You receive this error while configuring Truancy Call to work with Sims. This means Truancy Call has been unable to find the connect.ini file
1. Find the connect.ini - this is usually in C:\Program Files (x86)\Sims\Sims.net
2. Copy the connect.ini to the location you are using in Truancy Call as the 'Path to Sims Server' e.g. S:\Sims
3. Try configuring Truancy Call again
If you still receive the error, make sure the connect.ini file you used is the correct one and contains the correct details for the Sims server.