Check the environment setup as shown in the following table.
| Questions | Actions to Take |
|---|---|
| Are you using a third-party simulator? |
Ensure the path to the simulator executable is specified in the system search path. When using the Vivado simulator, you do not need to specify a search path. Ensure that you have compiled the simulation libraries as discussed in Simulating IP Cores. |
| Are you running Linux? | Ensure that your setup files (for example .cshrc or .bashrc) do not
have a change directory command. When C/RTL co-simulation starts, it
spawns a new shell process. If there is a cd command in your setup files, it causes the shell to run
in a different location and eventually C/RTL co-simulation
fails. |