"[ WARN ] Keyword 'Capture Page Screenshot' could not be run on failure: NoSuchWindowException: Message: Unable to get browser" was returned only on IE

[Xianle Yan]

I tried to run Selenium case on IE, it failed. I used the same on  EDGE/Firefox/Chrome, it worked well.

Could you please help me fixing the issue, and tell me what's wrong with my script.  Appreciate for your help.

Version:
     Python: 3.6.5
     Robotframework: 3.0.2
     robotframework-seleniumlibrary: 3.1.1
     selenium: 3.11.0
     OS: Win10 x64
     IE: 11.309.16299.0
     IEDriverServer:  3.9.0.0(32-bit)
   

To make it's easier to read, here are the simplest case:

*** Settings ***
Documentation    Suite description
Library    SeleniumLibrary

*** Test Cases ***
demo
    [Tags]    demo
    Open Browser    http://google.ca    ie
    input text     xpath://*[@id="lst-ib"]    canada
    press key     xpath://*[@id="lst-ib"]    \\13
    [teardown]    close all browsers

It failed with below message:
Sslvpn.Demo :: Suite description                                             
==============================================================================
demo                                                                  [ WARN ] Keyword 'Capture Page Screenshot' could not be run on failure: NoSuchWindowException: Message: Unable to get browser

screenshot from log.html:

[Hélio Guilherme]

The test case you show, worked fine in my system (same versions, except my Python 2.7.13).

But the output you show is different at "Input Text   ${LOGIN_USERNAME_TEXT}   ${GUI_USERNAME}", and your locator is CSS and in the example XPATH.

It is not clear why it failed, but it is frequent that when failures occur, the window is not there at the moment of screen capture.

Try to run test with loglevel TRACE.

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