What are the eight life cycle hook functions of Vue>>> 
solve the problem of “error: error fetching remote repo ‘origin'” in Git on Jenkins
Reference article:
(1) Solve the problem of “error: error fetching remote repo ‘origin'” in Git on Jenkins
（2） https://www.cnblogs.com/feng0520/p/9070071.html
Let’s make a note.
Why are there a series of technical challenges behind “OMG buy it”>>> 
Jenkins reported the problem of ‘gradle build daemon appeared unexpectedly’ to solve
Reference article:
(1) The solution of Jenkins’ error ‘gradle build daemon appeared unexpectedly’
（2） https://www.cnblogs.com/liushengchieh/p/9729786.html
Let’s make a note.
Recently, I was learning Jenkins. When configuring SVN, I found that there are always errors
javax.net.ssl.SSLProtocolException: handshake alert: unrecognized_ name
This error was encountered when using the SVN plug-in of idea. Just add the following code to the Java parameter:
-Djsse.enableSNIExtension=false
In Jenkins, use the following method to solve the problem:
1. If you start from the command line, add the following (brilliant part) at startup:
@echo off
set JENKINS_ HOME=D:\jenkins
D:\jdk1.7.0_ 40\bin\java -Djsse.enableSNIExtension=false -jar %JENKINS_ HOME%\jenkins.war –httpPort=8000
2. Open jenkins.xml file in Jenkins directory when starting windows service, and add it in the following parts:
< arguments>- Djsse.enableSNIExtension=false -Xrs -Xmx256m -jar “%BASE%\jenkins.war” –httpPort=8000 -Dhudson.lifecycle=hudson.lifecycle.WindowsServiceLifecycle</ arguments>
The error prompt is as follows:
error: No signing certificate "iOS Distribution" found: No "iOS Distribution" signing certificate matching team ID "YQL2NV3V7T" with a private key was found. (in target 'HelloWorld')
** ARCHIVE FAILED **The answers found on the Internet are all like this. It doesn’t work even if you try
Jenkins encountered problems in automatically building IOS package signature
Solution:
Before compiling, add security unlock Keychain – P “your password” “path to Keychain/login. Keychain”
The root cause is Jenkins, SSH mode to slave machine, default is no account, but access to the key chain must have user identity, so add a step to enter the password to unlock the key chain, you can give Jenkins a user identity. Add a step to unlock the key chain before the build step. security unlock-keychain -p “login pwd” ~/Library/Keychains/login.keychain
Modification process:
It’s a matter of system user rights
I put Tomcat + Jenkins in the root directory
However, the certificate configured by Xcode is in a subdirectory under login user/user/Wangju
Then start Jenkins. The. Jenkins directory is also generated in the/user/Wangju directory
It’s not easy to use many methods. Finally, I moved Jenkins’ installation directory to/user/Wangju/Library Directory
start Tomcat again, log in Jenkins , execute the packing command, and the amazing thing is that the packing is successful. Now it’s still a bit confusing, but it’s finally solved this problem. I want to cry when I see that I can type the xcatchive file. From about 7 pm yesterday to 11 pm, I have been thinking about this problem, and then to 11 pm today, it’s almost 7 hours, and I finally don’t need to re install the system to get it done. Let’s have a good time
Attach a path of Tomcat startup file
This problem is repeated again, and the solutions are as follows:
CD to Tomcat file installation directory
Stop Tomcat service
Start Tomcat service 
After restarting tomcat, the Java icon appears on the desktop. It’s strange that Jenkins can also be used before, but there is no Java icon on the desktop?It is suspected that there is something wrong with the way I started tomcat, so after the computer was restarted, Jenkins packaging was affected
It seems that this is the reason
note: when I use launch to start tomcat, the program execution is normal, but I can’t start the service, and the permission modification is done, but it’s still useless
———————-Dividing line———————-
In addition, I also changed the permissions of the user directory where the certificate is located. I don’t know if there is such a reason
Select system preferences & gt> Sharing can be configured
I also moved these files in the directory of/user/xxx/library/keychains to the directory of/var/root/library/keychains. I tried, but it didn’t seem to work. Finally, I deleted the copied files
Now I don’t know which step affects the final result after so many operations, but if I encounter the problem of IOS packaging again, I will definitely not change the system configuration file (before configuration, I changed the Mac computer name, administrator user name and home directory, but it’s strange that I changed the administrator user name to ABC, CBA is always displayed on the command line. I don’t know if this is the cause of my configuration error. User rights, etc.)
I think this kind of answer may also be OK, but I didn’t try
Note: the password can be added to the credential. If Jenkins is downloaded from the root user, please change/etc/sysconfig/Jenkins to root, otherwise an error will be reported; Or create a new ordinary user, and modify it
Then restart: Service Jenkins restart
Yesterday, when I installed Jenkins, I found that my Mac had already installed Jenkins, and I forgot my password. So I searched a lot of technical blogs, but I spent several hours without finding them. Finally, I found them on foreign websites http://stackoverflow.com/questions/11608996/how-to-uninstall-jenkins
The first time I wrote a blog, it was wrong. I’m sorry
First, uninstall Jenkins, open your Mac terminal, enter the following command/or find your Jenkins file, double-click the folder to run install. Command
2. Delete some configurations that may be forgotten
sudo rm -rf /var/root/.jenkins ~/.jenkins3. If the old Jenkins version cannot be found, use the following command
sudo launchctl unload /Library/LaunchDaemons/org.jenkins-ci.plist
sudo rm /Library/LaunchDaemons/org.jenkins-ci.plist
sudo rm -rf /Applications/Jenkins "/Library/Application Support/Jenkins" /Library/Documentation/Jenkins4. Delete all the contents of Jenkins folder
sudo rm -rf /<User you replace>/Shared/Jenkins5. Delete user and group
sudo dscl . -delete /Users/jenkins
sudo dscl . -delete /Groups/jenkins6. The following command is also uninstalled from the newer version of Jenkins in the script
sudo rm -f /etc/newsyslog.d/jenkins.conf
pkgutil --pkgs | grep 'org\.jenkins-ci\.' | xargs -n 1 sudo pkgutil --forgetAfter executing selenium test cases in pcharm, it can run normally
Integrated in Jenkins. When building, it is found that the build is successful. However, when viewing the console output, an error is reported: unknown error: cannot find chrome binary
The reason is that Chrome browser cannot be found and chrome.exe environment variable configuration is missing
Configuration build execution status:
1. Back to Jenkins home page, click “build execution status” or “build executor status”, and local information will be listed on the right
2. Click the local settings button to add the directory of chrome.exe in the path
3. Click build now again and the execution is successful
