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when i start ganache-cli with command, it gives this error : 

❯ ganache-cli
Ganache CLI v6.4.1 (ganache-core: 2.5.3)
Error: listen EADDRINUSE 127.0.0.1:8545
    at Server.setupListenHandle [as _listen2] (net.js:1360:14)
    at listenInCluster (net.js:1401:12)
    at doListen (net.js:1510:7)
    at _combinedTickCallback (internal/process/next_tick.js:142:11)
    at process._tickCallback (internal/process/next_tick.js:181:9)
    at Function.Module.runMain (module.js:696:11)
    at startup (bootstrap_node.js:204:16)
    at bootstrap_node.js:625:3

so i checked which process am i using on port 8545, but it seemed like nothing.

❯ lsof -i :8545

~
❯

also, if i run ganache-cli -p 7545, i works on 127.0.0.1:7545 without any problems.

does anyone have any idea if this is a bug or i did something wrong starting ganache?

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  • Restart your machine.
    – goodvibration
    Commented Mar 21, 2019 at 6:49
  • yes, i did a few times but nothing changed.
    – user76333
    Commented Mar 21, 2019 at 7:42
  • 3
    Oh, actually, I think I know what the problem might be. Did you happen to install Parity at some point? It automatically runs at start-up, and listens to 8545 by default. Look for a Parity process and shut it down, or alternatively, change your system settings to prevent it from running at start-up. Side note: it might also be the case for Geth.
    – goodvibration
    Commented Mar 21, 2019 at 7:52

2 Answers 2

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1

It solved with @goodvibration 's answer.

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1.check which process is using port 8545 ?
Ubuntu/mac -> lsof -i :8545
Windows ->netstat -aof | findstr :8545

2.kill the process
Ubuntu ->pkill node(process/COMMAND name form above output)
Windows ->try Task Manager

3.try to run ganache-cli agin

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