Error installing APK INSTALL_PARSE_FAILED_MANIFEST_MALFORMED - Android

I have this error that prevents me from installing apk on any device:

Installation error: INSTALL_PARSE_FAILED_MANIFEST_MALFORMED

Here is my manifest:

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.example"
    android:versionCode="2"
    android:versionName="1.0.1" >

    <uses-permission android:name="android.permission.INTERNET" />
    <uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
    <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
    <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
    <uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />
    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
    <uses-permission android:name="android.permission.READ_PHONE_STATE" />
    <uses-permission android:name="android.permission.GET_TASKS" />

    <uses-sdk
        android:minSdkVersion="8"
        android:targetSdkVersion="17" />

    <application
        android:allowBackup="true"
        android:icon="@drawable/ic_launcher"
        android:label="@string/app_name"
        android:theme="@android:style/Theme.Light.NoTitleBar" >
        <activity
            android:name="com.example.activities.MainTabs"
            android:label="@string/app_name" >
            <intent-filter>
                <action android:name="com.apphance.android.LAUNCH" />

                <category android:name="android.intent.category.DEFAULT" />
            </intent-filter>
        </activity>
        <activity
            android:name="com.example.activities.TourInfo"
            android:label="@string/title_activity_tour_info" >
        </activity>
        <activity
            android:name="com.example.TestActivity"
            android:label="@string/title_activity_test" >
        </activity>
        <activity
            android:name="com.example.activities.DiscoverTab"
            android:label="@string/title_activity_discover_tab_group" >
        </activity>
        <activity
            android:name="com.example.activities.MyToursTab"
            android:label="@string/title_activity_my_tours_tab_group" >
        </activity>
        <activity
            android:name="com.example.activities.SettingsTab"
            android:label="@string/title_activity_settings_tab_group" >
        </activity>
        <activity
            android:name="com.example.activities.Discover"
            android:label="@string/title_activity_discover" >
        </activity>
        <activity
            android:name="com.example.activities.MyTours"
            android:label="@string/title_activity_my_tours" >
        </activity>
        <activity
            android:name="com.example.activities.Settings"
            android:label="@string/title_activity_settings" >
        </activity>
        <activity
            android:name="com.example.activities.Topics"
            android:label="@string/title_activity_topics" >
        </activity>
        <activity
            android:name="com.example.activities.Places"
            android:label="@string/title_activity_places" >
        </activity>

        <activity-alias
            android:name="com.example.ApphanceLauncherActivity"
            android:targetActivity="com.apphance.android.LauncherActivity" >
            <intent-filter>
                <action android:name="android.intent.action.MAIN" >
                </action>

                <category android:name="android.intent.category.LAUNCHER" >
                </category>
            </intent-filter>
        </activity-alias>

        <uses-library android:name="com.google.android.maps" />

        <activity
            android:name="com.apphance.android.LauncherActivity"
            android:theme="@android:style/Theme.Translucent.NoTitleBar" >
        </activity>
        <activity
            android:name="com.apphance.android.ui.LoginActivity"
            android:launchMode="singleInstance" >
        </activity>
        <activity
            android:name="com.apphance.android.ui.TestCycleActivity"
            android:launchMode="singleInstance" >
        </activity>
        <activity
            android:name="com.apphance.android.ui.ProblemActivity"
            android:configChanges="orientation"
            android:launchMode="singleInstance" >
        </activity>
    </application>

    <instrumentation
        android:name="com.apphance.android.ApphanceInstrumentation"
        android:targetPackage="com.example" >
    </instrumentation>

</manifest>

      

        
        
        
      

    

PS: I am using the Apphance API and this has never given me a problem.

Edit: I run once a project with the same package name by mistake, which caused some errors in the second project, so I changed it. Is it related to a bug in this project?

Any idea please?