 ];
                then
                    echo "[CHROMEDRIVER-WRAPPER] Will Tunnel $port">> $LOG_FILE ;
                    ip="$(ip -4 addr show eth0 | grep -Po '(?<=inet\s)\d+(\.\d+){3}')";
                    echo curl -H "Content-Type: application/json" -X POST -d '{"ip_address":"'"$ip"'","host_port":"'"$port"'","harness_port":"'"$port"'"}' http://localhost:31007/tunnel >> $LOG_FILE ;
                    curl -H "Content-Type: application/json" -X POST -d '{"ip_address":"'"$ip"'","host_port":"'"$port"'","harness_port":"'"$port"'"}' http://localhost:31007/tunnel >> $LOG_FILE 2>&1 ;
                else
                    chrome_devtools_remote_port=$(echo "$line" | grep -Po 'host-serial:.*;\K.*');
                    udid=$(echo "$line" | grep -Po 'host-serial:\K.*?(?=:)');
                    echo "[CHROMEDRIVER-WRAPPER] Preparing to Tunnel $chrome_devtools_remote_port for $udid">> $LOG_FILE ;
                fi;
            else
                port=$(echo "$line" |grep 'port'| grep -oP '\s*\d+\s*$'| grep -oP '\d+');

                if [ -n "$port" ] && [ "$port" -gt 1024 ];
                then
                    echo "[CHROMEDRIVER-WRAPPER] Will Tunnel $port">> $LOG_FILE ;
                    ip="$(ip -4 addr show eth0 | grep -Po '(?<=inet\s)\d+(\.\d+){3}')";
                    echo curl -H "Content-Type: application/json" -X POST -d '{"ip_address":"'"$ip"'","host_port":"'"$port"'","harness_port":"'"$port"'"}' http://localhost:31007/tunnel >> $LOG_FILE ;
                    curl -H "Content-Type: application/json" -X POST -d '{"ip_address":"'"$ip"'","host_port":"'"$port"'","harness_port":"'"$port"'"}' http://localhost:31007/tunnel >> $LOG_FILE 2>&1 ;
                fi
            fi
        fi
    done
} &

pid=$!
wait $pid

You need to define the $DEVICEFARM_CHROMEDRIVER_EXECUTABLE environment variable which is the the version of the Chrome browser.

Having said that, in case you face further challenges, please feel free to open a support case with AWS using the following link.