common computer problems and solutions

"Not a valid NDK directory" appears when adding NDK packagesCreate a new TXT file in the extracted Android-ndk-rxxx folder, change the name including the suffix to Ndk-build, refresh the folder and the project and reload it, and then refresh the reload again later.Javah prompt error: ' com not found. XXX.XXX.xxx ' 's class file. Scientific Solutions. There are n solutions for this problem on the web, and th

Socket programming practices in Linux (4) TCP packet sticking problems and common solutions Generation of TCP packet sticking problems Because the TCP protocol is a byte stream-based and borderless transmission protocol, it is very likely to cause a packet sticking problem. In addition, the adhesive packet caused by th

normal and use SQL * plus to connect to the database; Precautions for using the Oracle connection pool and Oracle backup in WeblogicUsing HP-UNIX, Weblogic 8.1, Oracle 9.2.0.5A common connection pool is configured. The Driver uses oracle's Driver (Thin) version 9.0.1, 9.2.0Error:An error is reported when the database connection pool is used, indicating that there is no connection pool resource. In fact, the database connection pool is completely idl

. IE6 when the width of a row of child elements and the width of the parent is more than 3px, or if there is a state of discontent, the Margin-bottom will fail. Solution: None (own attention to avoid).IE6 text overflow bug: Cause: child element and parent width difference is less than 3px, or two floating elements have comments or inline elements. Solution: Wrap the comments or inline elements with a div.11. When the floating element and the absolute positioning element are side-by-side relation

This article provides a detailed analysis of SVN common problems and solutions. For more information, see Yellow exclamation point (conflict ):-- This is a conflict, that is, you have modified a file, and others have modified the file. others have submitted the file before you submit it, if you submit the file again, you will be prompted for a conflict. you are n

folder and import via the import option.Both of these methods will be copied to the APK when it is eventually generated. Recommended 2nd TypeTwo. Using Cocos run-p Android compile error, unable to compile, error The main information is summarized as follows:-dex:[DX] unexpected top-level EXCEPTION:[DX] merged Dex A (6 Defs/2.0kib) with Dex B (Defs/107.9kib). Result IS-Defs/129.7kib. Took 0.0s[DX] com.android.dex.DexException:Multiple dex files define Lcom/chukong/cocosplay/client/cocosplayclien

Do not refresh the page under IE (manual OK problem) // Solve the problem that the page needs to be refreshed manually if (SRC. indexof ('? ')! =-1) {src = SRC + " random =" + math. Floor (math. Random () * 100000);} else {src = SRC + "? Random = "+ math. Floor (math. Random () * 100000);} // solve the problem that the page needs to be refreshed manually when there is cache in IE. End Dynamically set the IFRAME height and width and obtain the internal elements of the operation (based on jquer

negative value to the parent element9. Z-index1) Z-index only valid for positioning elements (absolute relative fixed) 2) if different z-index elements are nested, the display hierarchy is determined by the parent element's Z-index decision 3) If different z-index elements are not nested, The display hierarchy is determined by the display order and the value size10. Cascade levels (Stacking level) – from low to high (more fit for loading and visual presentation)1) Stacking context Background/bo

About the use of Formula Editor in many books and magazines are introduced, but in the daily use of the process, there are a number of problems often appear, such as: input mathematical formula and then the distance, can not change the color of the formula, printing often garbled, and so on. To address the various issues mentioned above, let's look at specific solutions. First, solve the problem of line sp

Common problems and solutions in Web projects Http://blog.sina.com.cn/s/blog_51addfe401009e9s.html 1. Page effects such as: pop-up menu, there are special special effects code set. General DOM Operation (HTML,DIV) implementation 2. Minimize the use of hidden and display layers, instead of elements.innerhtml= "tagged text" dynamic overlay. 3. Database modeling:

A summary of common problems and solutions for Android development 1.activitymanager:warning:activity not started, it current Taskhas been brought to the frontDescription: There is already an instance running in the emulator.Workaround: Quit the program running in the simulator and run it again to resolve it.2.Nogrammar constraints (DTD or XML Schema) detected f

the port number after Note the name case. Target to server to see if the pool is up or not, to restart WebLogic garbled Problems (Java is based on Unicode): Add in We The Oracle XA's puzzleProblem Description: Oracle_xa;xaosw;d:oracleora92 dbmsXAORAXA9.lib c:msvcorasql9.libWhat do you mean, XAOSW?Answer: You can refer to the documentation for the XA section of Oracle.Http

Configure maven_home for appfuse2 instructions and solutions to common problems. java_home will not be nonsense: P Workshop ------------------------------------------------------------------------------------------ Steps: (The following steps are all input in the command line) Bytes ---------------------------------------------------------------------------------

Article Title: Common Operation Problems and Solutions in Linux. Linux is a technology channel of the IT lab in China. Includes basic categories such as desktop applications, Linux system management, kernel research, embedded systems, and open source. 1. Set the self-configured environment variables at startup In the Linux terminal environment, the export command

Common causes and solutions for Tomcat (8009,) Port occupation Problems In Enterprise Edition eclipse, when you have started the Tomcat server and are preparing to run the page or servlet, the following problems may occur:"Several ports (8005,808 0, 8009) required by Tomcat v6.0 server at localhostare already in use. t

)mysql> drop database test;ERROR 1290 (HY000): The MySQL server is running with the--super-read-only option so it cannot execute this statementmysql> set global super_read_only=0;Query OK, 0 rows Affected (0.00 sec)mysql> drop database test;Query OK, 0 rows Affected (0.00 sec)mysql> set global Super_read_only=1;Query OK, 0 rows Affected (0.00 sec)mysql> set global group_replication_allow_local_disjoint_gtids_join=on;Query OK, 0 rows Affected (0.00 sec)mysql> start group_replication;Query OK, 0 r

Common Problems and Solutions during Linux-2.6 kernel Transplantation1ga1nlb z0 matrix communication network-communication. It people's spiritual home z6od hs u + {1. After the kernel is started, stop after the following prompt appears:4 K + r5dm _ K0 matrix communication network-communication. It people's spiritual home: C' v $] JN] qq2' 6kuUncompressing Linux

Problems and solutions in the common use of Acer Music Studio Hong Lok Studio The common use question and answer of the Acer Music recording studio: Q: What are the differences and characteristics of the software of the studio and other automatic accompaniment software in the market? A: Of course, our software is

Network management is to make the network reliable, safe, efficient operation of the protection. Modern network management focuses on the development of communication technology and information processing technology in all aspects of the results of the different management functions of the network to play a role in the common implementation of network management tasks. Network management has a lot of skills and tips, the following describes some of t

Using the system process encountered font problems, it can be said that the probability is very small, most of the problems encountered is a software problem rather than the system itself. Here, share three small collections of font problems that are frequently encountered in Windows 7. 1 Font replaced by the song body, there are garbled This can only be said,