I follow [https://docs.easyeda.com/en/Simulation/Spice-Simulation/index.html](https://docs.easyeda.com/en/Simulation/Spice-Simulation/index.html) #### _1.From a model in text form_ _First make a note of the exact name given in the .subckt line. Spice names are case insensitive but can only be made up from alphabetical, numeric and underscore characters._ _Using_**_Document > New > Spice Symbol…_**_also automatically sets the Spice Prefix of the symbol to X which is essential for a .subckt definition to attach to your symbol._ This i did, and I could save my symbol _You are now ready to attach your subcircuit to the symbol by opening the attached this spice symbol with subckt dialog using:_ **_Super menu > Miscellaneous > Edit Subckt…_** _and then pasting the .subckt definition that you wish to use into the Subckt string: text area._ When I try to do this, I get "Error: Load subckt failed" How do I attach SPICE subcircuit to Spice Symbol?