Hello ; I have tried the same sim as yours since it is basic one and it works without problems   Make sure that you are picking parts that can be simulated from Spice Lib since most of the symbols available from the SHIFT+F library Search Libraries tool cannot be used in simulations because they do not have spice models associated with them Could you please explain more your issue and check this guide for further assistance on EasyEDA sim : [https://docs\.google\.com/document/u/1/d/1OWZVVFRAe\_2NW3WratpkA\_SGuHa5AcRow5ZRfvcoVTU/pub](https://docs.google.com/document/u/1/d/1OWZVVFRAe_2NW3WratpkA_SGuHa5AcRow5ZRfvcoVTU/pub)

@Gerasimow_Maksim, @JLCPCBsupport, The original post is about an AC, not a Transient Analysis. Earlier releases of V6 EasyEDA automatically placed an "AC 1 0" suffix on the voltage sources so users did not have to. The problem with this is that the suffix was placed on every voltage source in a sim and could not be removed. That meant that - except for a very few highly specialised simulations - most AC sims gave meaningless results. In AC sims it only makes sense if the user decides where to manually place the suffix. I raised a bug Report that explains the problem and what must be done to fix it. [https://easyeda.com/forum/topic/AC-Analysis-broken-because-AC-1-is-incorrectly-appended-to-ALL-Voltage-sources-4a0c5d9b028048a98b3bb9b3b6df0567](https://easyeda.com/forum/topic/AC-Analysis-broken-because-AC-1-is-incorrectly-appended-to-ALL-Voltage-sources-4a0c5d9b028048a98b3bb9b3b6df0567) To understand how to do analyses in EasyEDA please read - and in particular, study the chapter on "Setting up analyses" in - the link that support posted above.