I defined a package like this:
(defpackage :web-app
(:nicknames :wa)
(:use :cl :hunchentoot))
This works fine.
But I want to remove hunchentoot. When I remove it and recompile I get the following error:
Unknown location:
warning:
WEB-APP also uses the following packages:
(HUNCHENTOOT)
See also:
Common Lisp Hyperspec, DEFPACKAGE [:macro]
SBCL Manual, *ON-PACKAGE-VARIANCE* [:variable]
How do I remove packages from my lisp image in these cases.
I have tried restarting the image but no luck.
In this case the function to use is unuse-package. For example:
(unuse-package :hunchentoot :web-app)
That will sync the package system with your defpackage form so it will re-evaluate without a warning.
Related
Although this question has been asked before, it appears that much has changed with respect to modules in Julia V1.0.
I'm trying to write a custom module and do some testing on it. From the Julia documentation on Pkg, using the dev command, there is a way to create a git tree and start working.
However, this seems like overkill at this point. I would like to just do a small local file, say mymodule.jl that would be like:
module MyModule
export f, mystruct
function f()
end
struct mystruct
x::Integer
end
end # MyModule
It appears that it used to be possible to load it with
include("module.jl")
using MyModule
entering the include("module.jl"), it appears that the code loads, i.e. there is no error, however, using MyModule gives the error:
ArgumentError: Package MyModule not found in current path:
- Run `import Pkg; Pkg.add("MyModule")` to install the MyModule package.
I notice that upon using include("module.jl"), there is access to the exported function and struct using the full path, MyModule.f() but I would like the shorter version, just f().
My question then is: to develop a module, do I need to use the Pkg dev command or is there a lighter weight way to do this?
In order to use a local module, you must prefix the module name with a ..
using .MyModule
When using MyModule is run (without the .), Julia attempts to find a module called MyModule installed to the current Pkg environment, hence the error.
I have a variable defined in foo_const.v which is defined like this in foo_const.v:
localparam NUM_BITS = 32;
Then I have another file foo_const_slice.v which does this:
localparam SLICE_ADDR_BITS = NUM_BITS;
This compiles fine with the vcs command:
vcs -sverilog foo_const.v foo_const_slice.v
But when I try to use QuestaSim:
vlog -work work -sv foo_const.v foo_const_slice.v
I get the following error message:
** Error: foo_const_slice.v(46): (vlog-2730) Undefined variable: 'NUM_BITS'.
The problem is that by default, each file that vlog compiles goes into a separate compilation unit, just like C/C++ and many other languages. By default, vcs concatenates all files together into a single compilation unit.
Although there is a way to change the default (you can look it up in the user manual), the proper way to code this is to put your parameters in a package, and import the package where needed.
Dave
I'm trying to run the Elm input examples from this page. Specifically, the Text Field example, and I'm getting an error saying that the Graphics.Input module is missing.
I've got this in a file called Main.elm:
import Graphics.Input as Input
main = let (field, state) = Input.field "Type here!"
in lift2 display field state
display field state =
field `above` asText state
If I run elm-server and navigate to localhost:8000, I get the error
Your browser may not be supported. Are you using a modern browser?
Runtime Error in Main module:
Error: Module 'Graphics.Input' is missing. Compile with --make flag or load missing module in a separate JavaScript file.
The problem may stem from an improper usage of:
Input.field, above
Compiling the project with elm --make Main.elm gives me
elm: Graphics/Input.elm: openFile: does not exist (No such file or directory)
Is there something extra I need to do to install the Graphic.Input?
Additional Notes:
I'm running this on a Debian machine, and installed it using cabal install elm fairly recently (Jun 15 2013). The current version is labeled Elm-0.7.1.1.
If I hop into the chromium JS prompt and poke around, it turns out there's no Elm.Graphics.Input module, but there is an Elm.Input. There isn't a function called field, there's a similar looking one called textField, but it isn't trivially interchangeable.
Running this:
import Input
main = let (field, state) = textField "Type here!"
in lift2 display field state
display field state =
field `above` asText state
gives me the error
Your browser may not be supported. Are you using a modern browser?
Runtime Error in Main module:
TypeError: a is undefined
The problem may stem from an improper usage of:
above
The Graphics.Input package is new in version 0.8. So, since you're running version 0.7, that explains your problem.
0.8 was released somewhat recently, but it's definitely been out longer than June 15th, so you probably just forgot to cabal update before installing it. Running cabal update now and then updating elm to 0.8 should fix your issue.
I am writing a Play Framework module in order to share some common logic among multiple Play apps. One of the things I would like my module to do is provide some frequently-used functionality by way of 3rd-party modules, for example the excellent Markdown module.
First of all, is it possible to do this? I want all the apps that include my module to be able to use the .markdown().raw() String extension without needing to explicitly declare the Markdown module as a dependency. The Play Framework Cookbook chapter 5 seems to imply that it is possible, unless I am reading it wrong.
Secondly, if it is possible, how does it work? I have created the following vanilla example case, but I'm still getting errors.
I created a new, empty application "myapp", and a new, empty module "mymod", both in the same parent directory. I then modified mymod/conf/dependencies.yml to:
self: mymod -> mymod 0.1
require:
- play
- play -> markdown [1.5,)
I ran play deps on mymod and it successfully downloaded and installed the Markdown module. Running play build-module also worked fine with no errors.
Then, I modified myapp/conf/dependencies.yml to:
# Application dependencies
require:
- play
- mymod -> mymod 0.1
repositories:
- Local Modules:
type: local
artifact: ${application.path}/../[module]
contains:
- mymod
I ran play deps on myapp and it successfully found mymod, and generated the myapp/modules/mymod file, containing the absolute path to mymod.
I ran myapp using play run and was able to see the welcome page on http://localhost:9000/. So far so good.
Next, I modified myapp/app/views/Application/index.html to:
#{extends 'main.html' /}
#{set title:'Home' /}
${"This is _MarkDown_, by [John Gruber](http://daringfireball.net/projects/markdown/).".markdown().raw()}
I restarted myapp, and now I get the following error.
09:03:23,425 ERROR ~
#6a6eppo46
Internal Server Error (500) for request GET /
Template execution error (In /app/views/Application/index.html around line 4)
Execution error occured in template /app/views/Application/index.html. Exception raised was MissingMethodException : No signature of method: java.lang.String.markdown() is applicable for argument types: () values: [].
play.exceptions.TemplateExecutionException: No signature of method: java.lang.String.markdown() is applicable for argument types: () values: []
at play.templates.BaseTemplate.throwException(BaseTemplate.java:86)
at play.templates.GroovyTemplate.internalRender(GroovyTemplate.java:257)
at play.templates.Template.render(Template.java:26)
at play.templates.GroovyTemplate.render(GroovyTemplate.java:187)
at play.mvc.results.RenderTemplate.<init>(RenderTemplate.java:24)
at play.mvc.Controller.renderTemplate(Controller.java:660)
at play.mvc.Controller.renderTemplate(Controller.java:640)
at play.mvc.Controller.render(Controller.java:695)
at controllers.Application.index(Application.java:13)
at play.mvc.ActionInvoker.invokeWithContinuation(ActionInvoker.java:548)
at play.mvc.ActionInvoker.invoke(ActionInvoker.java:502)
at play.mvc.ActionInvoker.invokeControllerMethod(ActionInvoker.java:478)
at play.mvc.ActionInvoker.invokeControllerMethod(ActionInvoker.java:473)
at play.mvc.ActionInvoker.invoke(ActionInvoker.java:161)
at Invocation.HTTP Request(Play!)
Caused by: groovy.lang.MissingMethodException: No signature of method: java.lang.String.markdown() is applicable for argument types: () values: []
at /app/views/Application/index.html.(line:4)
at play.templates.GroovyTemplate.internalRender(GroovyTemplate.java:232)
... 13 more
And just to confirm I'm not crazy, I tried adding the play -> markdown [1.5,) line to myapp/conf/dependencies.yml and restarted the app, and confirmed that it works.
I feel like I'm missing something obvious. Many thanks in advance to anyone who can help! :)
Yes I had the same problem, it seems that transitive dependencies through custom home made modules does not work
I am trying to run tests by adding a version of tornado downloaded from github.com in the sys.path.
[tests]
recipe = zc.recipe.testrunner
extra-paths = ${buildout:directory}/parts/tornado/
defaults = ['--auto-color', '--auto-progress', '-v']
But when I run bin/tests I get the following error :
ImportError: No module named tornado
Am I not understanding how to use extra-paths ?
Martin
Have you tried looking into generated bin/tests script if it contains your path? It will tell definitely if your buildout.cfg is correct or not. Maybe problem is elsewhere. Because it seem that your code is ok.
If you happen to regularly include various branches from git/mercurial or elsewhere to buildout, you might be interested in mr.developer. mr.developer can download and add package to develop =. You wont need to set extra-path in every section.