This is the entire activity_main.xml
<FrameLayout
android:id="@+id/fragment_container"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_above="@id/bottom_navigation"
/>
<android.support.design.widget.BottomNavigationView
android:id="@+id/bottom_navigation"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:background="@color/colorPrimary"
app:itemIconTint="@color/colorNavIcon"
app:itemTextColor="@color/colorNavText"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:menu="@menu/bottom_navigation" />
It shows the error of Process 'command 'Sdk\build-tools\26.0.1\aapt.exe'' finished with non-zero exit value 1 I tried to clean and rebuild the project but just cleaning it would fail on that error my activity_main.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
android:paddingBottom="@dimen/activity_vertical_margin"
android:orientation="vertical"
tools:context="com.ibm.watson.developer_cloud.android.myapplication.MainActivity">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/target_language"
android:textStyle="bold" />
<RadioGroup
android:id="@+id/target_language"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal">
<RadioButton
android:id="@+id/spanish"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/spanish"
android:checked="true" />
<RadioButton
android:id="@+id/french"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/french" />
<RadioButton
android:id="@+id/italian"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/italian" />
</RadioGroup>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content">
<EditText
android:id="@+id/input"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="1"
android:hint="@string/input_hint" />
<ImageButton
android:id="@+id/mic"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="@drawable/ic_mic"
android:contentDescription="@string/microphone" />
</LinearLayout>
<Button
android:id="@+id/translate"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="@string/translate"
android:enabled="false" />
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content">
<ImageButton
android:id="@+id/play"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="@drawable/ic_play"
android:contentDescription="@string/play" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="bottom"
android:text="@string/translation_label"
android:textStyle="bold" />
</LinearLayout>
<TextView
android:id="@+id/translated_text"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal"
>
<Button
android:id="@+id/gallery_button"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Gallery"
/>
<Button
android:id="@+id/camera_button"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Camera"
/>
</LinearLayout>
<TextView
android:id="@+id/resultTextView"
android:layout_width="match_parent"
android:layout_height="@dimen/edittext_height_100dp"
android:layout_margin="8dp"
android:textSize="@dimen/textSize20sp"
android:padding="@dimen/padding8dp"
android:textColor="@color/red"
android:textColorHint="@color/red"
android:hint="@string/your_input_speech_will_be_displayed_here"
android:background="@drawable/rounded_edittext"/>
<FrameLayout
android:id="@+id/fragment_container"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_above="@id/bottom_navigation"
/>
<android.support.design.widget.BottomNavigationView
android:id="@+id/bottom_navigation"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:background="@color/colorPrimary"
app:itemIconTint="@color/colorNavIcon"
app:itemTextColor="@color/colorNavText"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:menu="@menu/bottom_navigation" />
</LinearLayout>
my bottom_navigation.xml
<?xml version="1.0" encoding="utf-8"?>
<menu xmlns:android="http://schemas.android.com/apk/res/android">
<item
android:id="@+id/nav_dialer"
android:icon="@drawable/ic_dialerlightblue"
android:title="Dial"/>
<item
android:id="@+id/nav_contacts"
android:icon="@drawable/ic_people"
android:title="Contacts"/>
<item
android:id="@+id/nav_transcripts"
android:icon="@drawable/ic_transcripts"
android:title="Transcripts"/>
<item
android:id="@+id/nav_settings"
android:icon="@drawable/ic_tapnavsettings"
android:title="Settings"/>
</menu>
with this whole code, I cannot compile it and prompts that error.