How to launch Android Emulator using command line

Cd to the directory of the emulator which contains the “emulator.exe”; run emulator -list-avds to list all the available avds’ name; run emulator -avds [avd-name] to run the specific avd.

Using Firebase to host multi website

Initiate your project cd into your working directory, using firebaes init to initiate your website. Then three files will appear under your folder, “.firebaserc”, “.gitignore” and “firebase.json”. Change your setting In “firebase.json” file, it contains your hosting settings. a configuration example below: { “hosting”: { “site”: “XXXXXXX”, // the site name in your Firebase console…

install mysqlclient on win10 python37

from: https://stackoverflow.com/questions/51146117/installing-mysqlclient-in-python-3-6-in-windows I am using python3.7 on Windows 10 operating system. I had same issue and after a long research I had installed it successfully. Install “Microsoft Visual C++ Build Tools” AND My OS is having 64 bit operating system but still then it need to install 32 bit version “mysqlclient‑1.4.2‑cp37‑cp37m‑win32.whl” Download binary wheels from…

flutter-error Unable to locate a development device; please run ‘flutter doctor’ for information about installing additional components

from: https://github.com/flutter/flutter/issues/19805 when you encounter this error, it means that flutter cannot find the SDK in your system. You can install the android sdk manually on your operation system. First, download SDK here: https://developer.android.com/studio skd-tools-windows-334XXXX.zip unzip it into one directory Second, find the \tools\bin file and open cmd shell here. run “.\sdkmanager.bat “platforms;android-28” “platform-tools” “build-tools:28.0.3”…

npm install drizzle Issures also web3

–Python version error gyp ERR! configure error gyp ERR! stack Error: Command failed: C:\python3\python.EXE -c import sys; print “%s.%s.%s” % sys.version_info[:3]; gyp ERR! stack File “”, line 1 gyp ERR! stack import sys; print “%s.%s.%s” % sys.version_info[:3]; gyp ERR! stack ^ gyp ERR! stack SyntaxError: invalid syntax –Reason: 1) python version should be pytho2.x 2)…

rasyberry install ffmpeg with h264 support

reference: https://www.oodlestechnologies.com/blogs/Configure-FFmpeg-with-H264-Codec-on-Raspberry-Pi-3 We will install x264 codec from videolan org, as you know x264 codec is very popular nowdays. git clone –depth 1 git://git.videolan.org/x264 cd x264 ./configure –host=arm-unknown-linux-gnueabi –enable-static –disable-opencl make -j4 sudo make install sudo apt-get install libmp3lame-dev -y git clone –depth=1 git://source.ffmpeg.org/ffmpeg.git cd ffmpeg ./configure –arch=armel –target-os=linux –enable-gpl –enable-libx264 –enable-libmp3lame –enable-nonfree make -j4 sudo…

pip Retrying (Retry(total=4, connect=None, read=None, redirect=None)) after connection broken by ‘NewConnectionError

pip install django failed Retrying (Retry(total=4, connect=None, read=None, redirect=None)) after connection broken by ‘NewConnectionError Because of the regular user can not access https After several kinds of tries, I find that in my current user environment , I can not curl https urls. The shell tells me  Links rejected , 127.0.0.1:1080 can not access so, I know in the env I…