Could not load file or assembly

PyHamilton
1

I have a failure to initialize with the following error. Any suggestions?

Process Process-1:
Traceback (most recent call last):
File “C:\Users\labadmin\AppData\Local\Programs\Python\Python39\lib\multiprocessing\process.py”, line 315, in _bootstrap
self.run()
File “C:\Users\labadmin\AppData\Local\Programs\Python\Python39\lib\multiprocessing\process.py”, line 108, in run
self._target(*self._args, **self._kwargs)
File “C:\Users\labadmin\AppData\Local\Programs\Python\Python39\lib\site-packages\pyhamilton\interface.py”, line 205, in run_hamilton_process
clr.AddReference(os.path.join(OEM_STAR_PATH, ‘RunHSLExecutor’))
System.BadImageFormatException: Could not load file or assembly ‘file:///C:\Users\labadmin\AppData\Local\Programs\Python\Python39\lib\site-packages\pyhamilton\star-oem\RunHSLExecutor.dll’ or one of its dependencies. An attempt was made to load a program with an incorrect format.
File name: ‘file:///C:\Users\labadmin\AppData\Local\Programs\Python\Python39\lib\site-packages\pyhamilton\star-oem\RunHSLExecutor.dll’
at System.Reflection.RuntimeAssembly._nLoad(AssemblyName fileName, String codeBase, Evidence assemblySecurity, RuntimeAssembly locationHint, StackCrawlMark& stackMark, IntPtr pPrivHostBinder, Boolean throwOnFileNotFound, Boolean forIntrospection, Boolean suppressSecurityChecks)
at System.Reflection.RuntimeAssembly.InternalLoadAssemblyName(AssemblyName assemblyRef, Evidence assemblySecurity, RuntimeAssembly reqAssembly, StackCrawlMark& stackMark, IntPtr pPrivHostBinder, Boolean throwOnFileNotFound, Boolean forIntrospection, Boolean suppressSecurityChecks)
at System.Reflection.RuntimeAssembly.InternalLoadFrom(String assemblyFile, Evidence securityEvidence, Byte hashValue, AssemblyHashAlgorithm hashAlgorithm, Boolean forIntrospection, Boolean suppressSecurityChecks, StackCrawlMark& stackMark)
at System.Reflection.Assembly.LoadFrom(String assemblyFile)
at Python.Runtime.AssemblyManager.LoadAssemblyPath(String name)
at Python.Runtime.CLRModule.AddReference(String name)

2

Make sure to use 32-bit Python

3

That got it. I now am simulating your intro script, which is to say that when I run it in python it opens up the deck and when I hit go in run control it pipettes. Is it expected behavior that I should have to start the method in run control rather than it taking off automatically when the python script is run?

1 Like
4

In simulation mode (which is more accurately run control mode) yes, the script has to be started manually. If you run with simulation mode off then the script automatically starts.