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# ask-community
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Qwame

02/21/2023, 4:11 PM
Hi, I am running into this error when I am running a job from the UI
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Multiprocess executor: child process for step generate_forecasted_ltay_all_types unexpectedly exited with code 3221225477.dagster._core.executor.child_process_executor.ChildProcessCrashExceptionStack Trace:  File "C:\Users\.dbt-env\lib\site-packages\dagster\_core\executor\multiprocess.py", line 240, in execute    event_or_none = next(step_iter),  File "C:\Users\.dbt-env\lib\site-packages\dagster\_core\executor\multiprocess.py", line 357, in execute_step_out_of_process    for ret in execute_child_process_command(multiproc_ctx, command):,  File "C:\Users\.dbt-env\lib\site-packages\dagster\_core\executor\child_process_executor.py", line 174, in execute_child_process_command    raise ChildProcessCrashException(exit_code=process.exitcode)
Any ideas to fix this?
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Zach

02/21/2023, 4:34 PM
often this is an indication that your executor is running out of memory
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Qwame

02/21/2023, 4:36 PM
I checked task manager while running this and I saw that memory used was only around 50%. is there something else I am missing or somewhere else that I have to look?
Or how do I allocate more memory to the executor?
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Zach

02/22/2023, 2:56 AM
what executor and run launcher are you using?
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Qwame

02/22/2023, 2:57 AM
Multiprocess executor and the default run launcher
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alex

02/22/2023, 5:54 PM
the exit code is the useful bit of information here
3221225477
googling around i see
3221225477 converted to hex is 0xC0000005, which stands for STATUS_ACCESS_VIOLATION, which means you tried to access (read, write or execute) invalid memory.
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