ubuntu安装PyQt5时出现如下问题如何解决?
qt.qpa.xcb: could not connect to display 
qt.qpa.plugin: Could not load the Qt platform plugin "xcb" in "" even though it was found.
This application failed to start because no Qt platform plugin could be initialized. Reinstalling the application may fix this problem.

Available platform plugins are: eglfs, linuxfb, minimal, minimalegl, offscreen, vnc, wayland-egl, wayland, wayland-xcomposite-egl, wayland-xcomposite-glx, webgl, xcb.


qt安装路径是在

/home/ubuntu/.pyenv/versions/3.6.8/lib/python3.6/site-packages (5.12.1)

搞了一天了怎么办

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我增加打印时出现如下提示,如何解决
我的机子装的是WIN2000专业版,原来是装有打印机的,昨天装bitware传真软件后,打印机没有了,重新装打印机出现如下提示。rnrn“缺少资源,打印机操作无法继续,打印子系统不可使用。”rn我看了服务:spoolsv服务是停止的,我启动后,又装打印机,又停止了。不知何原因。rnrn请高手指点,多谢!!
在进行左连接查询时出现如下提示,如何解决?
使用Sybase数据库是出现的问题,急等解决,Sybase那边没人回答,这边人气旺,来问问。rn在进行左连接查询或者排序时出现如下提示,如何解决?rnThe transaction log in database tempdb is almost full. Your transaction is being suspended until space is made available in the log.rn
asp读取EXCEL时出现如下错误,如何解决?
Microsoft VBScript 编译器错误 错误 '800a03f6' rnrn缺少 'End' rnrn/iisHelp/common/500-100.asp,行242 rnrnMicrosoft OLE DB Provider for ODBC Drivers 错误 '80004005' rnrn[Microsoft][ODBC Excel Driver]常见错误 不能打开注册表关键字 'Temporary (volatile) Jet DSN for process 0x7d8 Thread 0x880 DBC 0x14a939c Excel'。 rnrn/gyscx/daoru/conn_excel.asp,行4 rnrn-------------------------------------rn连接串如下:rnconn_excel.asprn<% rnSet conn_xls=Server.CreateObject("ADODB.Connection") rnStrConn_xls="Driver=Microsoft Excel Driver (*.xls);DBQ="& Server.MapPath("t.xls")rnconn_xls.Open StrConn_xlsrn%>rnrn浏览程序如下:rnrnrn<%rn'//打开EXCEL表rnSql_xls="select * from [Sheet1$]"rnSet rs = Server.CreateObject("ADODB.Recordset") rnrs.Open Sql_xls,conn_xls,3,2,1rn%>rnrn<%rn'//把EXCEL表里的数据导入ORACLErn%>rn rn rn 名称rn 性别rn 年龄rn 日期rn rn <%do while Not rs.EOF%>rn rn <%=rs(0)%>rn <%=rs(1)%>rn <%=rs(2)%>rn rn rn <%rnrs.MoveNextrnLooprn %>rn
我在ORACLE中创建表时出现如下提示如何解决???
请问:我在ORACLE中创建表时出现如下提示如何解决???rnrnspace quota exceeded for tablespace 'user_data'rnrn???rnrn请详细解答,谢谢!!!
SOS:编译内核时出现如下错误提示,如何解决!谢谢
scripts/split-include include/linux/autoconf.h include/configrnFIND: 参数格式不正确rnscripts/split-include: find: No errorrnmake: *** [include/config/MARKER] Error 1rn
启动后出现如下提示,如何解决?
WINDOWS无法加载配置文件,但已经用系统的默认配置文件登录rndetail--系统资源不足无法完成请求的任务
winform下出现如下的错误,该如何解决?
SqlConnection con=new SqlConnection("server=***;uid=ufsubsys;database=***;pwd=***");rnstring strsql="***************";rnSqlDataAdapter da=new SqlDataAdapter(strsql,con);rnDset ds_fh=new Dset();rnda.Fill(ds_fh,"t_sale_report"); //填充时出错rncyreport_fh report_fh=new cyreport_fh();rnreport_fh.SetDataSource(ds_fh);rnthis.crystalReportViewer1.ReportSource=report_fh;rnrn错误提示如下:rn 未处理的“System.Data.ConstraintException”rn 类型的异常出现在 system.data.dll 中rnrn 其他信息:未能启用约束。rn 一行或多行中包含违反非空、唯一或外键约束的值。rnrn
请问出现如下异常如何解决?
在程序运行中出现问题对话框,提示:Unhandled exception in test.exe (MSVCRTD.dll):0xC000005:Access Violation.请问如何解决?
出现如下错误提示:如何解决?谢谢诸位了
Internal Server ErrorrnThe server encountered an internal error or misconfiguration and was unable to complete your request.rnPlease contact the server administrator, root@localhost and inform them of the time the error occurred, and anything you might have done that may have caused the error.rnrnMore information about this error may be available in the server error log.rnrnrnrn--------------------------------------------------------------------------------rnrnApache/1.3.20 Server at 127.0.0.1 Port 80
出现如下错误提示,请问如何解决?
javax.servlet.ServletException: [HTTP:101249][ServletContext(id=5338666,name=test,context-path=/test)]: Servlet class com.ht.servlet.CheckAccount for servlet CheckAccount could not be loaded because the requested class was not found in the classpath C:\bea\user_projects\domains\mydomain\applications\test\WEB-INF\classes;C:\bea\user_projects\domains\mydomain\myserver\.wlnotdelete\extract\myserver__appsdir_test_dir_test.rnjava.lang.UnsupportedClassVersionError: com/ht/servlet/CheckAccount (Unsupported major.minor version 49.0).rn at weblogic.servlet.internal.ServletStubImpl.prepareServlet(ServletStubImpl.java:834)rn at weblogic.servlet.internal.ServletStubImpl.getServlet(ServletStubImpl.java:535)rn at weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java:373)rn at weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java:315)rn at weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.run(WebAppServletContext.java:6718)rn at weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:321)rn at weblogic.security.service.SecurityManager.runAs(SecurityManager.java:121)rn at weblogic.servlet.internal.WebAppServletContext.invokeServlet(WebAppServletContext.java:3764)rn at weblogic.servlet.internal.ServletRequestImpl.execute(ServletRequestImpl.java:2644)rn at weblogic.kernel.ExecuteThread.execute(ExecuteThread.java:219)rn at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:178)
VC运行时出现如下错误,如何解决?
Compiling...rnTerminal.cpprnTerminalDoc.cpprnTerminalView.cpprnSetupDlg.cpprnG:\Vcstudy\Test\Terminal\SetupDlg.cpp(38) : error C2664: 'DDX_CBIndex' : cannot convert parameter 3 from 'class CString' to 'int &'rn A reference that is not to 'const' cannot be bound to a non-lvaluernG:\Vcstudy\Test\Terminal\SetupDlg.cpp(43) : error C2664: 'DDX_CBIndex' : cannot convert parameter 3 from 'class CString' to 'int &'rn A reference that is not to 'const' cannot be bound to a non-lvaluernG:\Vcstudy\Test\Terminal\SetupDlg.cpp(45) : error C2664: 'DDX_CBIndex' : cannot convert parameter 3 from 'class CString' to 'int &'rn A reference that is not to 'const' cannot be bound to a non-lvaluernGenerating Code...rnError executing cl.exe.rnrnTerminal.exe - 3 error(s), 0 warning(s)
电脑出现如下的故障要如何解决?
0X00000000指令引用的0X00000000内存。该内存不能为“read”。rn要终止程序,请单击“确定”。rn要调试程序,请单击“取消”。
出现如下提示是怎么回事?如何解决?
操作必须使用一个可更新的查询。rnDescription: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code. rnrnException Details: System.Data.OleDb.OleDbException: 操作必须使用一个可更新的查询。rnrnSource Error: rnrnAn unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below. rn
安装软件出现如下错误,如何解决
Setup could not initialize its default properties. Please reboot your system and try installation again. If the problem persists, conctact technical support.
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