The ADE-L session error occurs when the “Generate SPECTRE Netlist” option is selected in the Calibre view setup window. Moving to Calibre v2023.2 or later will solve this issue.
This error occurs when the “Generate SPECTRE Netlist” option is selected in the Calibre view setup window. By enabling this option, a SPECTRE netlist is generated from the Calibre View netlist using the Cadence Analog Design Environment (ADE).
Before Calibre v2023.2, this option was invoking Virtuoso ADE-L to generate the SPECTRE netlist from the Calibre view. However, starting from Virtuoso IC6.1.8, ADE-L is no longer supported. This version and later releases have transitioned to using ADE Explorer and ADE Assembler for design and simulation tasks, which is the root cause of this error.
Starting from Calibre v2023.2, this issue has been resolved. The SPECTRE netlist file is now generated without invoking the ADE-L window, ensuring compatibility with all Virtuoso versions.