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Can someone please help me out how to load the missing symbols as I have installed all the pre requisite libraries but still unable to process example schematics and not able to access pins and voltage generators like vpulse and vdc

<@U05Q20P88MC> Do you have a `xschemrc` file in the directory where you execute `xschem`? There is an `XSCHEM_LIBRARY_PATH` variable that contains the search path for objects. If you have this file, you may just need to set `PDKPATH` like this
```export PDKPATH=$PDK_ROOT/$PDK```

<@U05Q20P88MC> this is the top example schematic page of xschem, it is not bound to any pdk, so you should be able to see the examples by starting xschem in a directory not containing any `xschemrc` file and without any `xschemrc` file in `~/.xschem`. The default search paths for these examples are compiled in the program, to allow new users to see some examples without editing any configuration file.

<@U05Q20P88MC> Of course I assume you built xschem from the sources, so downloaded the sources from github or sourceforge. Pre-packaged xschem versions (installed with `sudo apt install xschem`) are too old.

Thank you <@U01819B63HP> <@U017X0NM2E7> I was able to resolve my issue, I had installed xschem using the built in commands and hence wasn't able to utilise the GUI and had missing symbols and libraries, I purged the xschem and reintsalled and is working fine. Thank you for the quick response !