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真机在连接XCode进行真机测试是，真机的IOS系统如果高于XCode模拟器所能提供的版本，一般会提示： Could not find Developer Disk Image 解决办法： 1，升级XCode版本到最新的版本，因为本地AppStore有时网速比较慢，可以直接去AppDeveloper下载： https://developer.apple.com/downloads/ （注册一个AppleId就可以） 2，下载对应缺失的模拟器版本： 通过 方式一： 使用快捷键：Shift+command+G ，打开界面： 输入：/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/DeviceSupport将缺失的文件放进去即可。 方式二： 使用快捷键：Shift+Command+A 打开应用界面： 点击XCode，右键，显示包内容：Contents-->Developer-->Platforms-->iPhoneOS.platform-->DeviceSupport 注意：上面的两个快捷键，只在Finder获取焦点时起效。 来源： oschina 链接： https://my.oschina.net/u/223340/blog/671078

I have to use custom OkHttpClient so I can add headers to the image requests. The problem is Picasso won't cache any images on disk because of this. I've used setIndicatorsEnabled(true) to check caching and I see only red indicators. When I use default OkHttpDownloader all is ok. Below is my Picasso initialization code. So does anyone encounter the same problem? public static void init(Context context) { Picasso.Builder builder = new Picasso.Builder(context); OkHttpClient client = new OkHttpClient(); client.interceptors().add(new AuthInterceptor()); Downloader downloader = new OkHttpDownloader

This error arrived all out of a sudden. ErrorException in D:\xampp\htdocs\pckg\vendor\laravel\framework\src\Illuminate\Filesystem\Filesystem.php line 81: file_put_contents(): Only 0 of 3520 bytes written, possibly out of free disk space I just freed / cleared the laravel.log file in the storage/logs folder. Also clearing cache & sessions folders in storage/framework folder can help. It just cleared the error and the login page was loaded again ! The main issue is laravel.log file. For me the file size has grown upto 24G, clearing the file made everything fine. Use command sudo truncate -s 0

Can anyone tell me how I can get a list of the available disk drives in ruby? I am creating an open file dialogue and need to know! Thanks in advance, ell. Ell The article Brian gave correctly states the following code: require 'win32ole' file_system = WIN32OLE.new("Scripting.FileSystemObject") drives = file_system.Drives drives.each do |drive| puts "Available space: #{drive.AvailableSpace}" puts "Drive letter: #{drive.DriveLetter}" puts "Drive type: #{drive.DriveType}" puts "File system: #{drive.FileSystem}" puts "Is ready: #{drive.IsReady}" puts "Path: #{drive.Path}" puts "Root folder: #

I've got a little program that reads and writes files on disk. Breaking it down to the most simple level, it reads bytes from one file stream and writes them to another. It performs its duties fine, but it isn't the fastest thing. I've seen other applications that can tear through a gigabyte or more of reads/writes in amazing speeds. Obviously they're operating closer to the metal than a little .NET app. What are the most efficient .NET APIs for streaming to/from the disk? What win32 APIs are available (and worth p/invoking for) for speedy disk access? LBushkin Fast file I/O is less about the

In this question someone asked for ways to display disk usage in Linux. I'd like to take this one step further down the cli-path... how about a shell script that takes the output from something like a reasonable answer to the previous question and generates a graph/chart from it (output in a png file or something)? This may be a bit too much code to ask for in a regular question, but my guess is that someone already has a oneliner laying around somewhere... I would recommend munin . It is designed for exactly this sort of thing - graphing CPU usage, memory usage, disc-usage and such. sort of