Show Reinstall VSCode Error Message when our Bundled tsserver.js is Missing (microsoft#21690)

mjbvz · web-flow · commit 6f8ea44ca238 · 2017-03-03T12:48:31.000-08:00
* Add resintall message when bundled tsserver.js is missing. Fixes microsoft#21689 * Use common wording for error * Update warning message
diff --git a/extensions/typescript/src/typescriptServiceClient.ts b/extensions/typescript/src/typescriptServiceClient.ts
@@ -394,7 +394,10 @@ export default class TypeScriptServiceClient implements ITypescriptServiceClient
 				if (!fs.existsSync(modulePath)) {
 					window.showWarningMessage(localize('noServerFound', 'The path {0} doesn\'t point to a valid tsserver install. Falling back to bundled TypeScript version.', path.dirname(modulePath)));
 					modulePath = this.bundledTypeScriptPath;
-					// TODO check again?
+					if (!fs.existsSync(modulePath)) {
+						window.showErrorMessage(localize('noBundledServerFound', 'VSCode\'s tsserver was deleted by a another application such as a misbehaving virus detection tool. Please reinstall VS Code.'));
+						return reject(new Error('Could not find bundled tsserver.js'));
+					}
 				}
 
 				let version = this.getTypeScriptVersion(modulePath);
