When running ColdFusion MX 6.1 for WebLogic on Unix platforms, charting must be configured before the CFCHART tag can be used. Errors will appear when using CFCHART if ColdFusion has not been properly configured. For more information, read the TechNote below.
ColdFusion MX 6.1 for BEA WebLogic (Unix only): Configuring CFCHART Functionality