debug user launch: resolve variables against a folder if you are in a folder vscode

src/vs/workbench/parts/debug/electron-browser/debugConfigurationManager.ts

@@ -573,6 +573,10 @@ class Launch implements ILaunch {
 		return config.configurations.filter(config => config && config.name === name).shift();
 	}
 
+	protected getWorkspaceForResolving(): IWorkspaceFolder {
+		return this.workspace;
+	}
+
 	public resolveConfiguration(config: IConfig): TPromise<IConfig> {
 		const result = objects.deepClone(config) as IConfig;
 		// Set operating system specific properties #1873
@@ -589,7 +593,7 @@ class Launch implements ILaunch {
 
 		// massage configuration attributes - append workspace path to relatvie paths, substitute variables in paths.
 		Object.keys(result).forEach(key => {
-			result[key] = this.configurationResolverService.resolveAny(this.workspace, result[key]);
+			result[key] = this.configurationResolverService.resolveAny(this.getWorkspaceForResolving(), result[key]);
 		});
 
 		const adapter = this.configurationManager.getAdapter(result.type);
@@ -690,11 +694,20 @@ class UserLaunch extends Launch implements ILaunch {
 		@IWorkbenchEditorService editorService: IWorkbenchEditorService,
 		@IConfigurationService configurationService: IConfigurationService,
 		@IConfigurationResolverService configurationResolverService: IConfigurationResolverService,
-		@IPreferencesService private preferencesService: IPreferencesService
+		@IPreferencesService private preferencesService: IPreferencesService,
+		@IWorkspaceContextService private contextService: IWorkspaceContextService
 	) {
 		super(configurationManager, undefined, fileService, editorService, configurationService, configurationResolverService);
 	}
 
+	protected getWorkspaceForResolving(): IWorkspaceFolder {
+		if (this.contextService.getWorkbenchState() === WorkbenchState.FOLDER) {
+			return this.contextService.getWorkspace().folders[0];
+		}
+
+		return undefined;
+	}
+
 	get uri(): uri {
 		return this.preferencesService.userSettingsResource;
 	}