First Launch Take Long Time (Classloader Referenced Unknown Path)

ClassLoader referenced unknown path

It's been few weeks now and not sure if you have figured it out or not.

I ran into an issue where my app wouldn't connect to the localhost web service from my device. It worked fine on the emulator.
My console was showing the same warning message as your's.

Here are my troubleshooting steps to fix it:

1. Uninstalled the app from my phone
2. Deleted the directories created by
   this app earlier, on my phone
3. Disabled instant-run
4. Restarted my phone

Having failed to fix it even after these steps, I looked at my phone connections and found that the wi-fi was disabled. Enabled the wi-fi and enabled instant-run and the happy days are back.

Lesson learnt is that the warning message you are seeing is irrelevant in my case.

Hope this helps.

Android app launch first time launch is taking more time even some time 30 sec and more

Finally found answer after more then 16 days all thanks to you @Amir. Correct answer is to disabling instant run then run. There is a strange issue with newly released Android Studio 2.0 & 2.1. first time of launching application take longer than usual this issue happens only in debug mode and not effect your released APK.

Settings/Preferences(Mac) → Build, Execution, Deployment → Instant Run and uncheck Instant Run

Android App is taking too much time to load for the first time after installation, showing blank screen

Uninstall the apk, turn off Instant Run (if enabled) - File>Settings>Build,Deployment>Instant Run and try runnning/installing again

Android Instant Run First-time takes too much time to launch app after installed

Hello I am also facing this issue when i update my Android Studio 2.0

This issue is resolved by changing minSDKVersion from 14 to 16 and change the gradle version to 2.4. This will work fine.

Time taken on first run with AS 2.0 and gradle 2.0

there seems some issue with it, whenever i am running my app for first
time, it is showing while/black screen for 10-15 seconds.

I guess you have issue of Cold Start in your application.

Cold Start :

When a user launches an application, Android creates a new process
that, during it charge, shows a black/white screen which is built with
the application theme, or the theme of the activity that is the entry
point.

This load can be increased if our application is complex and
overwrites the application object, which is normally used to
initialize the analytics, error reporters, etc.

Solution :

1. Specify android:windowBackground in your application theme.
2. Add Splash screen to your app.

For detailed information please check, http://saulmm.github.io/avoding-android-cold-starts

Thanks.

Android app first start is very slow and systrace shows 30 seconds of bindApplication

it is problem of instant run.
i had once this kind of problem and i solve if by disable instant run.
here is same question and you can find your answer in comment of question.

First launch take long time (ClassLoader referenced unknown path)

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