Fixes

README.md

@@ -1,3 +1,5 @@
 # npe_gerber
 
+![npm (scoped)](https://img.shields.io/npm/v/@nplayfair/npe_gerber)
+
 Requires node version 10 or higher

fileProcessor.js

@@ -17,7 +17,7 @@ const gerberFiles = [
  * @param {string} fileName
  * @returns {Promise} Promise object represents number of files extracted
  */
-function extractArchive(fileName) {
+async function extractArchive(fileName) {
   // Configure archive to use
   const archive =  new StreamZip({
     file: fileName,
@@ -57,7 +57,8 @@ async function getLayers(fileName) {
           // Some files were extracted
           resolve(layers);
         } else {
-          reject();
+          const errMsg = 'No files were extracted';
+          reject(errMsg);
         }
       })
       .catch(e => {
@@ -66,10 +67,10 @@ async function getLayers(fileName) {
   })
 }
 
-async function cleanupFiles() {
+function cleanupFiles() {
   try {
     let folder = path.join(__dirname, 'gerber', 'tmp');
-    await fs.emptyDirSync(folder);
+    fs.emptyDirSync(folder);
     console.log('Temp files removed.');
   } catch (err) {
     console.error(err);

index.js

@@ -11,7 +11,7 @@ const config = {
 }
 
 // Functions
-function gerberToImage(gerber, imageName) {
+async function gerberToImage(gerber, imageName) {
   return new Promise((resolve, reject) => {
     const destFile = path.join(__dirname, 'gerber', 'pcb', imageName);
     fileProc.getLayers(gerber)