imac problems starting up

Project needs to make a similar QQ contact folding table, the idea is simple: Set the header of each section, display the group name on the header, and then according to the collapse or not, set the number of cells in each section, if collapsed, set it to 0, Otherwise set to the actual number of cells, then refresh the table.So here's the question:1. If you use a Uitableviewstyleplain-style table, the header will hover over the top when the table slides, rather than sliding along the table.2. If

oracle| problems to start Oracle common problem Analysis (2003-10-1) This article is from "Network Administrator World" 2003 phase 10th "Fault Diagnosis" column The startup and shutdown of instances and databases is one of the important responsibilities of DBAs. Only open the database, other users can manipulate the data in the database. Once the database is closed, it cannot be manipulated. It is often the case for DBAs to shut down and restart the

troubleshoot problems with the VMware NAT Service services not starting or service disappearing 2016-02-02 11:18 2012 People read Comments (2) Favorites report Category: network communications (3)Use the Windows 7 virtual machine (NAT mode) in VMware today to discover that there is no network, the network card shows the "net Cable unplugged", check that the host's VMware NAT service services are not sta

Using Linux virtual machines in VMware (NAT mode) today to discover that there is no network, the NIC shows "eternal cannot connect to the virtual network VMnet8", check that the VMware NAT Service services of the host are not started, manually start the pop-up error Prompt " 1067: Service failed to start, dependent on package group ".Because of the system that just upgraded the host yesterday, guessing that some of the service's dependencies might have been compromised for some reason, but did

following is the use of the real machine to start the inspector, the problem encountered, the real machine startup encountered problems, first put a logInfo: [Debug] [INST STDERR] 2015-12-11 17:54:01.261 instruments[10308:11044258] WebKit threading violation-initial use O F WebKit from a secondary thread.Info: [Debug] [INST STDERR] 2015-12-11 17:54:07.289 instruments[10308:11044422] Attempting to change event horizon while D IsengageInfo: [Debug] [IN

.Let's take a look at the content of the db2nodes. cfg and hosts files?VI db2nodes. cfgVI/etc/hostsObviously, the localhost in db2nodes. cfg is not defined in the hosts file.So we need to change the localhost in db2nodes. cfg to the linux-vm23.localdomain In the hosts fileNext, start DB2 normally! Run the command again to start the tds ldap server:./ibmslapd-I ldapdb2. The execution result is as follows: We found that problem 1 has been solved, and now we are trying our best to solve problem

First question:[Email protected]:/usr/local/mysql/bin#./mysqld_safe start (start the MySQL service!) )151123 14:19:04 mysqld_safe Logging to '/usr/local/mysql/data/b-thinkpad-x230s.err '.151123 14:19:04 Mysqld_safe starting mysqld daemon with databases From/usr/local/mysql/data151123 14:19:05 mysqld_safe mysqld from PID File/usr/local/mysql/data/b-thinkpad-x230s.pid ended[Email protected]:/usr/local/mysql/bin#./mysql--user=mysql (login with MySQL user

At the beginning of self-learning CSS encountered problems, "linked to the external style sheet" exercise, the code is as follows:A, the CSS file code that is linked into. css--------------------------------------------------------------------------------B, HTML exercise page code. html-------------------------------------------------------------------------------There's a lot of problems, I'm one by one.1,

-installed MSVCRT, it will load its own copy.Microsoft.VC90.CRT This directory can be found in the VC installation directory, search for it.Assuming your app is installed in the AppInstallDir>YourApp.ExeYourdll1.DllYourdll2.DllQtCore4dll qtgui4. DLL imageformats> qgif4.qjpeg4. DLL qico4. DLL microsoft. Vc90. Crt> microsoft. Vc90. Crt. Manifest msvcr90. DLL msvcp90. DLL You can also download the installation directory under the YY voice reference file.YY Voice

First, problem: Java.io.filenotfoundexception:c:\program files\apache software Foundation\tomcat 7.0\logs\Critical: Failed to open access log file [C:\Program files\apache software Foundation\tomcat 7.0\logs\localhost_access_log.2016 -10-25.txt]Java.io.filenotfoundexception:c:\program Files\apache Software Foundation\tomcat 7.0\logs\localhost_access_ Log.2016-10-25.txt (Access denied. )Workaround:Open the Tomcat 7 installation directory, locate the log folder, right click-"Select Properties-" Se

After eclipse installs the ADT plug-in, then installs the Genymotion plugin locally, restarts Eclipse, opens the Genymotion test, finds an error, and the error message is as follows:Exception (vboxmanage): Java.io.IOException:Cannot Run Program "D:\Program Files\genymobile\genymotion\/reg": CreateProcess error=2,?? Õ?» µ½?¶Initialize engine:failedThe problem of this situation was found in the study of genymotion 2.5.4 Simulator missing files: reg.exeDownload it and drop it into the Genymotion in

Regular information supplement:Caused by:javassist. Cannotcompileexception:by Java.lang.OutOfMemoryError:PermGen SpaceAt Javassist. Classpool.toclass (classpool.java:1099)At Javassist. Ctclass.toclass (ctclass.java:1265)At Com.taobao.hsf.bytecode.ClassGenerator.toClass (classgenerator.java:293)... Panax Notoginseng Morecaused By:java.lang.OutOfMemoryError:PermGen spaceAt Java.lang.ClassLoader.defineClass1 (Native Method)At Java.lang.ClassLoader.defineClassCond (Unknown Source)At Java.lang.ClassL

About Apache failed to boot is primarily 80 port problem, let's take a look at the treatment of Port occupied Solution: 1: Run Netstat-ano under DOS 2: In the Xampp Control Panel, click Setup to open the command interface, 3: Select 6 Enable Mob_perl 4: Restart XAMPP, this time running http://localhost should work properly The third situation is a number of online users encountered problems: Problem occurred with port binding, not bound to requi

Several ports (8005, 8080, 8009) required by Tomcat v8.5 Server at localhost is already in use. The server may already is running in another process, or a system process could be using the port. To start this server you'll need to stop the other process or change the port number (s).cause : This is due to the fact that Tomcat was previously turned on and the operation to turn on Tomcat is performed when you run Eclipse.workaround : Double-click Shutdown.bat to close Tomcat and run in Eclipse in