Teststand Error information

[JAC_HU]

attached is the error information,

When the Sequence Editor tries to load one of our .NET assembly modules to be referenced by a step, it pops up a ".NET Error" dialog with the following message:

current I used teststand 3.1 but if install teststand 4.2 it will ok

how can I do to fix this issue

[~jiggawax~]

Make sure you have the search directories the same for both versions. 

The other thing I'm wondering is if that particular assembly gets installed with 4.2 because 4.2 was built on .NET.  TS 3.1 was built in CVI if I remember correctly.

Probably that your search directories can't find it though.  Can you look at the step and see if it shows up good (i.e. the .NET step can see the assembly just fine)?

[JAC_HU]

thank you jigg
I have set the search directories include both two version but still fail

If it is casue by .net framwork version that framwrok 2.0 support TS3.1and framwrok 3.5 suport TS4.2  

[Jeff.A.]

It sounds like you don't have the 2.0 .NET Framework installed on your machine, but you have a step that is trying to call into one of the .NET 2.0 assemblies.  Try installing .NET 2.0 (this gets installed with newer TS versions which is why you don't see the problem after installing TS 4.2)