bump remix-plugin version

package.json

 {
   "name": "remixd",
-  "version": "0.2.3-alpha.1",
+  "version": "0.2.3-alpha.4",
   "description": "remix server: allow accessing file system from remix.ethereum.org and start a dev environment (see help section)",
   "main": "./lib/src/index.js",
   "types": "./lib/src/index.d.ts",
@@ -32,13 +32,13 @@
   },
   "homepage": "https://github.com/ethereum/remixd#readme",
   "dependencies": {
-    "@remixproject/plugin": "0.3.0-alpha.3",
-    "@remixproject/plugin-ws": "0.3.0-alpha.1",
+    "@remixproject/plugin": "^0.3.0-alpha.8",
+    "@remixproject/plugin-ws": "^0.3.0-alpha.4",
+    "chokidar": "^2.1.8",
     "commander": "^2.20.3",
+    "fs-extra": "^3.0.1",
     "isbinaryfile": "^3.0.2",
-    "ws": "^7.3.0",
-    "chokidar": "^2.1.8",
-    "fs-extra": "^3.0.1"
+    "ws": "^7.3.0"
   },
   "python": {
     "execPath": "python3",

src/services/remixdClient.ts

@@ -51,7 +51,7 @@ export class RemixdClient extends PluginClient {
         const path = utils.absolutePath(args.path, this.currentSharedFolder)
   
         if (!fs.existsSync(path)) {
-          reject('File not found ' + path)
+          return reject('File not found ' + path)
         }
         if (!isRealPath(path)) return
         isbinaryfile(path, (error: Error, isBinary: boolean) => {