diff --git a/lib/protocol.d.ts b/lib/protocol.d.ts
index 72b0608188e05..cb968d0138b6c 100644
--- a/lib/protocol.d.ts
+++ b/lib/protocol.d.ts
@@ -1543,6 +1543,10 @@ declare namespace ts.server.protocol {
          * Comma separated list of installed typing packages
          */
         installedPackages: string;
+        /**
+         * true if install request succeeded, otherwise - false
+         */
+        installSuccess: boolean;
     }
     interface NavBarResponse extends Response {
         body?: NavigationBarItem[];
diff --git a/lib/tsc.js b/lib/tsc.js
index 1bc244c8dda5b..662a7f2bc4979 100644
--- a/lib/tsc.js
+++ b/lib/tsc.js
@@ -37138,7 +37138,7 @@ var ts;
 })(ts || (ts = {}));
 var ts;
 (function (ts) {
-    ts.version = "2.0.8";
+    ts.version = "2.0.9";
     var emptyArray = [];
     function findConfigFile(searchPath, fileExists, configName) {
         if (configName === void 0) { configName = "tsconfig.json"; }
diff --git a/lib/tsserver.js b/lib/tsserver.js
index fc1307a1eae76..9d57b342d3453 100644
--- a/lib/tsserver.js
+++ b/lib/tsserver.js
@@ -38553,7 +38553,7 @@ var ts;
 })(ts || (ts = {}));
 var ts;
 (function (ts) {
-    ts.version = "2.0.8";
+    ts.version = "2.0.9";
     var emptyArray = [];
     function findConfigFile(searchPath, fileExists, configName) {
         if (configName === void 0) { configName = "tsconfig.json"; }
@@ -56346,7 +56346,8 @@ var ts;
                         var body = {
                             telemetryEventName: "typingsInstalled",
                             payload: {
-                                installedPackages: response.packagesToInstall.join(",")
+                                installedPackages: response.packagesToInstall.join(","),
+                                installSuccess: response.installSuccess
                             }
                         };
                         var eventName = "telemetry";
diff --git a/lib/tsserverlibrary.d.ts b/lib/tsserverlibrary.d.ts
index 80b05d8f9557d..4ea77e69fdd1d 100644
--- a/lib/tsserverlibrary.d.ts
+++ b/lib/tsserverlibrary.d.ts
@@ -663,6 +663,7 @@ declare namespace ts.server.protocol {
     }
     interface TypingsInstalledTelemetryEventPayload {
         installedPackages: string;
+        installSuccess: boolean;
     }
     interface NavBarResponse extends Response {
         body?: NavigationBarItem[];
diff --git a/lib/tsserverlibrary.js b/lib/tsserverlibrary.js
index 4fc9ce85d8f54..597d5236af5ac 100644
--- a/lib/tsserverlibrary.js
+++ b/lib/tsserverlibrary.js
@@ -38553,7 +38553,7 @@ var ts;
 })(ts || (ts = {}));
 var ts;
 (function (ts) {
-    ts.version = "2.0.8";
+    ts.version = "2.0.9";
     var emptyArray = [];
     function findConfigFile(searchPath, fileExists, configName) {
         if (configName === void 0) { configName = "tsconfig.json"; }
diff --git a/lib/typescript.js b/lib/typescript.js
index dd38c8e15ba7c..6e73e1ab4daba 100644
--- a/lib/typescript.js
+++ b/lib/typescript.js
@@ -44687,7 +44687,7 @@ var ts;
 var ts;
 (function (ts) {
     /** The version of the TypeScript compiler release */
-    ts.version = "2.0.8";
+    ts.version = "2.0.9";
     var emptyArray = [];
     function findConfigFile(searchPath, fileExists, configName) {
         if (configName === void 0) { configName = "tsconfig.json"; }
diff --git a/lib/typescriptServices.js b/lib/typescriptServices.js
index dd38c8e15ba7c..6e73e1ab4daba 100644
--- a/lib/typescriptServices.js
+++ b/lib/typescriptServices.js
@@ -44687,7 +44687,7 @@ var ts;
 var ts;
 (function (ts) {
     /** The version of the TypeScript compiler release */
-    ts.version = "2.0.8";
+    ts.version = "2.0.9";
     var emptyArray = [];
     function findConfigFile(searchPath, fileExists, configName) {
         if (configName === void 0) { configName = "tsconfig.json"; }
diff --git a/lib/typingsInstaller.js b/lib/typingsInstaller.js
index fdbb477291eee..6df9fd24e741e 100644
--- a/lib/typingsInstaller.js
+++ b/lib/typingsInstaller.js
@@ -5878,7 +5878,7 @@ var ts;
                     }
                     this.knownCachesSet[cacheLocation] = true;
                 };
-                TypingsInstaller.prototype.filterAndMapToScopedName = function (typingsToInstall) {
+                TypingsInstaller.prototype.filterTypings = function (typingsToInstall) {
                     if (typingsToInstall.length === 0) {
                         return typingsToInstall;
                     }
@@ -5891,7 +5891,7 @@ var ts;
                         var validationResult = validatePackageName(typing);
                         if (validationResult === PackageNameValidationResult.Ok) {
                             if (typing in this.typesRegistry) {
-                                result.push("@types/" + typing);
+                                result.push(typing);
                             }
                             else {
                                 if (this.log.isEnabled()) {
@@ -5942,7 +5942,8 @@ var ts;
                     if (this.log.isEnabled()) {
                         this.log.writeLine("Installing typings " + JSON.stringify(typingsToInstall));
                     }
-                    var scopedTypings = this.filterAndMapToScopedName(typingsToInstall);
+                    var filteredTypings = this.filterTypings(typingsToInstall);
+                    var scopedTypings = filteredTypings.map(function (x) { return ("@types/" + x); });
                     if (scopedTypings.length === 0) {
                         if (this.log.isEnabled()) {
                             this.log.writeLine("All typings are known to be missing or invalid - no need to go any further");
@@ -5956,18 +5957,26 @@ var ts;
                         if (_this.telemetryEnabled) {
                             _this.sendResponse({
                                 kind: server.EventInstall,
-                                packagesToInstall: scopedTypings
+                                packagesToInstall: scopedTypings,
+                                installSuccess: ok
                             });
                         }
                         if (!ok) {
+                            if (_this.log.isEnabled()) {
+                                _this.log.writeLine("install request failed, marking packages as missing to prevent repeated requests: " + JSON.stringify(filteredTypings));
+                            }
+                            for (var _i = 0, filteredTypings_1 = filteredTypings; _i < filteredTypings_1.length; _i++) {
+                                var typing = filteredTypings_1[_i];
+                                _this.missingTypingsSet[typing] = true;
+                            }
                             return;
                         }
                         if (_this.log.isEnabled()) {
                             _this.log.writeLine("Requested to install typings " + JSON.stringify(scopedTypings) + ", installed typings " + JSON.stringify(scopedTypings));
                         }
                         var installedTypingFiles = [];
-                        for (var _i = 0, scopedTypings_1 = scopedTypings; _i < scopedTypings_1.length; _i++) {
-                            var t = scopedTypings_1[_i];
+                        for (var _a = 0, scopedTypings_1 = scopedTypings; _a < scopedTypings_1.length; _a++) {
+                            var t = scopedTypings_1[_a];
                             var packageName = ts.getBaseFileName(t);
                             if (!packageName) {
                                 continue;
@@ -6161,7 +6170,7 @@ var ts;
                         if (_this.log.isEnabled()) {
                             _this.log.writeLine("npm install #" + requestId + " took: " + (Date.now() - start) + " ms" + ts.sys.newLine + "stdout: " + stdout + ts.sys.newLine + "stderr: " + stderr);
                         }
-                        onRequestCompleted(!!stdout);
+                        onRequestCompleted(!err);
                     });
                 };
                 return NodeTypingsInstaller;