Why Isn't -Moz-Animation Working

Why my JavaScript isn’t working with my html 5?

Seems like you have a typo.

try:
<script src="Web.js"></script>

When you are using a JavaScript file, you should NOT use HTML tags:

change your web.js file from:

<script>
    alert('Hello, World');
</script>

to

alert('Hello, World');

Google Play - Can't install. Try again, and if it still doesn't work, see common ways to fix the problem

Issue was with the following line in the manifest:

android:sharedUserId="XXX..shared"

I added this since the previous release to experiment with my suite of apps communicating with one another, but had forgotten to remove this before my release. This sharedUserId is typically used to group apps that are signed with the same cert/developer so that they can share info with one another. However, the flag has now been deprecated, and if you need your apps to communicate with one another, there are far better ways to do this without breaking your app. Read more about sharedUserID here (but DON'T implement it, whatever you do!):

https://developer.android.com/guide/topics/manifest/manifest-element

App updates will fail for users if the sharedUserId is added or doesn't match the current installed version. Google play will just hang or show a generic error that isn't useful to your users, ending up with confusion and a bunch of 1 star reviews.

Warning: removing the sharedUserId can be just as problematic as adding it. Any users that downloaded the app after you added it (or reinstalled your app during this time) will now get the same error when trying to update to a version where you removed it. The only way for them to fix is to uninstall/reinstall the app again. Lucky for me, I worked out this root cause within a few days, so I only have to manage a few days worth of new users who will experience this issue now, but if this had gone on any longer, you could be looking at a large number of users with the update issue.

why the unless function in perl isn't working

Break it down.

it allows more than 600 hrs for females.

Let's try some test data.

$gender = "f";
$hours = 750;

Feed that into your test:

unless($gender ne "f" && $hours>=600){

Replace the variables with the values

unless("f" ne "f" && 750>=600){

Convert the tests to booleans

unless(false && true){

Resolve the logical operator

unless(false);

Which means it runs the expression.

---

You're confusing yourself with a double negative.

Try to simplify the logic by splitting it apart and avoiding negatives.

my $allowedHours = 500;
if ($gender eq "f") {
    $allowedHours = 600;
}
if ($hours <= $allowedHours) {
    # report
} else {
    # error
}

Is there a reason why this flutter code isn't working?

You've put the _incrementeCounter varaible into state class. Every time you called setState, state re built and your counter variable reset to initial value.

Move the _incrementCounter field to the MyHomePage widget and access it from the state class like widget._incrementCounter. It will work.
Full code:

void main() {
  runApp(MyApp());
}

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      home: MyHomePage(),
    );
  }
}

class MyHomePage extends StatefulWidget {
  int _incrementCounter = 0;

  @override
  _MyHomePageState createState() => _MyHomePageState();
}

class _MyHomePageState extends State<MyHomePage> {
  @override
  Widget build(BuildContext context) {
    void _increment() {
      setState(() {
        widget._incrementCounter++;
      });
    }

    return Scaffold(
      appBar: AppBar(
        title: Text('My First App!'),
        backgroundColor: Colors.red[800],
      ),
      body: Container(
        child: Center(
          child: Column(
            mainAxisAlignment: MainAxisAlignment.center,
            children: <Widget>[
              Text(
                'You pressed the button this many times:',
                style: TextStyle(
                  fontSize: 18,
                ),
              ),
              SizedBox(height: 10),
              Text(
                '${widget._incrementCounter}',
                style: TextStyle(
                  fontSize: 48,
                ),
              ),
            ],
          ),
        ),
      ),
      floatingActionButton: FloatingActionButton(
        onPressed: _increment,
        tooltip: 'Increment Counter',
        backgroundColor: Colors.red[800],
        child: Icon(
          Icons.add,
        ),
      ),
    );
  }
}

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