Solver Kit Issue

[Tufailmabood]

I am trying to learn the STKO and for that purpose i am studying the documentation as well as the seasions online, however i am facing this error when i try to define the random variables in definitions. What could be the issue?

Error:
Traceback (most recent call last):
File "C:/Program Files/STKO\external_solvers\opensees\definitions\utils\tester\TesterDistribution.py", line 501, in onTestClicked
self.tester.run()
File "C:/Program Files/STKO\external_solvers\opensees\definitions\utils\tester\TesterDistribution.py", line 185, in run
for item in tu.executeAsync([opensees_cmd, temp_script_file], temp_dir):
File "C:/Program Files/STKO\external_solvers\opensees\utils\Gui\TesterUtils.py", line 31, in executeAsync
creationflags=0x08000000, cwd=working_dir)
File "subprocess.py", line 709, in __init__
File "subprocess.py", line 997, in _execute_child
OSError: [WinError 193] %1 is not a valid Win32 application

[STKO Team]

Install OpenSees first