C:\Users\Kane>testrpc


EthereumJS TestRPC v6.0.3 (ganache-core: 2.0.2)

C:\Users\Kane\AppData\Roaming\npm\node_modules\ethereumjs-testrpc\build\cli.node.js:74143

...
...

******Error: listen EADDRINUSE :::8545******

    at Object._errnoException (util.js:1003:13)
    at _exceptionWithHostPort (util.js:1024:20)
    at Server.setupListenHandle [as _listen2] (net.js:1366:14)
    at listenInCluster (net.js:1407:12)
    at Server.listen (net.js:1495:7)
    at Server.server.listen (C:\Users\Kane\AppData\Roaming\npm\node_modules\ethereumjs-testrpc\build\cli.node.js:106030:17)
    at Object.<anonymous> (C:\Users\Kane\AppData\Roaming\npm\node_modules\ethereumjs-testrpc\build\cli.node.js:50244:8)
    at __webpack_require__ (C:\Users\Kane\AppData\Roaming\npm\node_modules\ethereumjs-testrpc\build\cli.node.js:21:30)
    at C:\Users\Kane\AppData\Roaming\npm\node_modules\ethereumjs-testrpc\build\cli.node.js:64:18
    at Object.<anonymous> (C:\Users\Kane\AppData\Roaming\npm\node_modules\ethereumjs-testrpc\build\cli.node.js:67:10)