Sometimes when starting a test using Pick a browser to open a new Client Test Runner, the client test runner reports an error "step_execution_generator' of undefined" and does not run the test. Running the test again will succeed.

Steps to Reproduce


  1. Create an ATF test with a UI-based step.

  2. Close all Client Test Runner windows.

  3. Run the test.

    The test fails with error "Step execution failed with error: Cannot read property 'step_execution_generator' of undefined". Running the test again will succeed.




Open the Client Test Runner (available as a module in Automated Test Framework application menu) before running a test.

Related Problem: PRB1243954

Seen In

There is no data to report.

Intended Fix Version


Fixed In

Jakarta Patch 8
Kingston Patch 3

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Associated Community Threads

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Article Information

Last Updated:2018-04-23 23:40:12