appium crash

gistfile1.txt

[MJSONWP] Encountered internal error running command: Error: Error: not opened
    at ../../lib/webkit-rpc-client.js:91:18
    at WebSocket.send (/usr/local/lib/node_modules/appium/node_modules/ws/lib/WebSocket.js:218:35)
    at ../../lib/webkit-rpc-client.js:88:19
    at Promise._execute (/usr/local/lib/node_modules/appium/node_modules/appium-remote-debugger/node_modules/bluebird/js/release/debuggability.js:300:9)
    at Promise._resolveFromExecutor (/usr/local/lib/node_modules/appium/node_modules/appium-remote-debugger/node_modules/bluebird/js/release/promise.js:483:18)
    at new Promise (/usr/local/lib/node_modules/appium/node_modules/appium-remote-debugger/node_modules/bluebird/js/release/promise.js:79:10)
    at WebKitRpcClient.send$ (../../lib/webkit-rpc-client.js:79:12)
    at tryCatch (/usr/local/lib/node_modules/appium/node_modules/babel-runtime/regenerator/runtime.js:67:40)
    at GeneratorFunctionPrototype.invoke [as _invoke] (/usr/local/lib/node_modules/appium/node_modules/babel-runtime/regenerator/runtime.js:315:22)
    at GeneratorFunctionPrototype.prototype.(anonymous function) [as next] (/usr/local/lib/node_modules/appium/node_modules/babel-runtime/regenerator/runtime.js:100:21)
    at invoke (/usr/local/lib/node_modules/appium/node_modules/babel-runtime/regenerator/runtime.js:136:37)
    at enqueueResult (/usr/local/lib/node_modules/appium/node_modules/babel-runtime/regenerator/runtime.js:185:17)
    at F (/usr/local/lib/node_modules/appium/node_modules/core-js/library/modules/$.export.js:30:36)
    at AsyncIterator.enqueue (/usr/local/lib/node_modules/appium/node_modules/babel-runtime/regenerator/runtime.js:184:12)
    at AsyncIterator.prototype.(anonymous function) [as next] (/usr/local/lib/node_modules/appium/node_modules/babel-runtime/regenerator/runtime.js:100:21)
    at Object.runtime.async (/usr/local/lib/node_modules/appium/node_modules/babel-runtime/regenerator/runtime.js:209:12)
    at WebKitRpcClient.send (../../lib/webkit-rpc-client.js:78:11)
    at WebKitRemoteDebugger.navToUrl$ (../../lib/remote-debugger.js:417:10)
    at tryCatch (/usr/local/lib/node_modules/appium/node_modules/babel-runtime/regenerator/runtime.js:67:40)
    at GeneratorFunctionPrototype.invoke [as _invoke] (/usr/local/lib/node_modules/appium/node_modules/babel-runtime/regenerator/runtime.js:315:22)
    at GeneratorFunctionPrototype.prototype.(anonymous function) [as next] (/usr/local/lib/node_modules/appium/node_modules/babel-runtime/regenerator/runtime.js:100:21)
    at invoke (/usr/local/lib/node_modules/appium/node_modules/babel-runtime/regenerator/runtime.js:136:37)
    at enqueueResult (/usr/local/lib/node_modules/appium/node_modules/babel-runtime/regenerator/runtime.js:185:17)
    at F (/usr/local/lib/node_modules/appium/node_modules/core-js/library/modules/$.export.js:30:36)
    at AsyncIterator.enqueue (/usr/local/lib/node_modules/appium/node_modules/babel-runtime/regenerator/runtime.js:184:12)
    at AsyncIterator.prototype.(anonymous function) [as next] (/usr/local/lib/node_modules/appium/node_modules/babel-runtime/regenerator/runtime.js:100:21)
    at Object.runtime.async (/usr/local/lib/node_modules/appium/node_modules/babel-runtime/regenerator/runtime.js:209:12)
    at WebKitRemoteDebugger.navToUrl (../../lib/remote-debugger.js:411:17)
    at XCUITestDriver.callee$0$0$ (../../../lib/commands/web.js:73:21)
    at tryCatch (/usr/local/lib/node_modules/appium/node_modules/babel-runtime/regenerator/runtime.js:67:40)
    at GeneratorFunctionPrototype.invoke [as _invoke] (/usr/local/lib/node_modules/appium/node_modules/babel-runtime/regenerator/runtime.js:315:22)
    at GeneratorFunctionPrototype.prototype.(anonymous function) [as next] (/usr/local/lib/node_modules/appium/node_modules/babel-runtime/regenerator/runtime.js:100:21)
    at invoke (/usr/local/lib/node_modules/appium/node_modules/babel-runtime/regenerator/runtime.js:136:37)
    at enqueueResult (/usr/local/lib/node_modules/appium/node_modules/babel-runtime/regenerator/runtime.js:185:17)
    at F (/usr/local/lib/node_modules/appium/node_modules/core-js/library/modules/$.export.js:30:36)
    at AsyncIterator.enqueue (/usr/local/lib/node_modules/appium/node_modules/babel-runtime/regenerator/runtime.js:184:12)
    at AsyncIterator.prototype.(anonymous function) [as next] (/usr/local/lib/node_modules/appium/node_modules/babel-runtime/regenerator/runtime.js:100:21)
    at Object.runtime.async (/usr/local/lib/node_modules/appium/node_modules/babel-runtime/regenerator/runtime.js:209:12)
    at XCUITestDriver.callee$0$0 [as setUrl] (../../../lib/commands/web.js:63:38)
    at ../../../lib/basedriver/driver.js:218:24
    at tryCatcher (/usr/local/lib/node_modules/appium/node_modules/bluebird/js/main/util.js:26:23)
    at Promise._settlePromiseFromHandler (/usr/local/lib/node_modules/appium/node_modules/bluebird/js/main/promise.js:510:31)
    at Promise._settlePromiseAt (/usr/local/lib/node_modules/appium/node_modules/bluebird/js/main/promise.js:584:18)
    at Promise._settlePromiseAtPostResolution (/usr/local/lib/node_modules/appium/node_modules/bluebird/js/main/promise.js:248:10)
    at Async._drainQueue (/usr/local/lib/node_modules/appium/node_modules/bluebird/js/main/async.js:128:12)
    at Async._drainQueues (/usr/local/lib/node_modules/appium/node_modules/bluebird/js/main/async.js:133:10)
    at Immediate.Async.drainQueues (/usr/local/lib/node_modules/appium/node_modules/bluebird/js/main/async.js:15:14)
    at runCallback (timers.js:666:20)
    at tryOnImmediate (timers.js:639:5)
    at processImmediate [as _immediateCallback] (timers.js:611:5)