Solutions:
Ask the machine room staff to force the machine shut down, the 2 hard disks are unplugged again, restart it is OK.
Command: PIP install mysql-Connector-Python-RF ==2.1.3 Prompt error message when installing packages: Error :option — single-version — managednotrecognized
The reason may be that your installation package is a wheel-based installation package.
will report this error if you do not have wheels installed on your computer.
install wheel:
PIP install wheel
and then install with PIP I want package :
PIP install mysql-connector-python-rf==2.1.3
error(-215) ! Empty () In function detectMultiScale solution
Errors like this can occur when building a cascading classifier using OpenCV Python
error: (-215:Assertion failed) !empty() in function 'detectMultiScale'Any discussion about this question on Stack Overflow at https://stackoverflow.com/questions/30508922/error-215-empty-in-function-detectmultiscale
The common perception is that XML or other files are missing or incorrectly routed.
The correct path would look like this:
cascade_fn = args.get('--cascade', "../../data/haarcascades/haarcascade_frontalface_alt.xml")
nested_fn = args.get('--nested-cascade', "../../data/haarcascades/haarcascade_eye.xml")
cam = create_capture(video_src, fallback='synth:bg=../data/lena.jpg:noise=0.05')
There are also some references to this answer:
http://answers.opencv.org/question/52340/opencv-error-assertion-failed-empty-in-detectmultiscale/
<%if (***)%>
<%=***%>
<%else %>
<%=***%>Error in the “else” in the third line
Syntax error on token “else”, delete this token
else must be followed by if. This error indicates that if
solution is not found:
add parentheses. Note that the “} “of if must be written inside the” else”
<%if (***) {%>
<%=***%>
<%} else {%>
<%=***%>
<%}%>
”
OrderSend Error 130 “is because the constant is”
ERR_INVALID_STOPS “(= invalid loss stops) in the following cases.
Reason # 1: Loss cutting (profit fixing) prices are too close to current price data.
Reason 2: The formula used to calculate the profit and loss reduction (profit determination) price is incorrect.
Reason 3: Loss reduction (profit determination) prices have not normalized.
the reasons for the occurrence of “OrderSend Error 130” are described above, but the first reason may be the cause of Error in particular, so the possibility is relatively low.
we checked to avoid cause 2 and 3, so we could basically avoid the Error “OrderSend Error 130”.
Mount an NTFS partition that cannot be accessed from Windows under Linux
About Windows 7, the computer installed Ubantu in the other partition (not allocated space under Win7). After installing Ubuntu, the user was not allowed to access the Windows 7 partitions by myself. Error mounting /dev/sda8 at /media/my/XXX: commandline ‘mount-t “ntFs-o” was not allowed
Solution:
Open terminal: If ntFS-3G is not installed, sudo Apt-get install NTFS-3G
Fix the appropriate partition for mounting errors such as /dev/sda8 in the prompt, enter:
sudo ntfsfix /dev/sda8
Just hit enter.
“‘
Error in RStudioGD() :
Shadow graphics device Error: r Error 4 (r code execution Error)
in addition: Warning messages:
1: IngrDevices: : : PNG (” C:/Users/ADMINI ~ 1/AppData/Local/Temp/RtmpWYc8MO/95 c0efe47bfb41aab3df215bc1db0f37. PNG “, : Unable to open ‘C:/Users/ADMINI ~ 1/AppData/Local/Temp/RtmpWYc8MO/95 c0efe47bfb41aab3df215bc1db0f37. PNG’ text written
2: IngrDevices: : : PNG (” C:/Users/ADMINI ~ 1/AppData/Local/Temp/RtmpWYc8MO/95 c0efe47bfb41aab3df215bc1db0f37. PNG “, :
opening device failed
“`
two days appear this problem, because before the computer with two versions of the R, appears the question, said online because Rstudio cannot identify, unload the unused version, later. This problem appears again today, I do not know what the reason is, it is OK to uninstall and reinstall.
# Read more about gapps-config file here:
https://github.com/opengapps/opengapps/wiki/Advanced-Features-and-Options
# Prevent automatic removal
# +Browser # Stock Browser
# +CameraStock # Stock Camera
# +Email # Stock Email
# +Gallery # Stock Gallery
# +Launcher # Stock Launcher(s)
# +MMS # Stock SMS
# +PicoTTS # the Stock PicoTTS app
# Remove CM/stock apps
(Gello)
(BasicDreams) # Basic Dreams Wallpaper
# (CMAccount) # CM Account Application
# (CMAudioFX) # CM AudioFX
(CMFileManager) # CM File Manager
# (CMMusic) # CM Music
# (CMScreenCast) # CM ScreenCast app
# (CMSetupWizard) # CM Setup Wizard (see Notes for CMSetupWizard)
# (CMUpdater) # CM Updater
# (CMWallpapers) # CM Wallpapers
# (CMWeatherProvider) # CM Weather Underground
# (DashClock) # DashClock Widget (found in certain ROMs)
(Galaxy) # Galaxy (also known as BlackHole) Wallpaper
(Hexo) # Hexo Libre Theme
(HoloSpiral) # Holo Spiral Wallpaper
(NoiseField) # Noise Field Wallpaper
# (OmniSwitch) # OmniSwitch recent apps switcher replacement
(Phasebeam) # Phasebeam Wallpaper
(PhotoPhase) # Photo Phase Wallpaper
(PhotoTable) # Photo Table Wallpaper
(Browser) # Stock Browser
# (CalculatorStock) # Stock Calculator (automatically removed when Google Calculator is installed)
# (CalendarStock) # Stock Calendar (automatically removed when Google Calendar is installed)
# (CameraStock) # Stock Camera
# (ClockStock) # Stock Desk Clock (automatically removed when Google Desk Clock is installed)
(Email) # Stock Email Client
# (ExchangeStock) # Stock Exchange Services (automatically removed when Google Exchange Services is installed)
# (MzFileManager) # Stock FlymeOS File Manager
# (MzPay) # Stock FlymeOS Pay system (because MzPay services works only in China)
# (MzSetupWizard) # Stock FlymeOS SetupWizard
# (MzUpdater) # Stock FlymeOS Updaters
# (MzWeather) # Stock FlymeOS Weather (because MzWeather service work only in China)
# (FMRadio) # Stock FM Radio (not found on all devices or ROMs)
# (Gallery) # Stock Gallery
# (KeyboardStock) # Stock Keyboard (automatically removed when Google Keyboard is installed)
# (Launcher) # Stock Launcher(s)
(LiveWallpapers) # Stock Live Wallpapers
# (LockClock) # Stock Lockscreen Clock Widget
# (Studio) # Stock Movie Studio
# (TagStock) # Stock NFC Tags (automatically removed when Google NFC Tags is installed)
(PicoTTS) # Stock PicoTTS
# (PrintServiceStock) # Stock Print Service Recommendation Service (automatically removed when Google Print Service Recommendation Service is installed)
# (SimToolKit) # Stock SimToolKit
# (MMS) # Stock SMS (automatically removed if Google Messenger and/or Hangouts is installed)
# (StorageManagerStock) # Stock Storage Manager (automatically removed when Google Storage Manager is installed)
# (Terminal) # Stock Terminal
# (Themes) # Stock Theme Engine (Will break the Settings Entry and can cause unexpected reboots on some ROMs)
(VisualizationWallpapers) # Stock Visualization Wallpapers
(WhisperPush) # Stock WhisperPush support
# Install GApps
include
# Pico+
DialerFramework # Dialer Framework
CalSync # Google Calendar Sync (except if Google Calendar is being installed)
GoogleTTS # Google Text-to-Speech (Micro+ on 5.0-, Pico+ on 6.0+)
PackageInstallerGoogle # Google Package Installer
# Nano+
# FaceDetect # FaceUnlock
# FaceUnlock # FaceUnlock
Search # Google Search (including includes Hotword, excluding excludes GoogleNow and PixelLauncher)
Speech # Offline Speech Files
# Hotword # OK Google Hotword Enrollment
# Micro+
# Gmail # Gmail
CalendarGoogle # Google Calendar
ExchangeGoogle # Google Exchange Services
# GoogleNow # Google Now Launcher (requires Search)
# GoogleTTS # Google Text-to-Speech (Micro+ on 5.0-, Pico+ on 6.0+)
# Mini+
CalculatorGoogle # Google Calculator
ClockGoogle # Google Clock
# Maps # Google Maps
# TagGoogle # Google NFC Tags
# Photos # Google Photos
# GooglePlus # Google+
# Hangouts # Hangouts
# YouTube # YouTube
# Full+
# Chrome # Google Chrome Browser
CloudPrint # Google Cloud Print
# Docs # Google Docs
# Drive # Google Drive
# Fitness # Google Fit
# Keep # Google Keep
# NewsWidget # Google News & Weather
# Books # Google Play Books
# PlayGames # Google Play Games
# Movies # Google Play Movies & TV
# Music # Google Play Music
# NewsStand # Google Play Newsstand
# Sheets # Google Sheets
# Slides # Google Slides
# Talkback # Google TalkBack
# Stock+
CameraGoogle # Google Camera
ContactsGoogle # Google Contacts
DialerGoogle # Google Dialer
KeyboardGoogle # Google Keyboard
Messenger # Google Messenger (except on tablet devices)
# PixelIcons # Google Pixel Icons
StorageManagerGoogle # Google Storage Manager
# VRService # Google VR Services
# WebViewGoogle # Google Webview
# PixelLauncher # Pixel Launcher (requires Search and Wallpapers)
PrintServiceGoogle # Print Service Recommendation Service
Wallpapers # Wallpapers
# Super+
# AndroidPay # Android Pay
# DMAgent # Google Apps Device Policy
GCS # Google Connectivity Services (excluding also excludes Project Fi)
# Earth # Google Earth
# Indic # Google Indic Keyboard
# Japanese # Google Japanese Input
# Korean # Google Korean Input
# Pinyin # Google Pinyin Input
# Street # Google Street View
# Translate # Google Translate
# Zhuyin # Google Zhuyin Input
# ProjectFi # Project Fi by Google# commented out indicates no installation
Then drag this file to the same directory as your GApps installation package
So you can install it normally
Problems with BREW installing SIP:
$ brew install sip
Error: The `brew link` step did not complete successfully
The formula built, but is not symlinked into /usr/local
Could not symlink include/sip.h
/usr/local/include is not writable.
You can try again using:
brew link sip
$ brew link sip
Linking /usr/local/Cellar/sip/4.19.5...
Error: Could not symlink include/sip.h
/usr/local/include is not writable.Find /usr/local/ there is no path /usr/local/include
need to create this path and modify the permissions
Solution:
$ sudo mkdir /usr/local/include
$ sudo chown $(whoami):admin /usr/local/includeSuccess:
$ brew link sip
Linking /usr/local/Cellar/sip/4.19.5... 10 symlinks createdGolang Docker Build runs an error after making the input
The problem arises because the environment in which you are compiling is different from the environment in which you are running, and may have dependencies on dynamic libraries
1. By default, go USES static linking and dynamic compilation is used in Docker’s Golang environment.
2. If you want to compile +alpine to deploy with docker, you can do so by disabling cgoCGO_ENABLED=0.
3. If you want to use cgo, make GCC statically compiled by go build --ldflags "-extldflags -static".
Reference: https://yryz.net/post/golang-docker-alpine-start-panic.html
Reproduced in: https://www.cnblogs.com/davygeek/p/10969434.html