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"The session handle is invalid or refers to a session that is not from a supported IVI class driver" Error message

Hello , 

 

We developed a new ivi class driver and everything works well,and we have the error message below

 

Error, An error occurred calling 'RunStep' in 'ISubstep' of 'zNI TestStand Ivi Step Types' An error occurred while executing the step.

Component Works IVI Control Error: The IVI operation failed for logical name 'ElecLoad'.

Details: The session handle is invalid or refers to a session that is not from a supported IVI class driver. () Source: TSIviStepTypes [Error Code: -31603, User-defined error code.]

 

The strange thing is that the functions Close and init with options in ivi driver works very well

So when we send anthers function reset or Set/Get/Check Attributes , We receive the error message above

 

 

what's the problem with the functions reset, Set/Get/Check Attributes, etc?
With this functions we can't even access the generic driver code because the error shows up before we can get to the code in debbigging mode. Any ideas?.

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Hello,

we have the same error with ametek XG power supply. Did you find a solution for that problem?

 

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