Troubleshooting¶

• What if I get warnings about SSL while my code is running?
• These types of warnings indicate that you might be using an unsupported version of Python and need additional Python libraries. Some details are provided here.
• How do I check if my local CPLEX® Optimizer is used or not?
• DOcplex examples issue warnings that state whether a CPLEX Optimizer wrapper is present or not. For example, CPLEX wrapper is present, version is 12.6.3.0, located at: C:\CPLEX_Studio1263.
• If an invalid version of CPLEX Optimizer is detected (for example V12.6.1), DOcplex raises an error that indicates the cause.
• If no CPLEX Optimizer version is detected, then DOcplex examples raise the message CPLEX wrapper is not available.
• What if I don’t have pip?
• The lack of pip indicates that you are using an unsupported version of Python since pip is delivered as a standard package with versions 2.7.9+, 3.4, and 3.5.