<android>Could not resolve all files for configuration ':app:debugCompileClasspath'.

报错：

Error:FAILURE: Build failed with an exception.

* What went wrong:
Could not resolve all files for configuration ':app:debugCompileClasspath'.
> Could not download parse-android.jar (com.parse:parse-android:1.13.1)
   > Could not get resource 'https://jcenter.bintray.com/com/parse/parse-android/1.13.1/parse-android-1.13.1.jar'.
      > Could not GET 'https://jcenter.bintray.com/com/parse/parse-android/1.13.1/parse-android-1.13.1.jar'.
         > Connection reset
> Could not download crashreport.aar (com.tencent.bugly:crashreport:2.6.6.1)
   > Could not get resource 'https://jcenter.bintray.com/com/tencent/bugly/crashreport/2.6.6.1/crashreport-2.6.6.1.aar'.
      > Could not GET 'https://jcenter.bintray.com/com/tencent/bugly/crashreport/2.6.6.1/crashreport-2.6.6.1.aar'.
         > Connection reset
> Could not download nativecrashreport.aar (com.tencent.bugly:nativecrashreport:3.3.1)
   > Could not get resource 'https://jcenter.bintray.com/com/tencent/bugly/nativecrashreport/3.3.1/nativecrashreport-3.3.1.aar'.
      > Could not GET 'https://jcenter.bintray.com/com/tencent/bugly/nativecrashreport/3.3.1/nativecrashreport-3.3.1.aar'.
         > Connection reset
> Could not download push-internal.aar (com.meizu.flyme.internet:push-internal:3.7.0)
   > Could not get resource 'https://jcenter.bintray.com/com/meizu/flyme/internet/push-internal/3.7.0/push-internal-3.7.0.aar'.
      > Could not GET 'https://jcenter.bintray.com/com/meizu/flyme/internet/push-internal/3.7.0/push-internal-3.7.0.aar'.
         > Connection reset
 

分三步走：

第一步：项目build.gradle在jcenter()后边加上：{url 'http://jcenter.bintray.com/'}

repositories {
    google()
    jcenter(){url 'http://jcenter.bintray.com/'}
}

第二步：改掉用户名/.gradle/gradle.properties文件夹，去掉里面的代理，

第三步：rebuild project.

解决

附赠一个保存view图片到相册的工具类：

  public Bitmap getBitmapFromView(View view) {
        int w = view.getWidth();
        int h = view.getHeight();
        Bitmap bmp = Bitmap.createBitmap(w, h, Bitmap.Config.ARGB_8888);
        Canvas c = new Canvas(bmp);
        view.layout(0, 0, w, h);
        view.draw(c);
        // 缩小图片
        Matrix matrix = new Matrix();
        matrix.postScale(2f, 2f); //长和宽放大缩小的比例
        bmp = Bitmap.createBitmap(bmp, 0, 0, bmp.getWidth(), bmp.getHeight(), matrix, true);
        return bmp;
    }

    public void SaveBitmapFromView(View view) {
        int w = view.getWidth();
        int h = view.getHeight();
        Bitmap bmp = Bitmap.createBitmap(w, h, Bitmap.Config.ARGB_8888);
        Canvas c = new Canvas(bmp);
        view.layout(0, 0, w, h);
        view.draw(c);
        // 缩小图片
        Matrix matrix = new Matrix();
        matrix.postScale(2f, 2f); //长和宽放大缩小的比例
        bmp = Bitmap.createBitmap(bmp, 0, 0, bmp.getWidth(), bmp.getHeight(), matrix, true);
        DateFormat format = new SimpleDateFormat("yyyyMMddHHmmss");
        saveBitmap(bmp, format.format(new Date()) + ".JPEG");
    }

    public void saveBitmap(Bitmap bitmap, String bitName) {
        String fileName;
        File file;
        if (Build.BRAND.equals("Xiaomi")) { // 小米手机
            fileName = Environment.getExternalStorageDirectory().getPath() + "/DCIM/Camera/" + bitName;
        } else {  // Meizu 、Oppo
            fileName = Environment.getExternalStorageDirectory().getPath() + "/DCIM/" + bitName;
        }
        file = new File(fileName);

        if (file.exists()) {
            file.delete();
        }
        FileOutputStream out;
        try {
            out = new FileOutputStream(file);
            // 格式为 JPEG，照相机拍出的图片为JPEG格式的，PNG格式的不能显示在相册中
            if (bitmap.compress(Bitmap.CompressFormat.JPEG, 90, out)) {
                out.flush();
                out.close();
// 插入图库
                MediaStore.Images.Media.insertImage(this.getContentResolver(), file.getAbsolutePath(), bitName, null);

            }
        } catch (FileNotFoundException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();

        }
        // 发送广播，通知刷新图库的显示
        this.sendBroadcast(new Intent(Intent.ACTION_MEDIA_SCANNER_SCAN_FILE, Uri.parse("file://" + fileName)));

    }