Develop Reference

APK not running on real device - Manifest error?

I am new on app's code. My project runs perfectly on emulators. However the apk is not running in my samsung device. Checking it with the Android Studio Analyzer the line xmlns:android="http://schemas.android.com/apk/res/android" in the manifest.xml returns in red. It seems that something is wrong with my project Manifest. Any Help? My manifest is copied below.
<?xml version="1.0" encoding="utf-8"?>
<manifest
xmlns:android="http://schemas.android.com/apk/res/android"
android:versionCode="1"
android:versionName="1.0"
package="com.ferleecidade.a100dia11">
<uses-sdk
android:minSdkVersion="16"
android:targetSdkVersion="26" />
<application
android:theme="#ref/0x7f0f0005"
android:label="#ref/0x7f0e001f"
android:icon="#ref/0x7f0c0000"
android:debuggable="true"
android:exported="true"
android:allowBackup="true"
android:supportsRtl="true"
android:roundIcon="#ref/0x7f0c0002">
<activity
android:name="com.ferleecidade.a100dia11.MainActivity">
<intent-filter>
<action
android:name="android.intent.action.MAIN" />
<category
android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity
android:name="com.ferleecidade.a100dia11.MyCustomList" />
<meta-data
android:name="preloaded_fonts"
android:resource="#ref/0x7f020003" />
<meta-data
android:name="android.support.VERSION"
android:value="26.1.0" />
<meta-data
android:name="android.arch.lifecycle.VERSION"
android:value="27.0.0-SNAPSHOT" />
</application>
</manifest>

Help? Yes.
I am actively looking into this right now.
I don't believe your manifest is causing this or at least isn't the sole cause.
I have a project that I can run on my devices and emulators and deploy without a glitch.
I also get an error on the same line you do when analyzing the APK (Build/.Analyze APK).
If you hover your cursor over the red text you will see your error popup.
Mine says "URI is not registered (Settings | Languages and Frameworks | Schemes and DTDs)"
I performed a quick experiment.
created a brand new project in Android Studio with a single activity.
Cleaned the project.
Ran in an emulator.
Generated a signed APK.
Analyzed the APK and the error is there.
I suggest you try this.
This leads me to believe one of two things.
There is something wrong with my default project settings.
The error is being incorrectly reported by Android studio.
I hope this was useful.

Importing android projects that do not have android manifest file

I am currently busy in designing a custom view for my major project. I ran through custom view tutorial provided at developer.android.com . I downloaded the associated sharable project because it gets easy to handle and understand the mechanism of the application when source code is in front of you. To my surprise, the project only contains two folders, src and res and there was no android-manifest file. I tried normal import method, import from existing code and createing new project from exsting android code, no luck with any of the methods. Here the link for the project.
Can somebody please explain to me how I can get it working ?

Can somebody please explain to me how I can get it working ?
Create an empty Android project. Copy in the res/ and src/ from the ZIP file. Modify the manifest to point to the activity class that you copied from the ZIP file.

Create a new empty android project. Copy all resources and source files to your project folder.
http://developer.android.com/guide/topics/manifest/manifest-intro.html.
Goto AndroidManifest.xml define activities and permissions accordingly.
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="package name"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk
android:minSdkVersion="8"
android:targetSdkVersion="17" />
<application
android:allowBackup="true"
android:icon="#drawable/ic_launcher"
android:label="#string/app_name"
android:theme="#style/AppTheme" >
<activity
android:name="packagename.MainActivity"//your mainactivity
android:label="#string/app_name" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity
android:name="packagename.SecondActivity"
android:label="#string/app_name" >
<intent-filter>
<action android:name="packagename.SecondActivity" />
<category android:name="android.intent.category.DEFAULT" />
</intent-filter>
</activity>
</application>

Cannot upload an .apk file to the market

I have developed a new application for Android and my application is completed. It doesn't have any errors except for a few (2) harmless warnings. I created an .apk package using the tools available in ECLIPSE. It created a key and an .apk file. Created all right. BUT when I upload the .apk file I get an error telling that I cannot use the following in front of the package name :[com.android,com.goolge,android,com.example]
Below is my manifest details
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="android.Scheduler"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk android:minSdkVersion="7"/>
<uses-permission android:name="android.permission.CAMERA"/>
<uses-feature android:name="android.hardware.camera" />
<uses-feature android:name="android.hardware.camera.autofocus" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
<application
android:icon="#drawable/icon"
android:label=".SchedulerActivity" >
<activity
android:label="#string/app_name"
android:name=".SchedulerActivity" >
<intent-filter >
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity android:name=".addSubject"/>
<activity android:name=".Assignment"/>
<activity android:name=".CameraTake" android:screenOrientation="landscape"/>
<activity android:name=".view_details"/>
<activity android:name=".about"/>
<activity android:name=".help"/>
<activity android:name=".MyAlarmService"/>
<activity android:name=".Assignment_view"/>
<receiver android:name=".MyAlarmService" />
</application>
I tried some methods that are explained in here but it didn't work. Can anyone help me?

It is because of
package="android.Scheduler"
that you are getting this problem.
Notice in your file browser that you probably have src > android > scheduler
you cannot have android there.
all I can think of for a quick fix, is start a new project FROM that one, and in the setup set the package name to com.something.yourappname, but where "something" is do not include "google" or "android"

You have choosen incorrect package name "android.Scheduler", just change your package name.
For eg. if your name is "ravi" then choose package name something like this-
"com.ravi.scheduler".
Steps change package name (eclipse):-
Under your project folder just go to "src" then here you found "android.Scheduler" right click on it, choose "Refactor" -> "rename" & then write your desired package name like "com.ravi.scheduler" & click OK.
Now Rebuild/Run your project & then do application signing.
Now you are ready to upload your app to Google Play.

problem with installing app in the device

I have an android app. (built for 1.5) while installing it on my device it creates no error, but while running it, it says "the application is not installed in your phone"..
can any one help me...?
I have tried this installing after uninstalling it for many times...
Manifest file:
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.android.testapp"
android:versionCode="1"
android:versionName="1.0">
<application android:icon="#drawable/icon" android:label="#string/app_name">
<activity android:label="#string/app_name" android:name="WelcomeScreen">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity android:name="Untitled1"></activity>
<activity android:name="Welcome"></activity>
</application>
</manifest>

Have you got your package name correct? It will be looking for a different application if your package name in the Manifest does not match that of your project

Its an application error. In application there is an manifest file in which we pass two actions ACTION_LAUNCHER and ACTION_MAIN which is not write there thats why this application says "the application is not installed in your phone" please verify from the android developer of this application. IF you have manifest file of this please write down here. i will correct this.
If this answer is useful to you then please tick that this answer is useful to you.

Who or what tells you "is not installed"?
If you have a shortcut on the home screen, this may become stale and you can get this message.
Try going to the list of apps and starting it from there.
I also see potential that the "com.android.*" package you show is causing issues, as this package may be reserved (at least it is not good practice to use it).

Issue solved,
I just copied and deleted the below lines from the manifest file and pasted it again in the same place ...
I dont know how it solved the issue but it just solved it....
<application android:icon="#drawable/icon" android:label="#string/app_name">
<activity android:label="#string/app_name" android:name="WelcomeScreen">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>

Confusion why a magic 1.6 user cannot find app on market

I've published an app today mainly for my forum users to use, just a
very simple app that displays wallpapers derived from the forum.
Problem I'm having is one guy says it doesn't appear in the market,
and I've even sent him the APK to install manually but it fails.
My minimum SDK version is 4, I created it with the 1.6 SDK specified
so not sure why he can't see it or install it. He has a 1.6 Magic
handset.
So just wondering if anyone has any ideas, the app is called bocn
wallpaper, it uses internet and set-wallpaper permissions.. but I
wouldn't have thought the permissions were the problem...
My manifest is as follows:
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
android:versionCode="1"
android:versionName="1.0" package="net.dbws.bocnwallpaper">
<application android:icon="#drawable/launcher_icon"
android:label="#string/app_name">
<activity android:name=".Main"
android:label="#string/app_name">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<meta-data android:value="xxxxx" android:name="ADMOB_PUBLISHER_ID" />
</application>
<uses-sdk android:minSdkVersion="4" />
<uses-permission android:name="android.permission.INTERNET"></uses-permission>
<uses-permission android:name="android.permission.SET_WALLPAPER" />
</manifest>

Please, check the supported screens: http://developer.android.com/guide/topics/manifest/supports-screens-element.html
Android 1.6 has small-screens flag set default to false. May be it causes that the application is not seen on the device of the guy.