Closed Sod-Almighty closed 5 years ago
directhex
commented
5 years ago echo "deb https://download.mono-project.com/repo/ubuntu vs-bionic main" | tee /etc/apt/sources.list.d/mono-official-vs.list
You said you were running Ubuntu 18.04, but Depends: libc6 (>= 2.27) but 2.24-11+deb9u3 is to be installed indicates you are running Debian 9.
Please try the Debian 9 repository.
Sod-Almighty
commented
5 years ago My mistake. I loaded the Debian VM instead of the Ubuntu VM. I shall try with the Ubuntu.
However, the instructions for Debian 9 do not work. This is why I installed an Ubuntu VM in the first place. It will also not work on Linux Mint 18, using either the Debian or the Ubuntu instructions.
Sod-Almighty
commented
5 years ago Forget it. Seems OpenRegistryKey doesn't work properly in Mono anyway, so it's a broken and useless system. Therefore I will not be using it.
For reference, the registry issue is:
var key = Registry.CurrentUser.OpenSubKey(@"Software\Infinity Computers", false);Doesn't work, even though ~/.mono/registry/CurrentUser/Software/Infinity Computers exists. Plus, it seems confused as to the difference between Software and software; and also as to whether the Infinity Computers key exists or not.
In short, Mono is hideously broken. As are your Debian install instructions.
directhex
commented
5 years ago I've refreshed the install steps to cover installing eeeeeverything which a default minimal install ought to have but isn't Essential: yes in apt. This should help users working from less-than-minimal environments.
directhex
commented
5 years ago Mono's registry code normalizes everything to lower case, as a cheap tactic to avoid the case-sensitive nature of Linux filesystems. Basic registry behaviour works fine.
csharp> using Microsoft.Win32;
csharp> var key = Registry.CurrentUser.OpenSubKey(@"Software\Infinity Computers", false);
csharp> Console.WriteLine(key);
csharp> Registry.CurrentUser.CreateSubKey(@"Software\Infinity Computers");
HKEY_CURRENT_USER\software\infinity computers
csharp> var key = Registry.CurrentUser.OpenSubKey(@"Software\Infinity Computers", false);
csharp> Console.WriteLine(key);
HKEY_CURRENT_USER\software\infinity computers
csharp> key.SetValue("test","hello");
System.UnauthorizedAccessException: Cannot write to the registry key.
at Microsoft.Win32.RegistryKey.SetValue (System.String name, System.Object value) <0x7fbe5f8993b0 + 0x00089> in <5d239b60268442e0bbd07c6bd91f112b>:0
at (wrapper remoting-invoke-with-check) Microsoft.Win32.RegistryKey.SetValue(string,object)
at <InteractiveExpressionClass>.Host (System.Object& $retval) [0x00000] in <7f1416fd1e9c49a390aabb08aff017b3>:0
at Mono.CSharp.Evaluator.Evaluate (System.String input, System.Object& result, System.Boolean& result_set) [0x00038] in <e79f04cd418a4ed19206f5d5f91d1168>:0
at Mono.CSharpShell.Evaluate (System.String input) [0x00000] in <554e229716694e86af3f932c4980ee29>:0
csharp> var key = Registry.CurrentUser.OpenSubKey(@"Software\Infinity Computers", true);
csharp> key.SetValue("test","hello");
csharp> Console.WriteLine(System.IO.File.ReadAllText("/home/directhex/.mono/registry/CurrentUser/software/infinity computers/values.xml"));
<values>
<value name="test"
type="string">hello</value>
</values>Mono's registry code normalizes everything to lower case, as a cheap tactic to avoid the case-sensitive nature of Linux filesystems. Basic registry behaviour works fine.
No, it does not.
I needed to import a .reg file, and did so by manually creating the directories on the command line and then manually writing a values.xml file. (Which, might I add, is an unhelpfully long-winded process, which would benefit from a little automation. Suppose the .reg file had dozens of entries?)
Normalising to lower case is fine, but failing to notice the existence of keys simply because they contain upper-case characters is stupid and unhelpful. Not only is it trivial to check for the case-insensitive existence of a file; but also this dumb limitation is not documented anywhere that I could find. Hell, the location of the values.xml file itself is practically a secret - the only reference I could find anywhere on the Internet was here. How are people supposed to use Mono if there's no goddamn documentation?
In addition, how am I supposed to trust Mono enough to put time and effort into developing software for it, when I've already found at least two bugs (one I haven't mentioned) and one broken installation guide, in only a few hours? Not to mention the five hundred and seventy one other issues on this tracker.
sandyarmstrong
commented
5 years ago Installation instructions are correct now (if they weren't before).
Mono bugs can be filed at https://github.com/mono/mono/issues, if you find any. The mono/monodevelop repository is specifically for the IDE. Thank you for testing.
I cannot install MonoDevelop in a freshly-installed Ubuntu 18.04.1. I have followed the instructions.
Now, thing is, Ubuntu 18 is the first target operating system in your installation instructions. Is it too much to ask that the instructions actually work? Or did I seriously manage to somehow balls up such a simple set of instructions?