fix(cli): Avoid AndroidManifest.xml not found error on add (#2400)

Author: jcesarmobile

cli/src/cordova.ts

@@ -414,7 +414,9 @@ ${applicationXMLEntries.join('\n')}
 ${rootXMLEntries.join('\n')}
 </manifest>`;
   content = content.replace(new RegExp(('$PACKAGE_NAME').replace('$', '\\$&'), 'g'), config.app.appId);
-  await writeFileAsync(manifestPath, content);
+  if (existsSync(manifestPath)) {
+    await writeFileAsync(manifestPath, content);
+  }
 }
 
 function getPathParts(path: string) {