草庐IT

ruby - 尝试保存大(ish)整数值时出现错误指示数字为 "out of range for ActiveRecord::Type::Integer with limit 4"

我在我的Ruby应用程序中使用SQLite+ActiveRecord,这是我在尝试将大数字写入整数字段时遇到的错误:1428584647765isoutofrangeforActiveRecord::Type::Integerwithlimit4但是根据SQLite文档:Thevalueisasignedinteger,storedin1,2,3,4,6,or8bytesdependingonthemagnitudeofthevalue.8个字节足以存储整数1428584647765,那么为什么ActiveRecord会给我一个错误?为什么它认为这是一个4字节的字段?

laravel - net::ERR_CONNECTION_TIMED_OUT error in laravel echo with redis driver

我正在使用带有redis驱动程序的laravel-echo来广播通知。它在我的本地系统上完美运行。但是在我的服务器上,我收到了ERR_CONNECTION_TIMED_OUT错误。浏览器控制台显示http://ex.example.com:6001/socket.io/socket.io.jsnet::ERR_CONNECTION_TIMED_OUT。我对socket和redis一无所知。所以我只是按照laravelofficialdoc的说明进行操作和laravel-echo-server.并仅对here进行了一处更改.但是在这个改变的帮助下,我能够让执行剩余的js脚本。socket

laravel - net::ERR_CONNECTION_TIMED_OUT error in laravel echo with redis driver

我正在使用带有redis驱动程序的laravel-echo来广播通知。它在我的本地系统上完美运行。但是在我的服务器上,我收到了ERR_CONNECTION_TIMED_OUT错误。浏览器控制台显示http://ex.example.com:6001/socket.io/socket.io.jsnet::ERR_CONNECTION_TIMED_OUT。我对socket和redis一无所知。所以我只是按照laravelofficialdoc的说明进行操作和laravel-echo-server.并仅对here进行了一处更改.但是在这个改变的帮助下,我能够让执行剩余的js脚本。socket

Vivado报错:[Opt 31-67] Problem: A LUT6 cell in the design is missing a connection on input pin I5

一、报错原文展示具体报错内容如下:[Opt31-67]Problem:ALUT6cellinthedesignismissingaconnectiononinputpinI5,whichisusedbytheLUTequation.Thispinhaseitherbeenleftunconnectedinthedesignortheconnectionwasremovedduetothetrimmingofunusedlogic.TheLUTcellnameis:design_1_i/pingpang_write_buff_0/inst/FSM_sequential_ram_wr_state[

Vivado报错:[Opt 31-67] Problem: A LUT6 cell in the design is missing a connection on input pin I5

一、报错原文展示具体报错内容如下:[Opt31-67]Problem:ALUT6cellinthedesignismissingaconnectiononinputpinI5,whichisusedbytheLUTequation.Thispinhaseitherbeenleftunconnectedinthedesignortheconnectionwasremovedduetothetrimmingofunusedlogic.TheLUTcellnameis:design_1_i/pingpang_write_buff_0/inst/FSM_sequential_ram_wr_state[

解决git报错:ssh:connect to host github.com port 22: Connection timed out

如题,git使用中突然报错ssh:connecttohostgithub.comport22:Connectiontimedout通过查阅各种资料,得知原因可能是由于电脑的防火墙或者其他网络原因导致ssh连接方式端口22被封锁。解决方法一:抛弃ssh连接方式,使用http连接。gitconfig--local-e将配置文件的url=git@github.com:username/repo.git一行改为:url=https://github.com/username/repo.git方法二:如果22号端口不行,那就换一个端口进入.ssh文件夹 创建一个config文件将下面的内容复制进去Hos

pycharm搜索不到软件包/Reload List of Packages Error updating package list: Connect timed out

ClickonPyCharm>Preferences>AppearanceandBehavior>SystemSettings->HTTPProxyselectAuto-detectproxysettingsClickApply

could not find java in ES_JAVA_HOME at /root/opt/elastic/elasticsearch-8.1.2/jdk/bin/java

报错信息es@MEPRDAPP01:/root/opt/elastic/elasticsearch-8.1.2>java-versionjavaversion"1.8.0_221"Java(TM)SERuntimeEnvironment(build1.8.0_221-b11)JavaHotSpot(TM)64-BitServerVM(build25.221-b11,mixedmode)es@MEPRDAPP01:/root/opt/elastic/elasticsearch-8.1.2>shstart.shcouldnotfindjavainES_JAVA_HOMEat/root/opt/el

could not find java in ES_JAVA_HOME at /root/opt/elastic/elasticsearch-8.1.2/jdk/bin/java

报错信息es@MEPRDAPP01:/root/opt/elastic/elasticsearch-8.1.2>java-versionjavaversion"1.8.0_221"Java(TM)SERuntimeEnvironment(build1.8.0_221-b11)JavaHotSpot(TM)64-BitServerVM(build25.221-b11,mixedmode)es@MEPRDAPP01:/root/opt/elastic/elasticsearch-8.1.2>shstart.shcouldnotfindjavainES_JAVA_HOMEat/root/opt/el

FATAL ERROR: Reached heap limit Allocation failed - JavaScript heap out of memory

原因JavaScript内存不足,指的就是Node,Node基于V8引擎,Node中通过script使用的内存只是很小的一部分(64位系统下约为1.4GB,32位系统下约为0.7GB),当我们的开发中包比较大时,就容易形成内存不足。解决方法(设置增加内存)方法一"serve":"node--max_old_space_size=4096node_modules/@vue/cli-service/bin/vue-cli-service.jsserve"或者"serve":"npx--max_old_space_size=4096node_modules/@vue/cli-service/bin/