After searching for a bit and finding others having somewhat of the same problem, but no solution for me, I figured it was my turn to seek help.
I have npm along with parceljs setup for webserving (I'm new to these but I'm quite confident it's working as you can see some output in the image I've posted)
I have the typical problem of images not displaying.
Status code of the image is returning 304 OK, and is it normal to not see the the image listed in the directory under the 'Sources' tab in Developer tools?...
The issue is with the way you are loading the image urls as hard-coded strings, for example, you wrote this:
this.load.image('sz','./src/assets/gfx/sz0001.png`)
The way this is written, parcel doesn't know that this string is actually a reference to an image file, so it doesn't know to copy over the image into your output folder and ensure that the path ends up matching the actual output location.
The way parcel works, if you want to include an asset (like an image) into your bundle and reference it by URL in some other javascript context (like the this.load.image function), you should use an import statement or a URL constructor (see docs).
So you would instead write:
import myImageUrl from './src/assets/gfx/sz0001.png`;
// 'myImageUrl' will be a string that points to the location of the image
// This will also tell parcel that sz0001.png is a dependency of this project
// so that it can take care of copying it over to the dist output.
this.load.image('sz',myImageUrl)
Another tip is that the template you referenced uses parcel-bundler which the old, unmaintained 1.x version of parcel. I'd recommend upgrading your project to parcel 2, which on npm is simply parcel (see migration guide).
The green box, is shown if the asset is not found, or some other error.
Since I'm not 100% sure how parcel works and I don't know your parcel configuration and which parcel plugins you are using (I'm assuming parcel can be configured).
You could solve the problem by: manually copying the assets folder from src/ to dist/, than it should work. (atleast this work for me, when using this parcel template, to test the issue)
Maybe a parcel - plugin like parcel-plugin-static-files-copy, could also solve the problem, and/or be useful to keep the static files up-to-date.
Related
hi there!
i backed up my flutter project folder due to some issues with my drive,
i fixed the issues
only for me to try importing the project and continuing my work
and it turns out i can't find my main.dart file along with my entire lib folder
the only recognizable thing left in the project seems to be the assets folder
help me, please
this has really pushed me way behind schedule
also I would be much grateful if i could get an app that decompiles flutter apks
as my code is still in debug mode and i have the apk file.
thanks
enter image description here
To get source code of your apk file(debug) :-
Step 1- download strings for Windows (in your case)
https://learn.microsoft.com/en-us/sysinternals/downloads/strings
Step 2-
Since kernel_blob.bin has all your app's source code,
Run this command,
strings /path/to/extracted/apk/assets/flutter_assets/kernel_blob.bin > extracted_code.dart
Here, replace, "path to extracted" to your own path.
Step 3
You’ll need to clean the extract_code file, and strings like “dart”, “import”, “void” and other keywords in ‘extracted_code.dart’, will help you find the code itself.(search for them to get your code)
I just though I make my life easier by sticking to common structures, so I started transferring a chrome browser extension to a yeoman template format
(https://github.com/yeoman/generator-chrome-extension).
Unfortunately it simply does not work when I try to just add my first basic bower source that I need:
https://github.com/Yaffle/EventSource
Here is what I did:
Set up the new extension with the yeoman helper
$ bower install EventSource --save
Added event source to the manifest like so
"background": {
"scripts": [
"scripts/chromereload.js",
"app/bower_components/EventSource/eventsource.js",
...
Add "new EventSource('http://localhost:9292/updates');" to background.js
Other than that the project is untouched.
And whenever I start the project with grunt it fails not finding EventSource like so "'EventSource' is not defined."
Adding the eventsource.js directly to my script folder and require it from there fails even worse by linting the eventsource.js file (that works perfectly fine) and aborting it for too many warnings (like using single quotes).
Previously this whole project worked pretty fine without grunt/bower and now it won't even start after I added the first real line of code. This is quite disappointing for a tool that is supposed to make your life so much easier.
Does it fail because of the warnings in the eventsource.js? In the first case (via bower) it does not say anything about this so I'm not sure.
I could go on trying out different combinations but I'm obviously missing a core concept or something like this here.
Any idea?
Update:
After some more trying and giving up i found the magic "grunt bowerInstall" command, to add the script-tags in the template automatically - still no help.
I did also try again on a fresh project with just jQuery (assuming this has to work..), well it still does not.
Neither in the popup.js (where the html template includes jQuery) nor in the background script (where the manifest includes it).
I probably read every manual/how-to on hot to use either of those components and still get nowhere.
Another day another try:
Starting with a clean mind i looked a bit more into it today finding out that apparently you have to "whitelist" globals like $ in jshint like so:
http://jshint.com/docs/options/#jquery
Still not sure if this is actually the best approach as it seems very counter-intuitive with promised ease of getting started of the yeoman/grunt/bower framework.
EventSource is probably a global variable. You can try declaring it as false in the .jshintrc file to prevent it from being overwritten.
"globals" : {
"chrome": true,
"crypto": true,
"EventSource": false
}
See if that works.
Read more about .jshintrc + global variables at: JSHint and jQuery: '$' is not defined
I am working with minko and managed to compile MINKO SDK properly for 3 platforms (Linux, Android, HTML5) and build all tutorials / examples. Moving on to create my own project, I followed the instructions on how to use the existing skeleton project, then using an existing example project.
(I believe there is an error in the skeleton code at this line :
auto sceneManager = SceneManager::create(canvas->context()); //does not compile
where as the example file look like this :
auto sceneManager = SceneManager::create(canvas); //compile and generate binary
I was able to do so by modifying premake5.lua (to include more plugins) and calling script/solution_gmake_gcc.sh
to generate the make solution a week ago. Today, I tried to make a new project in a new folder but calling
script/solution_gmake_gcc.sh and script/clean failed with this error:
minko-master/skel_tut/mycode/premake5.lua:3: attempt to index global 'minko' (a nil value)
Now at premake5.lua line 3 there is this line : minko.project.solution(PROJECT_NAME),
however sine i am not familiar with lua at all, can anyone shed any light on the issue ?
What is supposed to be declared here, why is it failing suddenly... ?
(I can still modify,compile and run the code but i can't for example add more plug-ins)
PS: weirdly enough, the previously 'working' project is also failing at this point.
Thanks.
PROJECT_NAME = path.getname(os.getcwd())
minko.project.application("minko-tutorial-" .. PROJECT_NAME)
files { "src/**.cpp", "src/**.hpp", "asset/**" }
includedirs { "src" }
-- plugins
minko.plugin.enable("sdl")
minko.plugin.enable("assimp")
minko.plugin.enable("jpeg")
minko.plugin.enable("bullet")
minko.plugin.enable("png")
--html overlay
minko.plugin.enable("html-overlay")
Assuming that's indeed your project premake5.lua file (please us the code tags next time), you should have include "script" at the beginning of the file:
https://github.com/aerys/minko/blob/master/skeleton/premake5.lua#L1
If you don't have this line, it will not include script/premake5.lua which is in charge of including the SDK build system files that defines everything inside the minko Lua namespace/table. That's why you get that error.
I think you copy pasted one of the examples/tutorials premake5.lua file instead of modifying the one provided by the skeleton. The premake conf file of the examples/tutorials are different since they are included from the SDK premake files. But your app premake5.lua does the "opposite": it includes the SDK conf files rather than being included by them.
The best practice is to edit your app's copy of the skeleton's premake5.lua (instead of copy/pasting one from the examples/tutorials).
(I believe there is an error in the skeleton code at this line :
That's possible. Our build server doesn't test the skeleton code. That's a mistake we will fix ASAP to make sure it works properly.
script/solution_gmake_gcc.sh and script/clean failed with this error:
minko-master/skel_tut/mycode/premake5.lua:3: attempt to index global 'minko' (a nil value)
Could you copy/paste your premake5.lua file?
Also, what's the value you set for the MINKO_HOME env var? Maybe you've moved the SDK...
Note that instead of setting a global MINKO_HOME env var, you can also set the corresponding LUA constant at the very begining of your premake5.lua file.
I have created a web site using backbone + requirejs + bootstrap on client side and php REST on server side. The site contains a lot of .js file. I use requirejs to load the .js when it is needed (to implement asynchronous loading).
However, I have start using Node.js + Yeoman + grunt + bower recently. I use Yeoman webapp generator to create the basic structure of my web again. When I build my web, it concat all the .js files into 1 single .js file and put the tag on the index.html to refer it.
From my understand the pros is that the whole .js is cached in client's browser. which is slow at first time visit, but fast on re-visit. Since everything is concat to 1 file and it is loaded to the client's browser, so I guess the asynchronous loading is not work in this case. (correct me if I wrong).
* the web site is created for both mobile and desktop. (1 src for 2 version)
Should I concat all .js files in 1 single file
OR should I use requirejs to require the .js when I need it (Asynchronous loading)?
How to config requirejs in Node. I have tried it in normal way (include the data-main in index.html, when I compile using grunt build. it give me error "... is no more support".
Is browserify similar to requirejs in Node?
I have spent a week to figure it out already but still no luck. Hope someone can point me to the right direction. Thanks a lot.
The .js file structure is something like this:
-app
-vendor
-jquery.js
-backbone.js
-assets
-js
-model
-person.js
-collection
-people.js
-router.js
-controller.js
-dist
-js
-build.js
i had familiar issues. So lets start with strategy of file concatenation. There are three major ways to follow:
first - always concat all modules in one file, in this case you loose on first start and may win or next starts, but you can face another issue - you use less then half of modules from concatenated file at a time, but always load all modules.
second way is to build specific concatenated file with specific module set for each type of page - so you know how many page type you have and build file for each - following this you can decrease size of file, but its hardly to maintain and need manual sets correction in case of page changes.
third - build 1 concatenated file with libs and modules which in use nearly on all pages, all other stuff (additional modules, views, special models and collection) load on demand. This way is good in case of SPA pages.
Let me say a few words about grunt + r.js configauration.
Keep this link for first times .
Here is the sample of config:
requirejs: {
compile: {
options: {
baseUrl: "path/to/base",
mainConfigFile: "path/to/config.js",
name: "path/to/almond",
out: "path/to/optimized.js"
}
}
}
Main point here mainConfigFile - it is a file then you keep require.config
Next step - configure r.js - keep this link its very helpfull as describe all possibilities of r.js.
Usually its quite enough to checkout these links.
Also you can checkout recommend file structure for multi page site to avoid issues in future.
Also here is a link to a similar post - you may find it usefull.
If you have any additional questions let me know.
And a few words about CSS - logic nearlly the same : you can build separate file for each page or create sinngle. The main point here is how large your site is. In my case i've choose second option, but to be honest first one is more scalable, especially in large projects
I can get the requirejs work with Backbone now. However, I cannot use Marionette with error something like "Backbone is undefined". I've install Marionette with this command "bower install marionette --save". I did some search on google, and someone said use the AMD version of Marionette should fix this issue and after replace Marionette with AMD version it is work.
But my question is how can I install the AMD version of Marionette using "bower install"?
My web use bootstrap. When I compile the web with "grunt build". it copy bootstrap's font from "app/bower_components/bootstrap/dist/fonts" to "dist/bower_components/bootstrap/dist/fonts" but the web is refer the font on "dist/fonts". How can I change it to refer to the right directory?
I use yo webapp (with bootstrap) to generate the structure of my web.
I have an app that has been running fine on the iPhone simulator for some time. Recently, I decided I wanted to re-use the data model and related classes in another project - so I dragged them from this project window to the other then told Xcode not to copy, just to make references. At first this didn't work so I jumped through a number of hoops to try to fix it (I may be asking more about that in another post). After all this, I re-compiled and tried to run the original app -- and it's not working any more. On further investigation, I discovered that when I re-compile the original app, I end up with a bundle that contains a .momd package but it contains only a Versioninfo.plist file - no .mom file, no .omo file like I'm expecting to see. I don't recall making any changes to the original app. I don't get any warnings. I just get an incomplete .momd package (and, not surprisingly, my app now crashes).
What's going on here?
BTW, the app now crashes with this message:
Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '* -[__NSArrayM insertObject:atIndex:]: object cannot be nil'
Which I get when executing this line of code:
self.productRegistry = [[UIManagedDocument alloc] initWithFileURL:self.productRegistryURL];
I figured this out by looking more closely at the file locations in the project directory using Finder. In the Xcode window, everything looks normal but in the actual project directory I found that the .datamodeld package had ended up at the top level of the project directory -- at the same level as the project package itself. Xcode apparently did not like this but unfortunately it did not complain -- it just created a partial build output. Once I moved the .datamodeld package into the same folder as the rest of the project's code, everything worked just fine.
This would appear to be just a quirk. I would expect that Xcode would either see that all is well and build correctly OR it would see that things weren't quite as they should be and fail. In this case, it did not build correctly but was silent about it.
Hope this answer helps someone else someday.