对于Mesonversionis0.44.1butprojectrequires>=0.45.感兴趣的读者，本文将会是一篇不错的选择，并为您提供关于Anapplicationisattemptingt

对于Meson version is 0.44.1 but project requires >=0.45.感兴趣的读者，本文将会是一篇不错的选择，并为您提供关于An application is attempting to perform an action that requires privileges. Authentication is requir、Android Wear错误ConnectionResult {statusCode = SERVICE_VERSION_UPDATE_REQUIRED,resolution = null}、Cannot detect Web Project version. Please specify version of Web Project through configura、centos解决Could not find a version that satisfies the requirement pip3 (from versions: none)及No mat...的有用信息。

• Meson version is 0.44.1 but project requires >=0.45.
• An application is attempting to perform an action that requires privileges. Authentication is requir
• Android Wear错误ConnectionResult {statusCode = SERVICE_VERSION_UPDATE_REQUIRED,resolution = null}
• Cannot detect Web Project version. Please specify version of Web Project through configura
• centos解决Could not find a version that satisfies the requirement pip3 (from versions: none)及No mat...

Meson version is 0.44.1 but project requires >=0.45.

/*******************************************************************************
 *         Meson version is 0.44.1 but project requires >=0.45.
 * 说明：
 *     Yocto编译突然出现Meson编译出现版本问题；
 *
 *                                          2019-11-19 深圳 宝安西乡 曾剑锋
 ******************************************************************************/


一、出错现象：
    Meson encountered an error in file meson.build, line 1, column 0:
    Meson version is 0.44.1 but project requires >=0.45.
    
二、问题原因：
    1. https://github.com/vkmark/vkmark/blob/master/meson.build#L6
    2. 同步了Yocto的Source代码，然后更新了最新的vkmark，但是meson的版本还是之前的0.44.1版本的；

三、处理方法：
    1. 修改tmp/work/aarch64-poky-linux/vkmark/1.0-r0/git/meson.build文件对应的版本小于0.44.1就行了：
        project(
            ''vkmark'',
            ''cpp'',
            default_options : [''cpp_std=c++14''],
            version : ''2017.08'',
            meson_version: ''>=0.41''
            )

An application is attempting to perform an action that requires privileges. Authentication is requir

An application is attempting to perform an action that requires privileges. Authentication is required to perform this action.

resolve  :   sudo command...

Android Wear错误ConnectionResult {statusCode = SERVICE_VERSION_UPDATE_REQUIRED,resolution = null}

compile 'com.google.android.gms:play-services:7.3.0'

@Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        final WatchViewStub stub = (WatchViewStub) findViewById(R.id.watch_view_stub);
        stub.setonLayoutInflatedListener(new WatchViewStub.OnLayoutInflatedListener() {
            @Override
            public void onLayoutInflated(WatchViewStub stub) {
                mTextView = (TextView) stub.findViewById(R.id.text);
            }
        });
        int result = GooglePlayServicesUtil.isGooglePlayServicesAvailable(this);
        Log.i(TAG,"Services available: "+ result);
        mGoogleapiclient = new Googleapiclient.Builder(this)
                .addConnectionCallbacks(new Googleapiclient.ConnectionCallbacks() {
                    @Override
                    public void onConnected(Bundle connectionHint) {
                        Log.d(TAG,"onConnected: " + connectionHint);
                        // Now you can use the Data Layer API
                    }
                    @Override
                    public void onConnectionSuspended(int cause) {
                        Log.d(TAG,"onConnectionSuspended: " + cause);
                    }
                })
                .addOnConnectionFailedListener(new Googleapiclient.OnConnectionFailedListener() {
                    @Override
                    public void onConnectionFailed(ConnectionResult result) {
                        Log.d(TAG,"onConnectionFailed: " + result);
                    }
                })
                        // Request access only to the Wearable API
                .addApi(Wearable.API)
                .build();

    }

    @Override
    protected void onStart() {
        super.onStart();
        Log.i(TAG,"==OnStart===");
        mGoogleapiclient.connect();
    }

Cannot detect Web Project version. Please specify version of Web Project through configura

centos解决Could not find a version that satisfies the requirement pip3 (from versions: none)及No mat...

python环境：python 3.8

报错信息：

WARNING: pip is configured with locations that require TLS/SSL, however the ssl module in Python is not available.
Collecting pip3
  WARNING: Retrying (Retry(total=4, connect=None, read=None, redirect=None, status=None)) after connection broken by ''SSLError("Can''t connect to HTTPS URL because the SSL module is not available.")'': /simple/pip3/
  WARNING: Retrying (Retry(total=3, connect=None, read=None, redirect=None, status=None)) after connection broken by ''SSLError("Can''t connect to HTTPS URL because the SSL module is not available.")'': /simple/pip3/
  WARNING: Retrying (Retry(total=2, connect=None, read=None, redirect=None, status=None)) after connection broken by ''SSLError("Can''t connect to HTTPS URL because the SSL module is not available.")'': /simple/pip3/
  WARNING: Retrying (Retry(total=1, connect=None, read=None, redirect=None, status=None)) after connection broken by ''SSLError("Can''t connect to HTTPS URL because the SSL module is not available.")'': /simple/pip3/
  WARNING: Retrying (Retry(total=0, connect=None, read=None, redirect=None, status=None)) after connection broken by ''SSLError("Can''t connect to HTTPS URL because the SSL module is not available.")'': /simple/pip3/
  Could not fetch URL https://pypi.org/simple/pip3/: There was a problem confirming the ssl certificate: HTTPSConnectionPool(host=''pypi.org'', port=443): Max retries exceeded with url: /simple/pip3/ (Caused by SSLError("Can''t connect to HTTPS URL because the SSL module is not available.")) - skipping
  ERROR: Could not find a version that satisfies the requirement pip3 (from versions: none)
ERROR: No matching distribution found for pip3
WARNING: pip is configured with locations that require TLS/SSL, however the ssl module in Python is not available.
Could not fetch URL https://pypi.org/simple/pip/: There was a problem confirming the ssl certificate: HTTPSConnectionPool(host=''pypi.org'', port=443): Max retries exceeded with url: /simple/pip/ (Caused by SSLError("Can''t connect to HTTPS URL because the SSL module is not available.")) - skipping

安装python 3.8的方法：centos安装httprunner方法

执行命令：

#pip install httprunner

报错：使用pip 命令失败，见顶部“报错信息”

解决办法：升级openssl

1、查看openssl版本

# openssl version

OpenSSL 1.0.1e-fips 11 Feb 2013

# cat /etc/issue               
CentOS release 6.6 (Final)
Kernel \r on an \m

原因：系统版本centos6.6，其中openssl的版本为OpenSSL 1.0.1e-fips 11 Feb 2013,而python3.8需要的openssl的版本为1.0.2或者1.1.x,需要对openssl进行升级，并重新编译python3.8.0。

注意：yum 安装的openssl 版本都比较低。
2、下载openssl
#wget https://www.openssl.org/source/openssl-1.1.1a.tar.gz
#tar -zxvf openssl-1.1.1a.tar.gz
#cd openssl-1.1.1a
3、编译安装
#./config --prefix=/usr/local/openssl no-zlib #不需要zlib
#make && make install
4、备份原配置
#mv /usr/bin/openssl /usr/bin/openssl.bak
#mv /usr/include/openssl/ /usr/include/openssl.bak
5、新版配置
#ln -s /usr/local/openssl/include/openssl /usr/include/openssl
#ln -s /usr/local/openssl/lib/libssl.so.1.1 /usr/local/lib64/libssl.so
#ln -s /usr/local/openssl/bin/openssl /usr/bin/openssl
6、修改系统配置
1）写入openssl库文件的搜索路径
#echo "/usr/local/openssl/lib" >> /etc/ld.so.conf
2）使修改后的/etc/ld.so.conf生效
#ldconfig -v
7、查看openssl版本

# openssl version

OpenSSL 1.1.1a  20 Nov 2018

8、重新安装python

进入python解压缩文件夹，执行
#./configure --prefix=/usr/local/python3 --with-openssl=/usr/local/openssl
#make
#make install

------------------------------------------------------Tanwheey--------------------------------------------------

爱生活，爱工作。

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