```
I'm trying to simulate the operation of the AND element and I get an error all the time "the current circuit does not contain a power source symbol"
```
Please read and play with the example simulations in the Simulation Tutorial (3) in (2) in:
[https://easyeda.com/forum/topic/How-to-ask-for-help-and-get-an-answer-71b17a40d15442349eaecbfae083e46a](https://easyeda.com/forum/topic/How-to-ask-for-help-and-get-an-answer-71b17a40d15442349eaecbfae083e46a)<br>
<br>
Please note that the Simulation Tutorial is essential reading prior to attempting simulation in EasyEDA.
Please see these two projects:
[https://oshwlab.com/andyfierman/how-to-use-logic-gates-and-devices-in-easyeda-part-1](https://oshwlab.com/andyfierman/how-to-use-logic-gates-and-devices-in-easyeda-part-1)
[https://oshwlab.com/andyfierman/how-to-use-logic-gates-and-devices-in-easyeda-part-2](https://oshwlab.com/andyfierman/how-to-use-logic-gates-and-devices-in-easyeda-part-2)
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