title: How to find issue Android SDK 3.0 Error:(9, 5) error: resource android:attr/colorError not found
body: <p>How to find issue to this error when I did a make I have got this error message : 
  Error:(9, 5) error: resource android:attr/colorError not found</p>
  
  <p>Thing strange I've 2 build.gradle files :
  Here my build.gradle (Project:Projectname) File :</p>
  
  <pre><code>buildscript {
      repositories {
          jcenter()
      }
      dependencies {
          classpath 'com.android.tools.build:gradle:3.0.0'
  
          // NOTE: Do not place your application dependencies here; they belong
          // in the individual module build.gradle files
      }
  }
  
  allprojects {
      repositories {
          jcenter()
          maven {
              url "https://maven.google.com"
          }
      }
  }
  
  task clean(type: Delete) {
      delete rootProject.buildDir
  }
  </code></pre>
  
  <p>Here my build.gradle (Module:app) File :</p>
  
  <pre><code>apply plugin: 'com.android.application'
  android {
      compileSdkVersion 22
      defaultConfig {
          applicationId "org.acme.nfcedit"
          minSdkVersion 22
          targetSdkVersion 26
          versionCode 1
          versionName "1.0"
          testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
      }
      buildTypes {
          release {
              minifyEnabled false
              proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
          }
      }
      productFlavors {
      }
  }
  
  dependencies {
      implementation fileTree(include: ['*.jar'], dir: 'libs')
      implementation 'com.android.support:appcompat-v7:26.1.0'
      implementation 'com.android.support.constraint:constraint-layout:1.0.2'
      testImplementation 'junit:junit:4.12'
      androidTestImplementation 'com.android.support.test:runner:1.0.1'
      androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.1'
  }
  </code></pre>
  
  <p>This file appears /home/users/.gradle/caches/transforms-1/files-1.1/appcompat-v7-26.1.0.aar/c41e5bc4d98504dc222d4eca88ab6d1b/res/values-v26/values-v26.xml content </p>
  
  <pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt;
  &lt;resources&gt;
      &lt;style name="Base.Theme.AppCompat" parent="Base.V26.Theme.AppCompat"/&gt;
      &lt;style name="Base.Theme.AppCompat.Light" parent="Base.V26.Theme.AppCompat.Light"/&gt;
      &lt;style name="Base.V26.Theme.AppCompat" parent="Base.V26.Theme.AppCompat"&gt;
          &lt;!-- We can use the platform styles on API 26+ --&gt;
          &lt;item name="colorError"&gt;?android:attr/colorError&lt;/item&gt;
      &lt;/style&gt;
      &lt;style name="Base.V26.Theme.AppCompat.Light" parent="Base.V23.Theme.AppCompat.Light"&gt;
          &lt;!-- We can use the platform styles on API 26+ --&gt;
          &lt;item name="colorError"&gt;?android:attr/colorError&lt;/item&gt;
      &lt;/style&gt;
      &lt;style name="Base.V26.Widget.AppCompat.Toolbar" parent="Base.V7.Widget.AppCompat.Toolbar"&gt;
          &lt;item name="android:touchscreenBlocksFocus"&gt;true&lt;/item&gt;
          &lt;item name="android:keyboardNavigationCluster"&gt;true&lt;/item&gt;
      &lt;/style&gt;
      &lt;style name="Base.Widget.AppCompat.Toolbar" parent="Base.V26.Widget.AppCompat.Toolbar"/&gt;
  &lt;/resources&gt;
  </code></pre>
  
  <p>I don't know what's mmeaning <code>?android:attr/colorError</code></p>
  
  <p>Thanks</p>