Scott Hanselman

Options for CSS and JS Bundling and Minification with ASP.NET Core

March 18, '17 Comments [19] Posted in ASP.NET | DotNetCore
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Maria and I were updating the NerdDinner sample app (not done yet, but soon) and were looking at various ways to do bundling and minification of the JSS and CS. There's runtime bundling on ASP.NET 4.x but in recent years web developers have used tools like Grunt or Gulp to orchestrate a client-side build process to squish their assets. The key is to find a balance that gives you easy access to development versions of JS/CSS assets when at dev time, while making it "zero work" to put minified stuff into production. Additionally, some devs don't need the Grunt/Gulp/npm overhead while others absolutely do. So how do you find balance? Here's how it works.

I'm in Visual Studio 2017 and I go File | New Project | ASP.NET Core Web App. Bundling isn't on by default but the configuration you need IS included by default. It's just minutes to enable and it's quite nice.

In my Solution Explorer is a "bundleconfig.json" like this:

// Configure bundling and minification for the project.
// More info at https://go.microsoft.com/fwlink/?LinkId=808241
[
{
"outputFileName": "wwwroot/css/site.min.css",
// An array of relative input file paths. Globbing patterns supported
"inputFiles": [
"wwwroot/css/site.css"
]
},
{
"outputFileName": "wwwroot/js/site.min.js",
"inputFiles": [
"wwwroot/js/site.js"
],
// Optionally specify minification options
"minify": {
"enabled": true,
"renameLocals": true
},
// Optionally generate .map file
"sourceMap": false
}
]

Pretty simple. Ins and outs. At the top of the VS editor you'll see this yellow prompt. VS knows you're in a bundleconfig.json and in order to use it effectively in VS you grab a small extension. To be clear, it's NOT required. It just makes it easier. The source is at https://github.com/madskristensen/BundlerMinifier. Slip this UI section if you just want Build-time bundling.

BundleConfig.json

If getting a prompt like this bugs you, you can turn all prompting off here:

Tools Options HTML Advanced Identify Helpful Extensions

Look at your Solution Explorer. See under site.css and site.js? There are associated minified versions of those files. They aren't really "under" them. They are next to them on the disk, but this hierarchy is a nice way to see that they are associated, and that one generates the other.

Right click on your project and you'll see this Bundler & Minifier menu:

Bundler and Minifier Menu

You can manually update your Bundles with this item as well as see settings and have bundling show up in the Task Runner Explorer.

Build Time Minification

The VSIX (VS extension) gives you the small menu and some UI hooks, but if you want to have your bundles updated at build time (useful if you don't use VS!) then you'll want to add a NuGet package called BuildBundlerMinifier.

You can add this NuGet package SEVERAL ways. Which is awesome.

  • Add it from the Manage NuGet Packages menu
  • Add it from the command line via "dotnet add package BuildBundlerMinifier"
    • Note that this adds it to your csproj without you having to edit it! It's like "nuget install" but adds references to projects!  The dotnet CLI is lovely.
  • If you have the VSIX installed, just right-click the bundleconfig.json and click "Enable bundle on build..." and you'll get the NuGet package.
    Enable bundle on build

Now bundling will run on build...

c:\WebApplication8\WebApplication8>dotnet build
Microsoft (R) Build Engine version 15
Copyright (C) Microsoft Corporation. All rights reserved.

Bundler: Begin processing bundleconfig.json
Bundler: Done processing bundleconfig.json
WebApplication8 -> c:\WebApplication8\bin\Debug\netcoreapp1.1\WebApplication8.dll

Build succeeded.
0 Warning(s)
0 Error(s)

...even from the command line with "dotnet build." It's all integrated.

This is nice for VS Code or users of other editors. Here's how it would work entirely from the command prompt:

$ dotnet new mvc
$ dotnet add package BuildBundlerMinifier
$ dotnet restore
$ dotnet run

Advanced: Using Gulp to handle Bundling/Minifying

If you outgrow this bundler or just like Gulp, you can right click and Convert to Gulp!

Convert to Gulp

Now you'll get a gulpfile.js that uses the bundleconfig.json and you've got full control:

gulpfile.js

And during the conversion you'll get the npm packages you need to do the work automatically:

npm and bower

I've found this to be a good balance that can get quickly productive with a project that gets bundling without npm/node, but I can easily grow to a larger, more npm/bower/gulp-driven front-end developer-friendly app.


Sponsor: Did you know VSTS can integrate closely with Octopus Deploy? Join Damian Brady and Brian A. Randell as they show you how to automate deployments from VSTS to Octopus Deploy, and demo the new VSTS Octopus Deploy dashboard widget. Register now!

About Scott

Scott Hanselman is a former professor, former Chief Architect in finance, now speaker, consultant, father, diabetic, and Microsoft employee. He is a failed stand-up comic, a cornrower, and a book author.

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ZEIT now deployments of open source ASP.NET Core web apps with Docker

March 15, '17 Comments [15] Posted in ASP.NET | Docker | DotNetCore
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ZEIT is a new cloud service and "now" is the name of their deployment tool. ZEIT World is their DNS service. If you head over to https://zeit.co/ you'll see a somewhat cryptic animated gif that shows how almost impossibly simple it is to deploy a web app with ZEIT now.

ZEIT works with .NET Core and ASP.NET

You can make a folder, put an index.html (for example) in it and just run "now." You'll automatically get a website with an autogenerated name and it'll be live. It's probably the fastest and easiest deploy I've ever seen. Remember when Heroku (then Azure, then literally everyone) started using git for deployment? Clearly being able to type "now" and just get a web site on the public internet was the next step. (Next someone will make "up" which will then get replaced with just pressing ENTER on an empty line! ;) )

Jokes aside, now is clean and easy. I appreciate their organizational willpower to make an elegant and simple command line tool. I suspect it's harder than it looks to keep things simple.

All of their examples use JavaScript and node.js, but they also support Docker, which means they support open source ASP.NET Core on .NET Core! But do they know they do? ;) Let's find out.

And more importantly, how easy is it? Can I take a site from concept to production in minutes? Darn tootin' I can.

First, make a quick ASP.NET Core app. I'll use the MVC template with Bootstrap.

C:\Users\scott\zeitdotnet>dotnet new mvc
Content generation time: 419.5337 ms
The template "ASP.NET Core Web App" created successfully.

I'll do a quick dotnet restore to get the packages for my project.

C:\Users\scott\zeitdotnet>dotnet restore
Restoring packages for C:\Users\scott\zeitdotnet\zeitdotnet.csproj...
Generating MSBuild file C:\Users\scott\zeitdotnet\obj\zeitdotnet.csproj.nuget.g.props.
Generating MSBuild file C:\Users\scott\zeitdotnet\obj\zeitdotnet.csproj.nuget.g.targets.
Writing lock file to disk. Path: C:\Users\scott\zeitdotnet\obj\project.assets.json
Restore completed in 2.93 sec for C:\Users\scott\zeitdotnet\zeitdotnet.csproj.

NuGet Config files used:
C:\Users\scott\AppData\Roaming\NuGet\NuGet.Config
C:\Program Files (x86)\NuGet\Config\Microsoft.VisualStudio.Offline.config

Feeds used:
https://api.nuget.org/v3/index.json
C:\LocalNuGet
C:\Program Files (x86)\Microsoft SDKs\NuGetPackages\

Now I need to add a Dockerfile. I'll make one in the root that looks like this:

FROM microsoft/aspnetcore
LABEL name="zeitdotnet"
ENTRYPOINT ["dotnet", "zeitdotnet.dll"]
ARG source=.
WORKDIR /app
EXPOSE 80
COPY $source .

Note that I could have ZEIT build my app for me if I used the aspnetcore Dockerfile that includes the .NET Core SDK, but that would not only make my deployment longer, it would also make my docker images a LOT larger. I want to include JUST the .NET Core runtime in my image, so I'll build and publish locally.

ZEIT now is going to need to see my Dockerfile, and since I want my app to include the binaries (I don't want to ship my source in the Docker image up to ZEIT) I need to mark my Dockerfile as "Content" and make sure it's copied to the publish folder when my app is built and published.

<ItemGroup>
  <None Remove="Dockerfile" />
</ItemGroup>

<ItemGroup>
  <Content Include="Dockerfile">
    <CopyToOutputDirectory>Always</CopyToOutputDirectory>
  </Content>
</ItemGroup>

I'll add this my project's csproj file. If I was using Visual Studio, this is the same as right clicking on the Properties of the Dockerfile, setting it to Content and then "Always Copy to Output Directory."

Now I'll just build and publish to a folder with one command:

C:\Users\scott\zeitdotnet>dotnet publish
Microsoft (R) Build Engine version 15.1.548.43366
Copyright (C) Microsoft Corporation. All rights reserved.

zeitdotnet -> C:\Users\scott\zeitdotnet\bin\Debug\netcoreapp1.1\zeitdotnet.dll

And finally, from the .\bin\Debug\netcoreapp1.1\ folder I run "now." (Note that I've installed now and signed up for their service, of course.)

C:\Users\scott\zeitdotnet\bin\Debug\netcoreapp1.1\publish>now
> Deploying ~\zeitdotnet\bin\Debug\netcoreapp1.1\publish
> Ready! https://zeitdotnet-gmhcxevqkf.now.sh (copied to clipboard) [3s]
> Upload [====================] 100% 0.0s
> Sync complete (196.18kB) [2s]
> Initializing…
> Building
> ▲ docker build
> ---> 035a0a1401c3
> Removing intermediate container 289b9e4ce5d9
> Step 6 : EXPOSE 80
> ---> Running in efb817308333
> ---> fbac2aaa3039
> Removing intermediate container efb817308333
> Step 7 : COPY $source .
> ---> ff009cfc48ea
> Removing intermediate container 8d650c1867cd
> Successfully built ff009cfc48ea
> ▲ Storing image
> ▲ Deploying image
> Deployment complete!

Now has put the generated URL in my clipboard (during deployment you'll get redirected to a lovely status page) and when it's deployed I can visit my live site. But, that URL is not what I want. I want to use a custom URL.

I can take one of my domains and set it up with ZEIT World's DNS but I like DNSimple (ref).

I can add my domain as an external one after adding a TXT record to my DNS to verify I own it. Then I setup a CNAME to point my subdomain to alias.zeit.co.

C:\Users\scott\Desktop\zeitdotnet>now alias https://zeitdotnet-gmhcxevqkf.now.sh http://zeitdotnet.hanselman.com
> zeitdotnet.hanselman.com is a custom domain.
> Verifying the DNS settings for zeitdotnet.hanselman.com (see https://zeit.world for help)
> Verification OK!
> Provisioning certificate for zeitdotnet.hanselman.com
> Success! Alias created:
https://zeitdotnet.hanselman.com now points to https://zeitdotnet-gmhcxevqkf.now.sh [copied to clipboard]

And that's it. It even has a nice SSL certificate that they applied for me. It doesn't terminate to SSL all the way into the docker container's Kestral web server, but for most things that aren't banking it'll be just fine.

All in all, a lovely experience. Here's my Hello World ASP.NE Core app running in ZEIT and deployed with now  at http://zeitdotnet.hanselman.com (if you are visiting this long after this was published, this sample MAY be gone.)

I am still learning about this (this whole exercise was about 30 total minutes and asking Glenn Condron a docker question) so I'm not clear how this would work in a large multi-container deployment, but as long as your site is immutable (don't write to the container's local disk!) ZEIT says it will scale your single containers. Perhaps docker-compose support is coming?


Sponsor: Did you know VSTS can integrate closely with Octopus Deploy? Join Damian Brady and Brian A. Randell as they show you how to automate deployments from VSTS to Octopus Deploy, and demo the new VSTS Octopus Deploy dashboard widget. Register now!

About Scott

Scott Hanselman is a former professor, former Chief Architect in finance, now speaker, consultant, father, diabetic, and Microsoft employee. He is a failed stand-up comic, a cornrower, and a book author.

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Xamarin .NET Workbooks - Interactive Computing is a stellar learning tool

February 24, '17 Comments [15] Posted in DotNetCore | Learning .NET
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I've been thinking a lot about how to best teach .NET and C#/F# to folks who are new to the space. We've added an in-browser no-install C# tutorial at http://dot.net. You can run through almost a few days lessons in C# without installing anything. Heck, it's useful even if you just want to brush up on your skills.

When I spoke with Safia Abdalla a few months ago she re-introduced me to the ideas behind Interactive Computing and the whole ecosystem around Jupyter Notebooks, and the Nteract project Safia works on. It's pretty amazing.

Pythonistas are familiar with Jupyter and the idea of a notebook that cleanly mixes prose and code. This ecosystem is very friendly to data scientists that are (perhaps) more scientist and less developer. People for whom an IDE is not as interesting as "electric paper."

In fact, many people don't realize that the Microsoft Azure Cloud supports hosting of Jupyter Notebooks using Python, R, and F#.

Azure Notebooks

Notebooks are a great learning resource that go beyond a REPL (an simple interactive console) in that they are effectively textbooks with islands of interactive code. It's even more powerful when you consider graphics, charts, and other interactive models.

Xamarin has a thing called Xamarin Workbooks (I'm calling them .NET Workbooks in my head) that you should download and check out RIGHT NOW. Go get Xamarin Workbooks & Inspector for Windows (or download for Mac). Start playing around with workbooks or try out the samples.

I'm going to try teaching my C# and .NET courses for at least the first day or two using Xamarin .NET Workbooks. I think they have huge potential and I'm thrilled that Miguel and friends are investing so much in them. The potential for these as a learning tool that sits between a REPL and an IDE is huge.

The page at https://developer.xamarin.com/workbooks/ is FILLED with amazing example workbooks and lessons, and it's growing. It has section not only on C# but Android, Games, Graphics as a concept, iOS, WPF, and so much more.

I run it and start here:

Xamarin Workbooks

Then I start typing...prose first! Just real sentences. Then I add some code. Notice that I'm not doing Console.WriteLine, I'm just assigning a variable. Xamarin Workbooks makes a nice visualization of my variable.

var scott = "Hanselman"

The prose is ignored (by the compiler) but the code cells and built upon each other and when you execute one you're executing up to that point. Great for building up concepts.

You can print in other libraries and built upon them like in this chart example using the Urho library.

Charts in Xamarin Workbooks

Not to put to fine a point on it, but you can write really fully featured examples or games in Xamarin Workbooks. Here's a fully 3D realized planet earth WITH SATELLITES. Again, with not just sample code but explanatory prose. It's a textbook come to life.

THIS is how I wish I learned programming 25 years ago. I'd loved to have turned (or demo'ed) a .workbook file. I'm thrilled to see C# folks be able to do simple things that Jupyter users have enjoyed for so long.

3D Earth in Xamarin Workbooks

What do you think? Would this be a good way to deliver a course on learning .NET and C#?


Sponsor: Big thanks to Progress! They recently published a comprehensive whitepaper on The State of C#, discussing the history of C#, what’s new in C# 7 and whether C# is still a viable language. Check it out!

About Scott

Scott Hanselman is a former professor, former Chief Architect in finance, now speaker, consultant, father, diabetic, and Microsoft employee. He is a failed stand-up comic, a cornrower, and a book author.

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Stateless 3.0 - A State Machine library for .NET Core

November 11, '16 Comments [38] Posted in DotNetCore | Open Source
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.NET StandardState Machines and business processes that describe a series of states seem like they'll be easy to code but you'll eventually regret trying to do it yourself. Sure, you'll start with a boolean, then two, then you'll need to manage three states and there will be an invalid state to avoid then you'll just consider quitting all together. ;)

"Stateless" is a simple library for creating state machines in C# code. It's recently been updated to support .NET Core 1.0. They achieved this not by targeting .NET Core but by writing to the .NET Standard. Just like API levels in Android abstract away the many underlying versions of Android, .NET Standard is a set of APIs that all .NET platforms have to implement. Even better, the folks who wrote Stateless 3.0 targeted .NET Standard 1.0, which is the broadest and most compatible standard - it basically works everywhere and is portable across the .NET Framework on Windows, .NET Core on Windows, Mac, and LInux, as well as Windows Store apps and all phones.

Sure, there's Windows Workflow, but it may be overkill for some projects. In Nicholas Blumhardt's words:

...over time, the logic that decided which actions were allowed in each state, and what the state resulting from an action should be, grew into a tangle of if and switch. Inspired by Simple State Machine, I eventually refactored this out into a little state machine class that was configured declaratively: in this state, allow this trigger, transition to this other state, and so-on.

A state machine diagram describing the states a Bug can go throughYou can use state machines for anything. You can certainly describe high-level business state machines, but you can also easily model IoT device state, user interfaces, and more.

Even better, Stateless also serialize your state machine to a standard text-based "DOT Graph" format that can then be generated into an SVG or PNG like this with http://www.webgraphviz.com. It's super nice to be able to visualize state machines at runtime.

Modeling a Simple State Machine with Stateless

Let's look at a few code examples. You start by describing some finite states as an enum, and some finite "triggers" that cause a state to change. Like a switch could have On and Off as states and Toggle as a trigger.

A more useful example is the Bug Tracker included in the Stateless source on GitHub. To start with here are the states of a Bug and the Triggers that cause state to change:

enum State { Open, Assigned, Deferred, Resolved, Closed }
enum Trigger { Assign, Defer, Resolve, Close }

You then have your initial state, define your StateMachine, and if you like, you can pass Parameters when a state is trigger. For example, if a Bug is triggered with Assign you can pass in "Scott" so the bug goes into the Assigned state - assigned to Scott.

State _state = State.Open;
StateMachine<State, Trigger> _machine;
StateMachine<State, Trigger>.TriggerWithParameters<string> _assignTrigger;

string _title;
string _assignee;

Then, in this example, the Bug constructor describes the state machine using a fluent interface that reads rather nicely.

public Bug(string title)
{
_title = title;

_machine = new StateMachine<State, Trigger>(() => _state, s => _state = s);

_assignTrigger = _machine.SetTriggerParameters<string>(Trigger.Assign);

_machine.Configure(State.Open)
.Permit(Trigger.Assign, State.Assigned);

_machine.Configure(State.Assigned)
.SubstateOf(State.Open)
.OnEntryFrom(_assignTrigger, assignee => OnAssigned(assignee))
.PermitReentry(Trigger.Assign)
.Permit(Trigger.Close, State.Closed)
.Permit(Trigger.Defer, State.Deferred)
.OnExit(() => OnDeassigned());

_machine.Configure(State.Deferred)
.OnEntry(() => _assignee = null)
.Permit(Trigger.Assign, State.Assigned);
}

For example, when the State is Open, it can be Assigned. But as this is written (you can change it) you can't close a Bug that is Open but not Assigned. Make sense?

When the Bug is Assigned, you can Close it, Defer it, or Assign it again. That's PermitReentry(). Also, notice that Assigned is a Substate of Open.

You can have events that are fired as states change. Those events can take actions as you like.

void OnAssigned(string assignee)
{
if (_assignee != null && assignee != _assignee)
SendEmailToAssignee("Don't forget to help the new employee.");

_assignee = assignee;
SendEmailToAssignee("You own it.");
}

void OnDeassigned()
{
SendEmailToAssignee("You're off the hook.");
}

void SendEmailToAssignee(string message)
{
Console.WriteLine("{0}, RE {1}: {2}", _assignee, _title, message);
}

With a nice State Machine library like Stateless you can quickly model states that you'd ordinarily do with a "big ol' switch statement."

What have you used for state machines like this in your projects?


Sponsor: Big thanks to Telerik! They recently published a comprehensive whitepaper on The State of C#, discussing the history of C#, what’s new in C# 7 and whether C# is still a viable language. Check it out!

About Scott

Scott Hanselman is a former professor, former Chief Architect in finance, now speaker, consultant, father, diabetic, and Microsoft employee. He is a failed stand-up comic, a cornrower, and a book author.

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The mystery of dotnet watch and 'Microsoft.NETCore.App', version '1.1.0-preview1-001100-00' was not found

November 3, '16 Comments [35] Posted in DotNetCore
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dotnet watch says "specified framework not found"

WARNING: This post is full of internal technical stuff. I think it's interesting and useful. You may not.

I had an interesting Error/Warning happen when showing some folks .NET Core recently and I thought I'd deconstruct it here for you, Dear Reader, because it's somewhat multi-layered and it'll likely help you. It's not just about Core, but also NuGet, Versioning, Package Management in general, version pinning, "Tools" in .NET Core, as well as how .NET Runtimes work and version. That's a lot! All that from this little warning. Let's see what's up.

First, let's say you have .NET Core installed. You likely got it from http://dot.net and you have either 1.0.0 or the 1.0.1 update.

Then say you have a website, or any app at all. I made one with "dotnet new -t web" in an empty folder.

I added "dotnet watch" as a tool in the project.json like this. NOTE the "1.0.0-*" there.

"tools": {
"Microsoft.DotNet.Watcher.Tools": "1.0.0-*"
}

dotnet watch is nice because it watches the source code underneath it while running your app. If you change your code files, dotnet-watch will notice, and exit out, then launch "dotnet run" (or whatever, even test, etc) and your app will pick up the changes. It's a nice developer convenience.

I tested this out on last weekend and it worked great. I went to show some folks on Monday that same week and got this error when I typed "dotnet watch."

C:\Users\scott\Desktop\foofoo>dotnet watch
The specified framework 'Microsoft.NETCore.App', version '1.1.0-preview1-001100-00' was not found.
- Check application dependencies and target a framework version installed at:
C:\Program Files\dotnet\shared\Microsoft.NETCore.App
- The following versions are installed:
1.0.0
1.0.1
- Alternatively, install the framework version '1.1.0-preview1-001100-00'.

Let's really look at this. It says "the specified framework...1.1.0" was not found. That's weird, I'm not using that one. I check my project.json and I see:

"Microsoft.NETCore.App": {
"version": "1.0.1",
"type": "platform"
},

So who wants 1.1.0? I typed "dotnet watch." Can I "dotnet run?"

C:\Users\scott\Desktop\foofoo>dotnet run
Project foofoo (.NETCoreApp,Version=v1.0) will be compiled because expected outputs are missing
Compiling foofoo for .NETCoreApp,Version=v1.0
Hosting environment: Production
Content root path: C:\Users\scott\Desktop\foofoo
Now listening on: http://localhost:5000
Application started. Press Ctrl+C to shut down.

Hey, my app runs fine. But if I "dotnet watch" I get an error.

Remember that dotnet watch and other "tools" like it are not dependencies per se, but helpful sidecar apps. Tools can watch, squish css and js, precompile views, and do general administrivia that isn't appropriate at runtime.

It seems it's dotnet watch that wants something I don't have.

Now, I could go install the framework 1.1.0 that it's asking for, and the error would disappear, but would I know why? That would mean dotnet watch would use .NET Core 1.1.0 but my app (dotnet run) would use 1.0.1. That's likely fine, but is it intentional? Is it deterministic and what I wanted?

I'll open my generated project.lock.json. That's the calculated tree of what we ended up with after dotnet restore. It's a big calculated file but I can easily search it. I see two things. The internal details aren't interesting but version strings are.

First, I search for "dotnet.watcher" and I see this:

"projectFileToolGroups": {
".NETCoreApp,Version=v1.0": [
"Microsoft.AspNetCore.Razor.Tools >= 1.0.0-preview2-final",
"Microsoft.AspNetCore.Server.IISIntegration.Tools >= 1.0.0-preview2-final",
"Microsoft.DotNet.Watcher.Tools >= 1.0.0-*",
"Microsoft.EntityFrameworkCore.Tools >= 1.0.0-preview2-final",
"Microsoft.Extensions.SecretManager.Tools >= 1.0.0-preview2-final",
"Microsoft.VisualStudio.Web.CodeGeneration.Tools >= 1.0.0-preview2-final"
]

Ah, that's a reminder that I asked for 1.0.0-*. I asked for STAR for dotnet-watch but everything else was very clear. They were specific versions. I said "I don't care about the stuff after 1.0.0 for watch, gimme whatever's good."

It seems that a new version of dotnet-watch and other tools came out between the weekend and my demo.

Search more in project.lock.json and I can see what all it asked for...I can see my dotnet-watch's dependency tree.

"tools": {
".NETCoreApp,Version=v1.0": {
"Microsoft.DotNet.Watcher.Tools/1.0.0-preview3-final": {
"type": "package",
"dependencies": {
"Microsoft.DotNet.Cli.Utils": "1.0.0-preview2-003121",
"Microsoft.Extensions.CommandLineUtils": "1.1.0-preview1-final",
"Microsoft.Extensions.Logging": "1.1.0-preview1-final",
"Microsoft.Extensions.Logging.Console": "1.1.0-preview1-final",
"Microsoft.NETCore.App": "1.1.0-preview1-001100-00"
},

Hey now. I said "1.0.0-*" and I ended up with "1.0.0-preview3-final"

Looks like dotnet-watch is trying to bring in a whole new .NET Core. It wants 1.1.0. This new dotnet-watch is part of the wave of new preview stuff from 1.1.0.

But I want to stay on the released and supported "LTS" (long term support) stuff, not the new fancy builds.

I shouldn't have used 1.0.0-* as it was ambiguous. That might be great for my local versions or when I intend to chase the latest but not in this case.

I updated my version in my project.json to this and did a restore.

"Microsoft.DotNet.Watcher.Tools": "1.0.0-preview2-final",

Now I can reliably run dotnet restore and get what I want, and both dotnet watch and dotnet run use the same underlying runtime.


Sponsor: Big thanks to Telerik! They recently launched their UI toolset for ASP.NET Core so feel free to check it out or learn more about ASP.NET Core development in their recent whitepaper.

About Scott

Scott Hanselman is a former professor, former Chief Architect in finance, now speaker, consultant, father, diabetic, and Microsoft employee. He is a failed stand-up comic, a cornrower, and a book author.

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Disclaimer: The opinions expressed herein are my own personal opinions and do not represent my employer's view in any way.