Are you trying to open a project with the xml extension in BAS? Probably your project is damaged, you did not edit it manually using text editors? Try to restore it from backups located here:
C:\Users\User\AppData\Roaming\BrowserAutomationStudio\projectbackups
@BAS-Viet-Nam solved brother, thanks.. i need dynamic tools for repeat thread without manual setting directory root folder. thanks for help. very thanks π
@mford7998a
Please attach the project in which this error occurs.
Try disabling "Windows Defender" and Windows firewall and other possible antiviruses that you have.