relevant appium log entries

appium.log

[Chromedriver] Found Chrome bundle 'com.android.chrome' version '74.0.3729'
[Chromedriver] No known Chromedriver available to automate Chrome version '74.0.3729'.
[Chromedriver] Using Chromedriver version '74.0', which has not been tested with Appium.
[Chromedriver] Set chromedriver binary as: C:/Users/boris/.m2/repository/webdriver/chromedriver/win32/74.0.3729.6/chromedriver.exe
[Chromedriver] Killing any old chromedrivers, running: wmic process where "commandline like '%chromedriver.exe%--port=8000%'" delete
[Chromedriver] Successfully cleaned up old chromedrivers
[Chromedriver] Cleaning any old adb forwarded port socket connections
[ADB] List forwarding ports
[ADB] Running 'C:\Users\boris\AppData\Local\Android\Sdk\platform-tools\adb.exe -P 5037 -s de61d149 forward --list'
[Chromedriver] Spawning chromedriver with: C:/Users/boris/.m2/repository/webdriver/chromedriver/win32/74.0.3729.6/chromedriver.exe --url-base=wd/hub --port=8000 --adb-port=5037 --verbose
[Chromedriver] Chromedriver version: '74.0.3729.6'
[WD Proxy] Matched '/status' to command name 'getStatus'
[WD Proxy] Proxying [GET /status] to [GET http://127.0.0.1:8000/wd/hub/status] with no body
[WD Proxy] Got response with status 200: "{\"sessionId\":\"\",\"status\":0,\"value\":{\"build\":{\"version\":\"74.0.3729.6 (255758eccf3d244491b8a1317aa76e1ce10d57e9-refs/branch-heads/3729@{#29})\"},\"message\":\"ChromeDriver ready for new sessions.\",\"os\":{\"arch\":\"x86_64\",\"name\":\"Windows NT\",\"version\":\"10.0.18362\"},\"ready\":true}}"
[WD Proxy] Determined that the downstream protocol for proxy is MJSONWP
[WD Proxy] Matched '/session' to command name 'createSession'
[WD Proxy] Proxying [POST /session] to [POST http://127.0.0.1:8000/wd/hub/session] with body: {"desiredCapabilities":{"chromeOptions":{"androidPackage":"com.android.chrome","androidDeviceSerial":"de61d149"},"loggingPrefs":{"browser":"ALL"}}}
[WD Proxy] Got response with status 200: {"sessionId":"b5e16235ec73f698ba9dbc1bbfb23004","status":13,"value":{"message":"unknown error: Failed to forward ports to device de61d149: . unknown error: The adb command failed. Extra response: <>.\n  (Driver info: chromedriver=74.0.3729.6 (255758eccf3d244491b8a1317aa76e1ce10d57e9-refs/branch-heads/3729@{#29}),platform=Windows NT 10.0.18362 x86_64)"}}
[WD Proxy] Got an unexpected response: {"sessionId":"b5e16235ec73f698ba9dbc1bbfb23004","status":13,"value":{"message":"unknown error: Failed to forward ports to device de61d149: . unknown error: The adb command failed. Extra response: <>.\n  (Driver info: chromedriver=74.0.3729.6 (255758eccf3d244491b8a1317aa76e1ce10d57e9-refs/branch-h...
[MJSONWP] Matched JSONWP error code 13 to UnknownError
[Chromedriver] Error: Failed to start Chromedriver session: An unknown server-side error occurred while processing the command. Original error: unknown error: Failed to forward ports to device de61d149: . unknown error: The adb command failed. Extra response: <>.
[Chromedriver]   (Driver info: chromedriver=74.0.3729.6 (255758eccf3d244491b8a1317aa76e1ce10d57e9-refs/branch-heads/3729@{#29}),platform=Windows NT 10.0.18362 x86_64)
[Chromedriver]     at Object.wrappedLogger.errorAndThrow (C:\Users\boris\AppData\Local\Programs\Appium\resources\app\node_modules\appium\node_modules\appium-support\lib\logging.js:78:13)
[Chromedriver]     at errorAndThrow (C:\Users\boris\AppData\Local\Programs\Appium\resources\app\node_modules\appium\node_modules\appium-chromedriver\lib\chromedriver.js:493:13)
[WD Proxy] Matched '/session' to command name 'createSession'
[WD Proxy] Proxying [POST /session] to [POST http://127.0.0.1:8000/wd/hub/session] with body: {"desiredCapabilities":{"chromeOptions":{"androidPackage":"com.android.chrome","androidDeviceSerial":"de61d149"},"loggingPrefs":{"browser":"ALL"}}}
[WD Proxy] Got response with status 200: {"sessionId":"f9dbbb30d255b68bcb2de2cc23818327","status":13,"value":{"message":"unknown error: Failed to forward ports to device de61d149: . unknown error: The adb command failed. Extra response: <>.\n  (Driver info: chromedriver=74.0.3729.6 (255758eccf3d244491b8a1317aa76e1ce10d57e9-refs/branch-heads/3729@{#29}),platform=Windows NT 10.0.18362 x86_64)"}}