Android - Activity Not Found Exception

Question

I am using startActivity to call another Activity and I get the \"Activity Not Found Exception\". Here is my code:

  TextView textView = (TextView) itemClic         


        

Answer 1

Try adding activity to AndroidManifest.xml

<activity android:name=".MyActivity" />

Answer 2

Not only need you add your Activity in AndroidMainifest.xml like this:

<activity 
        android:name=".MyActivity"
       ></activity>

but also you should confirm your package path.

For example,my activity is in com.demo package. The head of the AndroidMainifest should write the same package path,like this:

<manifest xmlns:android="http://schemas.android.com/apk/res/android"
   package="com.demo"
   android:versionCode="1"
   android:versionName="1.0" >

Answer 3

<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.salvopaverani.databes"
android:versionCode="1"
android:versionName="1.1" >

At manifest file, i try to change the android:versionName from 1.0 to 1.1 and everything OK.

Answer 4

I was trying to start SERVICE with startActivity(intent) and the same exception popped out. To run SERVICE, use startService(intent)

Answer 5

In addition to the answer which Unfrog has given.

One way to get the NullPointerException is to execute a code which is referring to the view parts before the setContentView().

Answer 6

Stuck with the same error for an hour only to realize that I have to clean and build again. Apparently, some times changes in xml do not reflect until we clean and rebuild.