Build v0.7.0 failed at MD5 check of OpenCV and Eigen.

[wangkuiyi]

I am trying to build OneFlow v0.7.0 on an AWS host (information attached below).

After creating and activating the Conda env, I ran the following commands.

git clone -b v0.7.0 https://github.com/Oneflow-Inc/oneflow
cd oneflow
mkdir build
cd build
cmake .. -C ../cmake/caches/international/cpu.cmake
make -j64

The make -j64 command failed at

-- verifying file...
       file='/home/wkyi/w/oneflow/build/opencv/src/51cef2651.tar.gz'
-- MD5 hash of
    /home/wkyi/w/oneflow/build/opencv/src/51cef2651.tar.gz
  does not match expected value
    expected: '59870e55385f5202c1aa178fe37ed2de'
      actual: '69a413ea4fb9d28068cb86f3408f0f2f'
-- Hash mismatch, removing...

The system information is as the following.

(oneflow-dev-gcc7-v2) [wkyi@ip-172-31-16-248 build]$ cat /etc/os-release
NAME="Amazon Linux"
VERSION="2"
ID="amzn"
ID_LIKE="centos rhel fedora"
VERSION_ID="2"
PRETTY_NAME="Amazon Linux 2"
ANSI_COLOR="0;33"
CPE_NAME="cpe:2.3:o:amazon:amazon_linux:2"
HOME_URL="https://amazonlinux.com/"

[jackalcooper]

Please build the master branch

[wangkuiyi]

@jackalcooper Yes, I tried. It caused another error #8398