Solution
This error occurs when the number of temporary report files, named TempReport_xxxxx.txt, reaches the allowable limit. These temporary files are generated each time NI TestStand is executed with report generation enabled. By default, these files are supposed to be deleted automatically after closing NI TestStand. However, if they accumulate, it can lead to this error.
To resolve this issue, you can use one of the following workarounds:
- Manually delete all the temp reports TempReport_xxxxx.txt located at AppData\Local\Temp\TestStand
- Programmatically delete the temp reports by either writing a code module in sequence callback or creating a simple plugin.