Tag Archives: other

[Solved] mongodb Startup Error: ERROR: child process failed, exited with error number 14

Mongodb used to work well before. Today, it suddenly started to report an error. According to the Internet, the possible reasons are:

1. failed to start when service mongodb restart
2. caused by not shutting down mongodb properly, such as direct kill -9 <pid> causes
3. locked by multiple threads when inserting data [may be too much data, space capacity is insufficient].

My solution:

Delete the mongod.lock file under dbpath, then delete all log files under logpath, and finally execute reboot to restart the server side.

[Solved] Pylink Windows Chinese path error: Specified file could not be opened

Solution:

Modify the jlink.py file under the pylink package path and find the flash_file method;

Find the self._dll.JLINK_DownloadFile line under this method, and modify the following parameter path.encode() to

path.encode(locale.getpreferredencoding()), Of course, you have to use the locale preamble package

jitpack.io ERROR: No build artifacts found [How to Solve]

jitpack.io ERROR: No build artifacts found

The foreword is solved

preface

Before, Android studio has been used to develop open source libraries and put them into jitpack Compile and package on Io. Recently, due to the research on the kotlin multiplatform of JetBrains, it is changed to develop an independent JVM library or multiplatform Library in idea. The multiplatform library is placed in jitpack There are bound to be problems with IO, because jitpack There are only JVM environments on Io. However, when the JVM library is put on, there are compilation success and packaging errors, error: no build artifacts found

Solution:

This is actually due to the fact that the com.android.libraryplugin is included when developing the library in Android studio, and artifacts are generated. But there is no need to put the com.android.libraryplugin in when making the jvm library ;

So we need to add artifacts manually.

Modify build Gradle file
groovy:

publishing {
    publications {
    	// This mavenJava can be filled in randomly, it's just a task name
    	// MavenPublication must have, this is the task class to call
        mavenJava(MavenPublication) {
        	// The header here is the artifacts configuration information, do not fill in the default
            groupId = 'org.gradle.sample'
            artifactId = 'library'
            version = '1.1'

            from components.java
        }
    }
}

If it is build gradle.kts file
kotlin:

publishing {
    publications {
        create("maven_public", MavenPublication::class) {
            groupId = "org.gradle.sample"
            artifactId = "library"
            version = "1.1"
            from(components.getByName("java"))
        }
    }
}

Finish

[Solved] kalibr Compile Error: error: ‘Eigen::MatrixBase＜Derived＞::~Matrix

Error 1:
/usr/include/eigen3/Eigen/src/Core/util/Macros.h:885:23: error: ‘Eigen::MatrixBase<Derived>::~MatrixBase() [with Derived = Eigen::Matrix<double, -1, 1>]’ is protected
EIGEN_DEVICE_FUNC ~Derived() = default;
Solution:
/usr/include/eigen3/Eigen/src/Core/MatrixBase.h line 466
Change protected to public
Error 2:

Errors     << aslam_cv_python:make /home/lab/kalibr_workspace/logs/aslam_cv_python/build.make.002.log
Solution: in the File of kalibr/aslam_cv/aslam_imgproc/include/aslam/implementation/aslamcv_helper.hpp, Change CvSize to cv::Size

Done!

error RC2247 : SYMBOL name too long [How to Solve]

An error was reported in compiling usbview today…

error RC2247 : SYMBOL name too long

Therefore, you only need to add it in front of the original usbview.rc


#define APSTUDIO_HIDDEN_SYMBOLS
#include "windows.h"
#include "prsht.h"
#include "wtypes.h"
#undef APSTUDIO_HIDDEN_SYMBOLS

Then it’s OK
later, use the resource editor provided by vs to change the location and update the resource content again

In this case, the modified full usview.rc content is provided:

#define APSTUDIO_HIDDEN_SYMBOLS
#include "windows.h"
#include "prsht.h"
#include "wtypes.h"
#undef APSTUDIO_HIDDEN_SYMBOLS


#include <windows.h>
#include <commctrl.h>
#include "resource.h"



//#if WINNT
//#include <ntverp.h>
//#else
//#include <version.h>
//#endif


//
//
// VERSION
//
#define VER_FILEDESCRIPTION_STR     "Microsoft\256 Windows(TM) USB Device Viewer"
#define VER_INTERNALNAME_STR        "USBVIEW"
#define VER_ORIGINALFILENAME_STR    "USBVIEW.EXE"
#define VER_LEGALCOPYRIGHT_STR      "Copyright \251 Microsoft Corporation 1996-2008.  All Rights Reserved."

#define VER_FILETYPE     VFT_APP
#define VER_FILESUBTYPE  VFT2_UNKNOWN

//#include <common.ver>


//
//
// ICON
//
IDI_ICON                ICON    DISCARDABLE     "USB.ICO"
IDI_BADICON				ICON	DISCARDABLE		"BANG.ICO"
IDI_COMPUTER			ICON	DISCARDABLE		"MONITOR.ICO"
IDI_HUB					ICON	DISCARDABLE		"HUB.ICO"
IDI_NODEVICE			ICON	DISCARDABLE		"PORT.ICO"

//
//
// Cursor
//
IDC_SPLIT               CURSOR  DISCARDABLE     "SPLIT.CUR"

/
//
// Dialog
//

IDD_MAINDIALOG DIALOGEX 0, 0, 640, 350
STYLE WS_MINIMIZEBOX | WS_MAXIMIZEBOX | WS_POPUP | WS_CAPTION | WS_SYSMENU | 
    WS_THICKFRAME
CAPTION "USB View"
MENU IDR_MENU
FONT 8, "MS Shell Dlg"
BEGIN
    CONTROL         "Tree1",IDC_TREE,"SysTreeView32",TVS_HASBUTTONS | 
                    TVS_HASLINES | TVS_LINESATROOT | WS_BORDER | WS_TABSTOP,
                    0,0,400,341,WS_EX_CLIENTEDGE
    EDITTEXT        IDC_EDIT,400,0,240,341,ES_MULTILINE | ES_READONLY | 
                    WS_VSCROLL | WS_HSCROLL
    CONTROL         "Devices Connected: 0",IDC_STATUS,"msctls_statusbar32",
                    SBARS_SIZEGRIP,
                    0,342,640,8
END


IDD_ABOUT DIALOG DISCARDABLE  0, 0, 212, 82
STYLE DS_MODALFRAME | WS_POPUP | WS_CAPTION | WS_SYSMENU
CAPTION "About USBView"
FONT 8, "MS Shell Dlg"
BEGIN
    DEFPUSHBUTTON   "OK",IDOK,80,62,50,14
    LTEXT           "USB Device Viewer",IDC_STATIC,54,15,64,8
    LTEXT           "Copyright (c) 1996-2008 Microsoft Corporation",
                    IDC_STATIC,54,30,145,8
#ifndef WINNT
    LTEXT           "Version",IDC_STATIC,55,45,24,8
    LTEXT           VER_PRODUCTVERSION_STR,IDC_STATIC,87,45,33,8
#endif
    ICON            IDI_ICON,IDC_STATIC,15,15,21,20
END


/
//
// Menu
//

IDR_MENU MENU DISCARDABLE 
BEGIN
    POPUP "&File"
    BEGIN
        MENUITEM "&Refresh\tF5",                ID_REFRESH
        MENUITEM SEPARATOR
        MENUITEM "E&xit",                       ID_EXIT
    END
    POPUP "&Options"
    BEGIN
        MENUITEM "&Auto Refresh",               ID_AUTO_REFRESH
        MENUITEM "&Config Descriptors",         ID_CONFIG_DESCRIPTORS
    END
    POPUP "&Help"
    BEGIN
        MENUITEM "&About",                      ID_ABOUT
    END
END

//
//
// Accelerator
//

IDACCEL ACCELERATORS DISCARDABLE 
BEGIN
    VK_F5,          ID_REFRESH,             VIRTKEY,NOINVERT
END

Content of resource.H:

/*++
Copyright (c) 1998 Microsoft Corporation, All Rights Reserved.
--*/

#define IDD_MAINDIALOG                  101
#define IDR_MENU                        102
#define IDD_ABOUT                       103
#define IDI_ICON                        104
#define IDC_SPLIT                       105
#define IDACCEL                         106

// added ScottT
#define IDI_BADICON                     107
#define IDI_COMPUTER                    108
#define IDI_HUB                         109
#define IDI_NODEVICE                    110

#define IDC_TREE                        1000
#define IDC_EDIT                        1001
#define IDC_STATUS                      1002
#define ID_EXIT                         40001
#define ID_REFRESH                      40002
#define ID_AUTO_REFRESH                 40003
#define ID_CONFIG_DESCRIPTORS           40004
#define ID_ABOUT                        40005
#define IDC_STATIC                      0xFFFFFFFF


#define VER_PRODUCTVERSION_STR			"ubzh.com"

Euopenler 21.09 sudo Yum Update Error: Errors during downloading metadata for repository ‘EPOL’

openEuler
openEuler-21.09-everything-x86_64-dvd.iso
sudo yum update error

EPOL
Errors during downloading metadata for repository 'EPOL':
	-Status code: 404 for htpp://repo.openeuler.org/openEuler-21.09/EPOL/repomd.xml

Please note that:

sudo vi/etc/yum.rest.d/openeuler.repo

Please note that

[EPOL]
name=EPOL
baseurl=http://repo.openeuler.org/openEuler-21.09/EPOL/$basearch/
enabled=1
gpgcheck=1
gpgkey=http://repo.openeuler.org/openEuler-21.09/OS/$basearch/RPM-GPG-KEY-openEuler

The correct address is:

name=EPOL
baseurl= http://repo.openeuler.org/openEuler-21.09/EPOL/main/ $basearch/

Save, exit and execute again.

Error in configuring Hadoop 3.1.3: attempting to operate on yarn nodemanager as root error

This may occur when HDFS and yarn services are turned on, and when HDFS and yarn services are turned off using scripts, the

solution may also occur

Add the following parameters to the top of start-dfs.sh and stop-dfs.sh (in SBIN of Hadoop installation directory)

HDFS_DATANODE_USER=root
HADOOP_SECURE_DN_USER=hdfs
HDFS_NAMENODE_USER=root
HDFS_SECONDARYNAMENODE_USER=root

Add the following parameters to the top of start-yarn.sh and stop-yarn.sh (in SBIN of Hadoop installation directory)

YARN_RESOURCEMANAGER_USER=root
HADOOP_SECURE_DN_USER=yarn
YARN_NODEMANAGER_USER=root

Successfully solved the problem

[Solved] git error – remote: http basic: access denied

After using the git push command, an error is reported as follows:

another error is:

git Failed to connect to port xxxx: Connection refused

based on these two situations, the account and password logged in at the time of the first use are largely inconsistent with the current warehouse account password, so the user will be prompted to connect without permission or refuse access. At this time, the best way is to reset the GIT account password!

Solution:

first enter the local warehouse directory, then right-click “git bash here”, and enter the following instructions in the pop-up terminal input box:

git config --system --unset credential.helper

Then use the git push command again to guide you to enter the account and password again. After you enter it correctly, you can connect to the remote warehouse successfully!!

The problem of recipe terminated with error. Retry building the project. Occurs when vscode configures latex 

{
    // Latex workshop
    "latex-workshop.latex.tools": [
          {
            "name": "latexmk",
            "command": "latexmk",
            "args": [
            "-synctex=1",
            "-interaction=nonstopmode",
            "-file-line-error",
            "-pdf",
            "%DOC%"
            ]
          },
          {
            "name": "xelatex",
            "command": "xelatex",
            "args": [
            "-synctex=1",
            "-interaction=nonstopmode",
            "-file-line-error",
            "%DOC%"
              ]
          },          
          {
            "name": "pdflatex",
            "command": "pdflatex",
            "args": [
            "-synctex=1",
            "-interaction=nonstopmode",
            "-file-line-error",
            "%DOC%"
            ]
          },
          {
            "name": "bibtex",
            "command": "bibtex",
            "args": [
            "%DOCFILE%"
            ]
          }
        ],
    "latex-workshop.latex.recipes": [
          {
            "name": "xelatex",
            "tools": [
            "xelatex"
                        ]
                  },
          {
            "name": "latexmk",
            "tools": [
            "latexmk"
                        ]
          },

          {
            "name": "pdflatex -> bibtex -> pdflatex*2",
            "tools": [
            "pdflatex",
            "bibtex",
            "pdflatex",
            "pdflatex"
                        ]
          }
        ],
    "latex-workshop.view.pdf.viewer": "tab",
    "latex-workshop.latex.clean.enabled": true,
    "latex-workshop.latex.clean.fileTypes": [
        "*.aux",
        "*.bbl",
        "*.blg",
        "*.idx",
        "*.ind",
        "*.lof",
        "*.lot",
        "*.out",
        "*.toc",
        "*.acn",
        "*.acr",
        "*.alg",
        "*.glg",
        "*.glo",
        "*.gls",
        "*.ist",
        "*.fls",
        "*.log",
        "*.fdb_latexmk"
      ],

}

[Solved] Web server failed to start. Port 8080 was already in use.

An error occurs when starting the jar package on the Linux server, as follows:

Description:
Web server failed to start. Port 8080 was already in use.
action:
identify and stop the process that’s listening on port 8080 or configure this application to listen on another port.
indicates that the web server failed to start and port 8080 is already in use. Check whether the last started task stopped

Solution steps:

1. Enter the bin directory
CD/usr/local/Tomcat/bin

2. Check whether Tomcat is closed
PS – EF | grep Java

3. Use the Tomcat shutdown command
./shutdown.sh (use with caution)
if you want to kill Tomcat directly, you can use the kill command to kill the process directly
kill – 9 7010