title: Android Resource issues after upgrading to Xamarin Forms 2.0
body: <p>I have recently upgraded 2 machines from Xamarin Forms 1.x to 2.0. One machine is OK and Xamarin Forms projects build fine for Android. The other machine is having dreadful issues.</p>
  
  <p>We have tried uninstalling and re-installing everything - Xamarin, Android SDK, all NuGet packages - the lot - but get the same error messages.</p>
  
  <p>It seems to be related to Android app compat stuff.</p>
  
  <p>Steps to replicate are:</p>
  
  <ol>
  <li>Create new Forms 1.3 project - compile and run - all OK </li>
  <li>Upgrade project from Forms 1.3 to 2.0 - issues</li>
  </ol>
  
  <p>Here are the errors:</p>
  
  <pre><code>2&gt;d:\Documents\Visual Studio 2015\Projects\App4\App4\App4.Droid\Resources\Resource.Designer.cs(1290,119,1290,143): error CS0117: 'Resource.Styleable' does not contain a definition for 'SnackbarLayout_elevation'
  2&gt;d:\Documents\Visual Studio 2015\Projects\App4\App4\App4.Droid\Resources\Resource.Designer.cs(1291,130,1291,165): error CS0117: 'Resource.Styleable' does not contain a definition for 'SnackbarLayout_maxActionInlineWidth'
  2&gt;d:\Documents\Visual Studio 2015\Projects\App4\App4\App4.Droid\Resources\Resource.Designer.cs(1308,104,1308,113): error CS0117: 'Resource.Styleable' does not contain a definition for 'TabLayout'
  2&gt;d:\Documents\Visual Studio 2015\Projects\App4\App4\App4.Droid\Resources\Resource.Designer.cs(1309,118,1309,141): error CS0117: 'Resource.Styleable' does not contain a definition for 'TabLayout_tabBackground'
  2&gt;d:\Documents\Visual Studio 2015\Projects\App4\App4\App4.Droid\Resources\Resource.Designer.cs(1310,120,1310,145): error CS0117: 'Resource.Styleable' does not contain a definition for 'TabLayout_tabContentStart'
  2&gt;d:\Documents\Visual Studio 2015\Projects\App4\App4\App4.Droid\Resources\Resource.Designer.cs(1311,115,1311,135): error CS0117: 'Resource.Styleable' does not contain a definition for 'TabLayout_tabGravity'
  2&gt;d:\Documents\Visual Studio 2015\Projects\App4\App4\App4.Droid\Resources\Resource.Designer.cs(1312,122,1312,149): error CS0117: 'Resource.Styleable' does not contain a definition for 'TabLayout_tabIndicatorColor'
  2&gt;d:\Documents\Visual Studio 2015\Projects\App4\App4\App4.Droid\Resources\Resource.Designer.cs(1313,123,1313,151): error CS0117: 'Resource.Styleable' does not contain a definition for 'TabLayout_tabIndicatorHeight'
  2&gt;d:\Documents\Visual Studio 2015\Projects\App4\App4\App4.Droid\Resources\Resource.Designer.cs(1314,116,1314,137): error CS0117: 'Resource.Styleable' does not contain a definition for 'TabLayout_tabMaxWidth'
  2&gt;d:\Documents\Visual Studio 2015\Projects\App4\App4\App4.Droid\Resources\Resource.Designer.cs(1315,116,1315,137): error CS0117: 'Resource.Styleable' does not contain a definition for 'TabLayout_tabMinWidth'
  2&gt;d:\Documents\Visual Studio 2015\Projects\App4\App4\App4.Droid\Resources\Resource.Designer.cs(1316,112,1316,129): error CS0117: 'Resource.Styleable' does not contain a definition for 'TabLayout_tabMode'
  2&gt;d:\Documents\Visual Studio 2015\Projects\App4\App4\App4.Droid\Resources\Resource.Designer.cs(1317,115,1317,135): error CS0117: 'Resource.Styleable' does not contain a definition for 'TabLayout_tabPadding'
  2&gt;d:\Documents\Visual Studio 2015\Projects\App4\App4\App4.Droid\Resources\Resource.Designer.cs(1318,121,1318,147): error CS0117: 'Resource.Styleable' does not contain a definition for 'TabLayout_tabPaddingBottom'
  2&gt;d:\Documents\Visual Studio 2015\Projects\App4\App4\App4.Droid\Resources\Resource.Designer.cs(1319,118,1319,141): error CS0117: 'Resource.Styleable' does not contain a definition for 'TabLayout_tabPaddingEnd'
  2&gt;d:\Documents\Visual Studio 2015\Projects\App4\App4\App4.Droid\Resources\Resource.Designer.cs(1320,120,1320,145): error CS0117: 'Resource.Styleable' does not contain a definition for 'TabLayout_tabPaddingStart'
  2&gt;d:\Documents\Visual Studio 2015\Projects\App4\App4\App4.Droid\Resources\Resource.Designer.cs(1321,118,1321,141): error CS0117: 'Resource.Styleable' does not contain a definition for 'TabLayout_tabPaddingTop'
  2&gt;d:\Documents\Visual Studio 2015\Projects\App4\App4\App4.Droid\Resources\Resource.Designer.cs(1322,125,1322,155): error CS0117: 'Resource.Styleable' does not contain a definition for 'TabLayout_tabSelectedTextColor'
  2&gt;d:\Documents\Visual Studio 2015\Projects\App4\App4\App4.Droid\Resources\Resource.Designer.cs(1323,122,1323,149): error CS0117: 'Resource.Styleable' does not contain a definition for 'TabLayout_tabTextAppearance'
  2&gt;d:\Documents\Visual Studio 2015\Projects\App4\App4\App4.Droid\Resources\Resource.Designer.cs(1324,117,1324,139): error CS0117: 'Resource.Styleable' does not contain a definition for 'TabLayout_tabTextColor'
  2&gt;d:\Documents\Visual Studio 2015\Projects\App4\App4\App4.Droid\Resources\Resource.Designer.cs(1331,110,1331,125): error CS0117: 'Resource.Styleable' does not contain a definition for 'TextInputLayout'
  2&gt;d:\Documents\Visual Studio 2015\Projects\App4\App4\App4.Droid\Resources\Resource.Designer.cs(1332,123,1332,151): error CS0117: 'Resource.Styleable' does not contain a definition for 'TextInputLayout_android_hint'
  2&gt;d:\Documents\Visual Studio 2015\Projects\App4\App4\App4.Droid\Resources\Resource.Designer.cs(1333,132,1333,169): error CS0117: 'Resource.Styleable' does not contain a definition for 'TextInputLayout_android_textColorHint'
  2&gt;d:\Documents\Visual Studio 2015\Projects\App4\App4\App4.Droid\Resources\Resource.Designer.cs(1334,123,1334,151): error CS0117: 'Resource.Styleable' does not contain a definition for 'TextInputLayout_errorEnabled'
  2&gt;d:\Documents\Visual Studio 2015\Projects\App4\App4\App4.Droid\Resources\Resource.Designer.cs(1335,130,1335,165): error CS0117: 'Resource.Styleable' does not contain a definition for 'TextInputLayout_errorTextAppearance'
  2&gt;d:\Documents\Visual Studio 2015\Projects\App4\App4\App4.Droid\Resources\Resource.Designer.cs(1336,131,1336,167): error CS0117: 'Resource.Styleable' does not contain a definition for 'TextInputLayout_hintAnimationEnabled'
  2&gt;d:\Documents\Visual Studio 2015\Projects\App4\App4\App4.Droid\Resources\Resource.Designer.cs(1337,129,1337,163): error CS0117: 'Resource.Styleable' does not contain a definition for 'TextInputLayout_hintTextAppearance'
  </code></pre>