diff --git a/CHANGELOG.md b/CHANGELOG.md
index 3d81ac1..c40ccd9 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,9 @@
 # Change Log
 
+## v0.3.2
+
+* Improved error reporting when language service cannot be started (tintoy/msbuild-project-tools-server#17).
+
 ## v0.3.1
 
 * Language service now targets .NET Core 3.0 (tintoy/msbuild-project-tools-server#17).
diff --git a/lib/server b/lib/server
index d49da85..f749fa2 160000
--- a/lib/server
+++ b/lib/server
@@ -1 +1 @@
-Subproject commit d49da85ae4c8ba048a5673ac5227194e81512fca
+Subproject commit f749fa29d0e40384d8a6f25df3c0eff212f8ed69
diff --git a/package-lock.json b/package-lock.json
index a3fb01c..09eb0c0 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,19 +1,39 @@
 {
     "name": "msbuild-project-tools",
-    "version": "0.3.1",
+    "version": "0.3.2",
     "lockfileVersion": 1,
     "requires": true,
     "dependencies": {
+        "@babel/code-frame": {
+            "version": "7.5.5",
+            "resolved": "https://registry.npmjs.org/@babel/code-frame/-/code-frame-7.5.5.tgz",
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+            "dev": true,
+            "requires": {
+                "@babel/highlight": "^7.0.0"
+            }
+        },
+        "@babel/highlight": {
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+            "resolved": "https://registry.npmjs.org/@babel/highlight/-/highlight-7.5.0.tgz",
+            "integrity": "sha512-7dV4eu9gBxoM0dAnj/BCFDW9LFU0zvTrkq0ugM7pnHEgguOEeOz1so2ZghEdzviYzQEED0r4EAgpsBChKy1TRQ==",
+            "dev": true,
+            "requires": {
+                "chalk": "^2.0.0",
+                "esutils": "^2.0.2",
+                "js-tokens": "^4.0.0"
+            }
+        },
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-            "resolved": "https://registry.npmjs.org/@types/chai/-/chai-4.0.3.tgz",
-            "integrity": "sha512-AkwKxZJ3ml5OsKi0kNTzGBANM3vwcnNS8nu/geVFaM55raUQ8Gz5MhPuu2cQqhf3h829tFfIGD1pbZSc2lNJeg==",
+            "version": "4.2.4",
+            "resolved": "https://registry.npmjs.org/@types/chai/-/chai-4.2.4.tgz",
+            "integrity": "sha512-7qvf9F9tMTzo0akeswHPGqgUx/gIaJqrOEET/FCD8CFRkSUHlygQiM5yB6OvjrtdxBVLSyw7COJubsFYs0683g==",
             "dev": true
         },
         "@types/mocha": {
-            "version": "2.2.41",
-            "resolved": "https://registry.npmjs.org/@types/mocha/-/mocha-2.2.41.tgz",
-            "integrity": "sha1-4nzwgXFT658nE7LT9saPHhw8pgg=",
+            "version": "5.2.7",
+            "resolved": "https://registry.npmjs.org/@types/mocha/-/mocha-5.2.7.tgz",
+            "integrity": "sha512-NYrtPht0wGzhwe9+/idPaBB+TqkY9AhTvOLMkThm0IoEfLaiVQZwBwyJ5puCkO3AUCWrmcoePjp2mbFocKy4SQ==",
             "dev": true
         },
         "@types/mz": {
@@ -26,9 +46,9 @@
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-            "resolved": "https://registry.npmjs.org/@types/node/-/node-6.0.85.tgz",
-            "integrity": "sha512-6qLZpfQFO/g5Ns2e7RsW6brk0Q6Xzwiw7kVVU/XiQNOiJXSojhX76GP457PBYIsNMH2WfcGgcnZB4awFDHrwpA==",
+            "version": "6.14.9",
+            "resolved": "https://registry.npmjs.org/@types/node/-/node-6.14.9.tgz",
+            "integrity": "sha512-leP/gxHunuazPdZaCvsCefPQxinqUDsCxCR5xaDUrY2MkYxQRFZZwU5e7GojyYsGB7QVtCi7iVEl/hoFXQYc+w==",
             "dev": true
         },
         "@types/object-path": {
@@ -38,15 +58,21 @@
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         },
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-            "resolved": "https://registry.npmjs.org/@types/semver/-/semver-5.3.34.tgz",
-            "integrity": "sha512-D5n5ED81GbLKte4CxAH1/DBk3pfyknglGe96FrgrNIeAaJUyljJlAN7nXCJx2lpByz1fsWcMwzxR5kRPHzfP/w==",
+            "version": "5.5.0",
+            "resolved": "https://registry.npmjs.org/@types/semver/-/semver-5.5.0.tgz",
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+            "dev": true
+        },
+        "@types/vscode": {
+            "version": "1.39.0",
+            "resolved": "https://registry.npmjs.org/@types/vscode/-/vscode-1.39.0.tgz",
+            "integrity": "sha512-rlg0okXDt7NjAyHXbZ2nO1I/VY/8y9w67ltLRrOxXQ46ayvrYZavD4A6zpYrGbs2+ZOEQzcUs+QZOqcVGQIxXQ==",
             "dev": true
         },
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-            "resolved": "https://registry.npmjs.org/@types/which/-/which-1.0.28.tgz",
-            "integrity": "sha1-AW44dim4gXvtZT/jLqtdESecjfY=",
+            "version": "1.3.2",
+            "resolved": "https://registry.npmjs.org/@types/which/-/which-1.3.2.tgz",
+            "integrity": "sha512-8oDqyLC7eD4HM307boe2QWKyuzdzWBj56xI/imSl2cpL+U3tCMaTAkMJ4ee5JBZ/FsOJlvRGeIShiZDAl1qERA==",
             "dev": true
         },
         "@types/xmldom": {
@@ -55,163 +81,45 @@
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-            "dev": true,
-            "requires": {
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+        "ansi-colors": {
+            "version": "3.2.3",
+            "resolved": "https://registry.npmjs.org/ansi-colors/-/ansi-colors-3.2.3.tgz",
+            "integrity": "sha512-LEHHyuhlPY3TmuUYMh2oz89lTShfvgbmzaBcxve9t/9Wuy7Dwf4yoAKcND7KFT1HAQfqZ12qtc+DUrBMeKF9nw==",
+            "dev": true
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         "ansi-regex": {
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-                    "version": "0.10.31",
-                    "resolved": "https://registry.npmjs.org/string_decoder/-/string_decoder-0.10.31.tgz",
-                    "integrity": "sha1-YuIDvEF2bGwoyfyEMB2rHFMQ+pQ=",
+                    "resolved": "https://registry.npmjs.org/ansi-regex/-/ansi-regex-4.1.0.tgz",
+                    "integrity": "sha512-1apePfXM1UOSqw0o9IiFAovVz9M5S1Dg+4TrDwfMewQ6p/rmMueb7tWZjQ1rx4Loy1ArBggoqGpfqqdI4rondg==",
                     "dev": true
                 },
-                "supports-color": {
-                    "version": "4.4.0",
-                    "resolved": "https://registry.npmjs.org/supports-color/-/supports-color-4.4.0.tgz",
-                    "integrity": "sha512-rKC3+DyXWgK0ZLKwmRsrkyHVZAjNkfzeehuFWdGGcqGDTZFH73+RH6S/RDAAxl9GusSjZSUWYLmT9N5pzXFOXQ==",
+                "string-width": {
+                    "version": "3.1.0",
+                    "resolved": "https://registry.npmjs.org/string-width/-/string-width-3.1.0.tgz",
+                    "integrity": "sha512-vafcv6KjVZKSgz06oM/H6GDBrAtz8vdhQakGjFIvNrHA6y3HCF1CInLy+QLq8dTJPQ1b+KDUqDFctkdRW44e1w==",
                     "dev": true,
                     "requires": {
-                        "has-flag": "^2.0.0"
+                        "emoji-regex": "^7.0.1",
+                        "is-fullwidth-code-point": "^2.0.0",
+                        "strip-ansi": "^5.1.0"
                     }
                 },
-                "through2": {
-                    "version": "0.6.5",
-                    "resolved": "https://registry.npmjs.org/through2/-/through2-0.6.5.tgz",
-                    "integrity": "sha1-QaucZ7KdVyCQcUEOHXp6lozTrUg=",
+                "strip-ansi": {
+                    "version": "5.2.0",
+                    "resolved": "https://registry.npmjs.org/strip-ansi/-/strip-ansi-5.2.0.tgz",
+                    "integrity": "sha512-DuRs1gKbBqsMKIZlrffwlug8MHkcnpjs5VPmL1PAh+mA30U0DTotfDZ0d2UUsXpPmPmMMJ6W773MaA3J+lbiWA==",
                     "dev": true,
                     "requires": {
-                        "readable-stream": ">=1.0.33-1 <1.1.0-0",
-                        "xtend": ">=4.0.0 <4.1.0-0"
+                        "ansi-regex": "^4.1.0"
                     }
                 }
             }
         },
-        "vscode-jsonrpc": {
-            "version": "3.5.0",
-            "resolved": "https://registry.npmjs.org/vscode-jsonrpc/-/vscode-jsonrpc-3.5.0.tgz",
-            "integrity": "sha1-hyOdnhZrLXNSJFuKgTWXgEwdY6o="
-        },
-        "vscode-languageclient": {
-            "version": "3.5.0",
-            "resolved": "https://registry.npmjs.org/vscode-languageclient/-/vscode-languageclient-3.5.0.tgz",
-            "integrity": "sha1-NtAswYaoNlpEZ3GaKQ+yAKmuSQo=",
-            "requires": {
-                "vscode-languageserver-protocol": "^3.5.0"
-            }
-        },
-        "vscode-languageserver-protocol": {
-            "version": "3.5.0",
-            "resolved": "https://registry.npmjs.org/vscode-languageserver-protocol/-/vscode-languageserver-protocol-3.5.0.tgz",
-            "integrity": "sha1-Bnxcvidwl5U5jRGWksl+u6FFIgk=",
-            "requires": {
-                "vscode-jsonrpc": "^3.5.0",
-                "vscode-languageserver-types": "^3.5.0"
-            }
-        },
-        "vscode-languageserver-types": {
-            "version": "3.5.0",
-            "resolved": "https://registry.npmjs.org/vscode-languageserver-types/-/vscode-languageserver-types-3.5.0.tgz",
-            "integrity": "sha1-5I15li8LjgLelV4/UkkI4rGcA3Q="
-        },
-        "which": {
-            "version": "1.3.0",
-            "resolved": "https://registry.npmjs.org/which/-/which-1.3.0.tgz",
-            "integrity": "sha512-xcJpopdamTuY5duC/KnTTNBraPK54YwpenP4lzxU8H91GudWpFv38u0CKjclE1Wi2EH2EDz5LRcHcKbCIzqGyg==",
-            "requires": {
-                "isexe": "^2.0.0"
-            }
-        },
         "wrappy": {
             "version": "1.0.2",
             "resolved": "https://registry.npmjs.org/wrappy/-/wrappy-1.0.2.tgz",
@@ -3109,29 +1068,77 @@
             "resolved": "https://registry.npmjs.org/xmldom/-/xmldom-0.1.27.tgz",
             "integrity": "sha1-1QH5ezvbQDr4757MIFcxh6rawOk="
         },
-        "xtend": {
-            "version": "4.0.1",
-            "resolved": "https://registry.npmjs.org/xtend/-/xtend-4.0.1.tgz",
-            "integrity": "sha1-pcbVMr5lbiPbgg77lDofBJmNY68=",
+        "y18n": {
+            "version": "4.0.0",
+            "resolved": "https://registry.npmjs.org/y18n/-/y18n-4.0.0.tgz",
+            "integrity": "sha512-r9S/ZyXu/Xu9q1tYlpsLIsa3EeLXXk0VwlxqTcFRfg9EhMW+17kbt9G0NrgCmhGb5vT2hyhJZLfDGx+7+5Uj/w==",
             "dev": true
         },
-        "yauzl": {
-            "version": "2.9.1",
-            "resolved": "https://registry.npmjs.org/yauzl/-/yauzl-2.9.1.tgz",
-            "integrity": "sha1-qBmB6nCleUYTOIPwKcWCGok1mn8=",
+        "yargs": {
+            "version": "13.3.0",
+            "resolved": "https://registry.npmjs.org/yargs/-/yargs-13.3.0.tgz",
+            "integrity": "sha512-2eehun/8ALW8TLoIl7MVaRUrg+yCnenu8B4kBlRxj3GJGDKU1Og7sMXPNm1BYyM1DOJmTZ4YeN/Nwxv+8XJsUA==",
+            "dev": true,
+            "requires": {
+                "cliui": "^5.0.0",
+                "find-up": "^3.0.0",
+                "get-caller-file": "^2.0.1",
+                "require-directory": "^2.1.1",
+                "require-main-filename": "^2.0.0",
+                "set-blocking": "^2.0.0",
+                "string-width": "^3.0.0",
+                "which-module": "^2.0.0",
+                "y18n": "^4.0.0",
+                "yargs-parser": "^13.1.1"
+            },
+            "dependencies": {
+                "ansi-regex": {
+                    "version": "4.1.0",
+                    "resolved": "https://registry.npmjs.org/ansi-regex/-/ansi-regex-4.1.0.tgz",
+                    "integrity": "sha512-1apePfXM1UOSqw0o9IiFAovVz9M5S1Dg+4TrDwfMewQ6p/rmMueb7tWZjQ1rx4Loy1ArBggoqGpfqqdI4rondg==",
+                    "dev": true
+                },
+                "string-width": {
+                    "version": "3.1.0",
+                    "resolved": "https://registry.npmjs.org/string-width/-/string-width-3.1.0.tgz",
+                    "integrity": "sha512-vafcv6KjVZKSgz06oM/H6GDBrAtz8vdhQakGjFIvNrHA6y3HCF1CInLy+QLq8dTJPQ1b+KDUqDFctkdRW44e1w==",
+                    "dev": true,
+                    "requires": {
+                        "emoji-regex": "^7.0.1",
+                        "is-fullwidth-code-point": "^2.0.0",
+                        "strip-ansi": "^5.1.0"
+                    }
+                },
+                "strip-ansi": {
+                    "version": "5.2.0",
+                    "resolved": "https://registry.npmjs.org/strip-ansi/-/strip-ansi-5.2.0.tgz",
+                    "integrity": "sha512-DuRs1gKbBqsMKIZlrffwlug8MHkcnpjs5VPmL1PAh+mA30U0DTotfDZ0d2UUsXpPmPmMMJ6W773MaA3J+lbiWA==",
+                    "dev": true,
+                    "requires": {
+                        "ansi-regex": "^4.1.0"
+                    }
+                }
+            }
+        },
+        "yargs-parser": {
+            "version": "13.1.1",
+            "resolved": "https://registry.npmjs.org/yargs-parser/-/yargs-parser-13.1.1.tgz",
+            "integrity": "sha512-oVAVsHz6uFrg3XQheFII8ESO2ssAf9luWuAd6Wexsu4F3OtIW0o8IribPXYrD4WC24LWtPrJlGy87y5udK+dxQ==",
             "dev": true,
             "requires": {
-                "buffer-crc32": "~0.2.3",
-                "fd-slicer": "~1.0.1"
+                "camelcase": "^5.0.0",
+                "decamelize": "^1.2.0"
             }
         },
-        "yazl": {
-            "version": "2.4.3",
-            "resolved": "https://registry.npmjs.org/yazl/-/yazl-2.4.3.tgz",
-            "integrity": "sha1-7CblzIfVYBud+EMtvdPNLlFzoHE=",
+        "yargs-unparser": {
+            "version": "1.6.0",
+            "resolved": "https://registry.npmjs.org/yargs-unparser/-/yargs-unparser-1.6.0.tgz",
+            "integrity": "sha512-W9tKgmSn0DpSatfri0nx52Joq5hVXgeLiqR/5G0sZNDoLZFOr/xjBUDcShCOGNsBnEMNo1KAMBkTej1Hm62HTw==",
             "dev": true,
             "requires": {
-                "buffer-crc32": "~0.2.3"
+                "flat": "^4.1.0",
+                "lodash": "^4.17.15",
+                "yargs": "^13.3.0"
             }
         }
     }
diff --git a/package.json b/package.json
index cba51eb..9d64fc0 100644
--- a/package.json
+++ b/package.json
@@ -2,7 +2,7 @@
     "name": "msbuild-project-tools",
     "displayName": "MSBuild project tools",
     "description": "Tools for working with MSBuild project files (such as auto-complete for package Ids / versions).",
-    "version": "0.3.1",
+    "version": "0.3.2",
     "settingsSchemaVersion": 1,
     "publisher": "tintoy",
     "license": "MIT",
@@ -207,23 +207,22 @@
     "scripts": {
         "vscode:prepublish": "tsc -p ./",
         "compile": "tsc -watch -p ./",
-        "postinstall": "node ./node_modules/vscode/bin/install",
         "test": "node ./node_modules/vscode/bin/test"
     },
     "devDependencies": {
-        "@types/chai": "^4.0.2",
-        "@types/mocha": "^2.2.32",
+        "@types/chai": "^4.2.4",
+        "@types/mocha": "^5.2.7",
         "@types/mz": "0.0.31",
         "@types/node": "^6.0.40",
         "@types/object-path": "^0.9.29",
         "@types/semver": "^5.3.34",
+        "@types/vscode": "^1.39.0",
         "@types/which": "^1.0.28",
         "@types/xmldom": "^0.1.29",
-        "chai": "^4.1.1",
-        "mocha": "^2.3.3",
-        "tslint": "^5.5.0",
-        "typescript": "^2.0.3",
-        "vscode": "^1.1.10"
+        "chai": "^4.2.0",
+        "mocha": "^6.2.2",
+        "tslint": "^5.20.0",
+        "typescript": "^3.6.4"
     },
     "dependencies": {
         "axios": "^0.16.2",
@@ -231,7 +230,7 @@
         "object-path": "^0.11.4",
         "rxjs": "^5.4.2",
         "semver": "^5.4.1",
-        "vscode-languageclient": "^3.5.0",
+        "vscode-languageclient": "^5.2.1",
         "which": "^1.3.0",
         "xmldom": "^0.1.27"
     }
diff --git a/src/extension/extension.ts b/src/extension/extension.ts
index b650046..e778418 100644
--- a/src/extension/extension.ts
+++ b/src/extension/extension.ts
@@ -1,6 +1,7 @@
 'use strict';
 
 import { default as axios } from 'axios';
+import { exec, ChildProcess } from 'child_process';
 import * as path from 'path';
 import * as semver from 'semver';
 import * as vscode from 'vscode';
@@ -37,6 +38,8 @@ const projectDocumentSelector: vscode.DocumentSelector = [
  * @param context The extension context.
  */
 export async function activate(context: vscode.ExtensionContext): Promise<void> {
+    outputChannel = vscode.window.createOutputChannel('MSBuild Project Tools');
+
     const progressOptions: vscode.ProgressOptions = {
         location: vscode.ProgressLocation.Window
     };
@@ -119,8 +122,6 @@ async function loadConfiguration(): Promise<void> {
  * @param canEnableLanguageService Could the language service be enabled if we wanted to?
  */
 async function createClassicCompletionProvider(context: vscode.ExtensionContext, canEnableLanguageService: boolean): Promise<void> {
-    outputChannel = vscode.window.createOutputChannel('MSBuild Project Tools');
-
     if (!configuration.language.useClassicProvider && !canEnableLanguageService)
         outputChannel.appendLine('Cannot enable the MSBuild language service because .NET Core >= 2.0.0 was not found on the system path.');
 
@@ -151,6 +152,8 @@ async function createLanguageClient(context: vscode.ExtensionContext): Promise<v
     statusBarItem.tooltip = 'MSBuild Project Tools';
     statusBarItem.hide();
 
+    outputChannel.appendLine('Starting MSBuild language service...');
+
     const clientOptions: LanguageClientOptions = {
         synchronize: {
             configurationSection: 'msbuildProjectTools'
@@ -158,12 +161,28 @@ async function createLanguageClient(context: vscode.ExtensionContext): Promise<v
         diagnosticCollectionName: 'MSBuild Project',
         errorHandler: {
             error: (error, message, count) => {
+                if (count > 2)  // Don't be annoying
+                    return ErrorAction.Shutdown;
+
                 console.log(message);
                 console.log(error);
 
+                if (message)
+                    outputChannel.appendLine(`The MSBuild language server encountered an unexpected error: ${message}\n\n${error}`);
+                else
+                    outputChannel.appendLine(`The MSBuild language server encountered an unexpected error.\n\n${error}`);
+
                 return ErrorAction.Continue;
             },
-            closed: () => CloseAction.Restart
+            closed: () => CloseAction.DoNotRestart
+        },
+        initializationFailedHandler(error: Error) : boolean {
+            console.log(error);
+            
+            outputChannel.appendLine(`Failed to initialise the MSBuild language server.\n\n${error}`);
+            vscode.window.showErrorMessage(`Failed to initialise MSBuild language server.\n\n${error}`);
+
+            return false; // Don't attempt to restart the language server.
         },
         revealOutputChannelOn: RevealOutputChannelOn.Never
     };
@@ -186,6 +205,15 @@ async function createLanguageClient(context: vscode.ExtensionContext): Promise<v
 
     const dotNetExecutable = await executables.find('dotnet');
     const serverAssembly = context.asAbsolutePath('out/language-server/MSBuildProjectTools.LanguageServer.Host.dll');
+
+    // Probe language server (see if it can start at all).
+    const serverProbeSuccess: boolean = await probeLanguageServer(dotNetExecutable, serverAssembly);
+    if (!serverProbeSuccess) {
+        vscode.window.showErrorMessage('Unable to start MSBuild language server (see the output window for details).');
+
+        return;
+    }
+
     const serverOptions: ServerOptions = {
         command: dotNetExecutable,
         args: [serverAssembly],
@@ -203,15 +231,80 @@ async function createLanguageClient(context: vscode.ExtensionContext): Promise<v
 
     handleBusyNotifications(languageClient, statusBarItem);
 
-    outputChannel = languageClient.outputChannel;
-    outputChannel.appendLine('Starting MSBuild language service...');
-    context.subscriptions.push(
-        languageClient.start()
-    );
-    await languageClient.onReady();
+    let languageClientDisposal : vscode.Disposable;
+    try {
+        languageClientDisposal = languageClient.start();
+        context.subscriptions.push(languageClientDisposal);
+    }
+    catch (startFailed) {
+        outputChannel.appendLine(`Failed to start MSBuild language service.\n\n${startFailed}`);
+        languageClientDisposal.dispose();
+
+        return;
+    }
+
+    try {
+        await languageClient.onReady();
+    } catch (onReadyFailed) {
+        outputChannel.appendLine(`Failed to start MSBuild language server.\n\n${onReadyFailed}`);
+        languageClientDisposal.dispose();
+
+        return;
+    }
+
     outputChannel.appendLine('MSBuild language service is running.');
 }
 
+/**
+ * Attempt to start the language server process in probe mode (to see if it can be started at all).
+ * 
+ * @param dotNetExecutable The full path to the .NET Core host executable ("dotnet" or "dotnet.exe").
+ * @param serverAssembly The full path to the language server host assembly.
+ */
+function probeLanguageServer(dotNetExecutable: string, serverAssembly: string): Promise<boolean> {
+    return new Promise(resolve => {
+        let serverError: Error;
+        let serverStdOut: string;
+        let serverStdErr: string;
+
+        const languageServerProcess = exec(`"${dotNetExecutable}" "${serverAssembly}" --probe`, (error, stdout, stderr) => {
+            serverError = error;
+            serverStdOut = stdout;
+            serverStdErr = stderr;
+        });
+
+        languageServerProcess.on('close', exitCode => {
+            if (!serverError && exitCode === 0) {
+                resolve(true);
+
+                return;
+            }
+
+            console.log("Failed to start language server.");
+            outputChannel.appendLine('Failed to start the MSBuild language server.');
+
+            if (serverError) {
+                console.log(serverError);
+                outputChannel.appendLine(
+                    serverError.toString()
+                );
+            }
+
+            if (serverStdOut) {
+                console.log(serverStdOut);
+                outputChannel.appendLine(serverStdOut);
+            }
+
+            if (serverStdErr) {
+                console.log(serverStdErr);
+                outputChannel.appendLine(serverStdErr);
+            }
+
+            resolve(false);
+        });
+    });
+}
+
 /**
  * Handle document-change events to automatically insert a closing parenthesis for common MSBuild expressions.
  */