I'm just learning on Android and unfortunately, I got a mistake about "Multiple root tags" and I don't know what to do with it. I tried to move "manifest" to the bottom but it didn't work.
This is my code:
You need to move the <activity> section inside the <manifest> like the following.
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
package="com.example.monika">
<dist:module dist:instant="true" />
<activity> .... </activity>
<activity> .... </activity>
<activity> .... </activity>
</manifest>
Activities live inside manifest tag. Also, you are missing an application tag.
<manifest ... >
<application ... >
<activity android:name="com.example.myapp.MainActivity" ... >
</activity>
</application>
</manifest>
For more understanding of the manifest file:
Please refer: https://developer.android.com/guide/topics/manifest/manifest-intro
Also you can play around the google code samples that help you understand android coding.
https://developer.android.com/samples
Your manifest looks right now. What error are you getting with manifest?
Please be clear in descriptions.
I am getting an error which reads The activity 'MainActivity' is not declared in AndroidManifest.xml
What is the problem here?
I got this error when moving a lot of files, to fix just resync your gradle files.
File->Sync Project with Gradle Files
Try to go to File->Invalidate Caches / Restart and choose invalidate and restart ,it worked for me
Sometimes when moving or renaming files, you can have broken XML files. My case that the ic_launcher.xml was corrupt. I regenerated that and worked just fine.
Check every XML in your proyect.
You are most likely just missing the below from your AndroidManifest:
<activity
android:name=".MainActivity"
android:label="#string/app_name"
Here is a full example of an AndroidManifest:
<?xml version="1.0" encoding="utf-8"?>
<manifest
xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.pejner.myapplication">
<application
android:allowBackup="true"
android:icon="#mipmap/ic_launcher"
android:label="#string/app_name"
android:supportsRtl="true"
android:theme="#style/AppTheme">
<activity
android:name=".MainActivity"
android:label="#string/app_name"
android:theme="#style/AppTheme.NoActionBar">
<intent-filter>
<action android:name="android.intent.action.MAIN"/>
<category android:name="android.intent.category.LAUNCHER"/>
</intent-filter>
</activity>
</application>
</manifest>
this happened for me when my laptop suddenly shut down when working with project. if you see your activity declaration in your manifest, do not open any xml files. they maybe broken and corrupt after opening files.
so do these steps:
delete all .iml files from your project
go to Files => invalidate cache / Restart
Rebuild your project gradle
finally if problem still exists, go to Files => Sync project with gradle files
https://stacklearn.ir
This can be only two reason,
the bold one, missing extend statement
class MainActvity extends AppCompatActivity
or
you are using a wrong package name to register your activity so just in this case use ALT+Space then studio will show the options itself.
All of my XML file were cut in half for some reason, I'm not sure when it happened (I use Git VCS, so maybe that). I had to go through each of them and restore the code.
It have three ways to resolve
1:-
Go File->Invalidate Caches / choose invalidate and restart ,it works
2:-
If you make MainActivity make sure you have onCreate method in it and extend with AppCompatActivity .
3:- And last option sync project with Gradle file
Follow these steps:
File => Invalidate Caches / Restart...
Files => Sync project with gradle files
If the steps above don't work, write:
com.example.(project name).MainActivity
It should work, worked for me.
For those cases the you recently changed the android:allowBackup settings, make sure you also set the tools:replace="android:allowBackup" in case some of your dependency have it declared in them to override it. I wouldn't know this solution until I manually execute Gradle > app > cleanbuild > lintFix
The exact error I received was:
Error: Attribute application#allowBackup value=(false) from AndroidManifest.xml:41:9-36
is also present at [com.kaopiz:kprogresshud:1.2.0] AndroidManifest.xml:12:9-35 value=(true).
Suggestion: add 'tools:replace="android:allowBackup"' to element at AndroidManifest.xml:39:5-254:19 to override.
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.YOURPAKAGE">
<application
android:allowBackup="true"
android:icon="#mipmap/ic_launcher"
android:label="#string/app_name"
android:roundIcon="#mipmap/ic_launcher_round"
android:supportsRtl="true"
android:theme="#style/Theme.YOURPAKAGE">
<activity
android:name=".MainActivity"
android:exported="true">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
</manifest>
NOTE:
Replace your AndroidManifest.xml file code with the above code and you just have to change the name of your package at those places where I have mentioned (YOURPAKAGE) hopefully the problem will be solved
replace in your AndroidManifest.xml
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.android.justjava">
<application
android:allowBackup="true"
android:icon="#mipmap/ic_launcher"
android:label="#string/app_name"
android:supportsRtl="true"
android:theme="#style/AppTheme">
<activity android:name=".MainActivity">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
</manifest>
You should try this
<activity
android:name="com.example.stockquote.StockInfoActivity"
android:label="#string/app_name"
/>
For more detail you can check hereActivity declare
Thanks everyone for taking the time out to help a beginner.
I found out that I had somehow misspelled the Package in MainActivity.java
When I corrected it the error was gone.
Thank you all.
I was getting an error "The activity 'MainActivity' is not declared in AndroidManifest.xml", even though it was correct in the manifest file.
My problem was that when I created the project I had to mark the item "Use AndroidX artifacts".
If you see that error occur after upgrading versions of IntelliJ IDEA or Android Studio, or after Generating a new APK, you may need to refresh the IDE's cache.
File -> Invalidate Caches / Restart...
I was working on my project suddenly my laptop restarts i tried lot of methods but i was not able to fix it.
But at the end i did it
do these steps and let me know it is working or not?
1. File > Invalidate Cache and restart the the android studio
2. Build > Clean Project and then Rebuild project
3. Sync project with gradle files
if it is still showing you error try these steps
1. Create new activity
Remember to clink on checkBox Launcher Activity
Hope this will Fix your problem
In the end go to AndroidManifest.xml and change New activity Default to previous activity
In my case, none of the answers helped. Luckily, I remembered that I added a variable in build.gradle, which I tried to access from MainActivity.
Problem was that this new variable wasn't present in AndroidManifest.xml. Once I added the variable to AndroidManifest.xml, the problem was solved.
This is an odd one. For me I had to open Edit Configurations (run configuration) and select <no module> under the Module drop-down. Then reselect my project under the Module drop-down and Apply. It the built and ran just fine.
Had the same problem with a project which I just downloaded the starter code for
an app , everything looked fine in the AndroidManifest.xml , I just deleted the com.example.android.(yourappname).MainActivity and wrote .dMainActivity and it worked.
I am following he tutorial from this site: http://developer.android.com/training/basics/firstapp/creating-project.html, but when I run the default program in eclipse when an android project is created, it gives me the error R could not be found. To fix this, I commented out the lines with R and ran it again, but now it gives me the error: Could not find MyFirstApp.apk!... I have tried all other solutions on this site, but none of them work. If anybody knows how to fix this, please let me know!
here is my manifest file:
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.myfirstapp"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk
android:minSdkVersion="8"
android:targetSdkVersion="19" />
<application
android:allowBackup="true"
android:icon="#drawable/ic_launcher"
android:label="#string/app_name"
android:theme="#style/AppTheme" >
<activity
android:name="com.example.myfirstapp.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>
</application>
</manifest>
When your .R class could not be found, there is an error in your project - commenting out the lines with the .R class does not fix the problem.
Perhaps you just have to clean your workspace (Project > Clean...) or delete the bin and gen folder in your project, they should be rebuilt automatically.
Look at the Problems tab next to the Console tab where you get the errors and take a look at the messages.
when I had originally installed the android sdk it installed to some folder in my filesystem. I moved the SDK manager to a folder on my desktop, and installed updates through there. I had to change my android path to that folder, and everything fixed! Thanks for your help though, it was much appreciated.
I have an project, build with Gradle in Android Studio v 0.3.2.
My project has dependencies to two other modules(android library). The project structure is well defined with build.gradle files.
The problem is... when i run the project on an Android device, i get installed 3 apk's on my device. One is the main project(the only right one) and the other two are from the imported modules(theese two i don't want to get installed).
How can i achieve this? Or what i'm doing wrong?
Project Structure:
MyLibModule
MainProject
MainProject->libraries->MyOtherModule
Where MyLibModule is at the same path as the Main project, because i also need this module in a other project.
Just to be clear: The whole project build's OK, all dependencies are OK, but why do i get 3 APK's on my device?
After a whole day struggling with this problem, i located the cause of this strange behaviour. The problem was the manifest of library module. Before i switched to Android studio i used Eclipse. And i had a testActivity declared in the manifest of the library project. Removing all test activities from the manifest's of my library modules solved the problem. Now Android Studio installs only the MainProject apk.
Some code:
The manifest of MyLibModule:
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.test.mylibmodule"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk android:minSdkVersion="7"/>
<application>
<activity
android:name=".TestActivity"
android:label="#string/app_name">
</activity>
</application>
</manifest>
Changed to:
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.test.mylibmodule"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk android:minSdkVersion="7"/>
<application>
</application>
</manifest>
....And the same for MyOtherModule.
NOTE: the empty application node must stay in the manifest, to avoid build errors.
remove the intent-filter from your library's launch activity
<application>
<activity android:name=".MainActivity">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
Changed to
<application>
<activity android:name=".MainActivity"/>
</application>
It's because your libraries are defined in their build.gradle files as being applications instead of libraries. Look for this line:
apply plugin: 'android'
and replace it with:
apply plugin: 'android-library'
You may need to make other adjustments to the buildfile as well because not everything that applies to applications can be specified in a library buildfile. See http://tools.android.com/tech-docs/new-build-system/user-guide#TOC-Library-projects for more information.
I'm a beginner when it comes to both Java and android SDK, and I had some issues that I dealt with to finally be able to run my app, and than I get this error and I just can't figure it out.
So this is the Console:
[2013-09-17 19:59:23 - AndroidFlow] Installation error:INSTALL_PARSE_FAILED_MANIFEST_MALFORMED
[2013-09-17 19:59:23 - AndroidFlow] Please check logcat output for more details.
[2013-09-17 19:59:23 - AndroidFlow] Launch canceled!
(Sorry for text fragmentation, it doesn't fit in the same line)
And heres the logcat snap:
Also, heres the Manifest file:
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.domiq.androidapp"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk
android:minSdkVersion="16"
android:targetSdkVersion="18" />
<application
android:allowBackup="true"
android:icon="#drawable/ic_launcher"
android:label="#string/app_name"
android:theme="#style/AppTheme" >
<service android:enabled="true"
android:exported="false"
android:isolatedProcess="false"
android:label="flow service"
android:name="com.domiq.androidapp.appservice"
android:permission="string"
android:process="string" >
</service>
<activity
android:name="com.domiq.androidappp"
android:label="androidapp" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
Any suggestions? I've tried a lot of stuff (as you can see nothing is in capital letters etc...)
In the future, copy the text out of LogCat (select the lines, press <Ctrl>-<C> to copy) rather than use screenshots.
That being said, here are some obvious problems:
Your android:name in the <activity> is invalid, as it does not have the name of your Activity class.
The one that is causing your error is the android:process attribute in the <service> element, which is malformed and unnecessary.
I am skeptical that the android:name in your <service> points to a Service implementation class.
I strongly encourage you to get rid of android:isolatedProcess and android:permission, as what you have will probably not work the way you expect.
Are you sure your Activity's name is com.domiq.androidappp. This looks to be the package name.
So change below line to the Activity class Name. Use the Eclipse Manifest editor rather than adding manually
<activity
android:name="com.domiq.androidappp"
You need to remove the android:permission="string" and android:permission="string". It looks like you just copied pasted that incorrectly. You are supposed to replace "string" with the proper values.
Also your android:name under your Activity should be the Activity name, e.g. android:name="com.domiq.androidapp.MyActivity".