Made it so that the empty, unneeded css files aren't created.

lib/converter.js

@@ -8,22 +8,22 @@ var glob = require('glob');
 function convert(logger, projectDir, options) {
 	return new Promise(function (resolve, reject) {
 		options = options || {};
-		
+
 		var lessFilesPath = path.join(projectDir, 'app/**/*.less');
 		var lessFiles = glob.sync(lessFilesPath).filter(function(fileName){
 			return fileName.indexOf("App_Resources") === -1;
-		});    
-    
+		});
+
 		var i = 0;
 		var loopLessFilesAsync = function(lessFiles){
 			parseLess(lessFiles[i], function(e){
 				if(e !== undefined){
 					//Error in the LESS parser; Reject promise
-					reject(Error(lessFiles[i] + ' LESS CSS pre-processing failed. Error: ' + e));  
+					reject(Error(lessFiles[i] + ' LESS CSS pre-processing failed. Error: ' + e));
 				}
-        
+
 				i++; //Increment loop counter
-        
+
 				if(i < lessFiles.length){
 					loopLessFilesAsync(lessFiles);
 				} else {
@@ -32,7 +32,7 @@ function convert(logger, projectDir, options) {
 				}
 			});
 		}
-    
+
 		loopLessFilesAsync(lessFiles);
 	});
 }
@@ -47,13 +47,20 @@ function parseLess(filePath, callback){
 		if(e) {
 			//Callback with error
 			callback(e);
-		}           
-
+			return;
+		}
+
+		if(!output.css) {
+			// No CSS to write to file, so just call callback without creating the file.
+			callback();
+			return;
+		}
+
 		var cssFilePath = filePath.replace('.less', '.css');
 
 		fs.writeFile(cssFilePath, output.css, 'utf8', function(){
 			//File done writing
 			callback();
-		});                       
+		});
 	});
 }

package.json

@@ -1,6 +1,6 @@
 {
   "name": "nativescript-dev-less",
-  "version": "0.0.9",
+  "version": "0.0.10",
   "description": "LESS CSS pre-processor for NativeScript projects.",
   "scripts": {
     "test": "exit 0",