Error 8 when trying to run a project.

[KSedore]

No, they are saving it directly to the C:/ drive and then converted it into a excel file in excel. Unfortunately, the computer won't allow me to attach the raw data saved to the C:/ drive.

[altenbach]

You did not attach the subVIs, but your program only appends (writes!) to a tab delimited spreadsheet file, never reads anything.

So how does the user entering values into excel mesh with that?

What else happened before it stopped working. Did you e.g. upgrade the OS? Newer versions are more restrictive in allowing writing to system areas. Why do you possibly write to files in user.lib? That's not a place for data!!! 

[KSedore]

Are the attached my subVIs?

The raw data collected from the conductivity probe is automatically saved to the C:\ drive on the computer. The students will then convert the raw data on the C:\ drive to an excel file where they can analyze their data.

[altenbach]

Does it work if you run LabVIEW as administrator? (See also)

[KSedore]

Nothing else happens when the error message is given. We have installed Windows 7 on a new computer so the project is still running on the older OS.

On the Windows 7, my data acquisition board from MCC is reading in InstaCal and is being recognized by the code.

When I installed the LabVIEW 2017 software and installed our VIs, the user.lib was the path that was given to store these in. I tried storing them in another location but the LabVIEW would not read the projects. All of our other experiments that use LabVIEW from running our data acquisition boards are stored in this location.

[KSedore]

No, it does not run when I'm the administrator and I have full permissions on this computer.

[KSedore]

Sorry that should be LabVIEW 2014.

[Ben]

Either you do not have permission to write to the C: drive or the file that is there is NOT a csv file but rather an Excel file.

Ben 

[altenbach · Accepted solution]

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@KSedore wrote:

No, it does not run when I'm the administrator and I have full permissions on this computer.

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That still does not give LabVIEW these permissions. With LabVIEW closed, you need to right-click the LabVIEW icon and select "run as administrator" did you try that?

[altenbach]

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@KSedore wrote:

No, they are saving it directly to the C:/ drive and then converted it into a excel file in excel. Unfortunately, the computer won't allow me to attach the raw data saved to the C:/ drive.

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Nobody should ever be writing to the root folder of a drive. Is that what you are doing?