courses:system_design:vhdl_language_and_syntax:vhdl_structural_elements:entity_and_architecture [VHDL-Online]
![Error: output or inout port "S" must be connected to a structural net expression. Please help. Thank you :)! https://pastebin.com/4GsXbYup . Here's the bits of code that are directly related to the Error: output or inout port "S" must be connected to a structural net expression. Please help. Thank you :)! https://pastebin.com/4GsXbYup . Here's the bits of code that are directly related to the](https://i.redd.it/x2cizk2ymp241.png)
Error: output or inout port "S" must be connected to a structural net expression. Please help. Thank you :)! https://pastebin.com/4GsXbYup . Here's the bits of code that are directly related to the
![signal - Xilinx and VHDL · Why is this INOUT port undefined? - Electrical Engineering Stack Exchange signal - Xilinx and VHDL · Why is this INOUT port undefined? - Electrical Engineering Stack Exchange](https://i.stack.imgur.com/Er8mL.png)
signal - Xilinx and VHDL · Why is this INOUT port undefined? - Electrical Engineering Stack Exchange
![fpga - Handling a multiplexed bidirectional data bus in VHDL - Electrical Engineering Stack Exchange fpga - Handling a multiplexed bidirectional data bus in VHDL - Electrical Engineering Stack Exchange](https://i.stack.imgur.com/bNp6c.png)
fpga - Handling a multiplexed bidirectional data bus in VHDL - Electrical Engineering Stack Exchange
![fpga - Handling a multiplexed bidirectional data bus in VHDL - Electrical Engineering Stack Exchange fpga - Handling a multiplexed bidirectional data bus in VHDL - Electrical Engineering Stack Exchange](https://i.stack.imgur.com/qwUUC.png)