fix gradle check

package.json

@@ -1,6 +1,6 @@
 {
   "name": "react-native-update-cli",
-  "version": "1.30.4",
+  "version": "1.31.0",
   "description": "Command tools for javaScript updater with `pushy` service for react native apps.",
   "main": "index.js",
   "bin": {

src/bundle.js

@@ -177,7 +177,9 @@ async function checkGradleConfig() {
   let crunchPngs;
   try {
     const gradleConfig = await g2js.parseFile('android/app/build.gradle');
+    crunchPngs = gradleConfig.android.buildTypes.release.crunchPngs;
     const projectConfig = gradleConfig['project.ext.react'];
+    if (projectConfig) {
       for (const packagerConfig of projectConfig) {
         if (
           packagerConfig.includes('enableHermes') &&
@@ -187,7 +189,7 @@ async function checkGradleConfig() {
           break;
         }
       }
-    crunchPngs = gradleConfig.android.buildTypes.release.crunchPngs;
+    }
   } catch (e) {}
   return {
     enableHermes,
@@ -609,7 +611,6 @@ export const commands = {
     const { version, major, minor } = getRNVersion();
 
     console.log('Bundling with react-native: ', version);
-    printVersionCommand();
 
     await runReactNativeBundleCommand(
       bundleName,

src/versions.js

@@ -134,7 +134,9 @@ export const commands = {
     let minPkgVersion = options.minPackageVersion;
     let maxPkgVersion = options.maxPackageVersion;
     let rollout = options.rollout;
-    if (rollout !== undefined) {
+    if (rollout === undefined) {
+      rollout = null;
+    } else {
       try {
         rollout = parseInt(rollout);
       } catch (e) {