How can I get the systemjs builder to ignore third party libraries? We are evaluating wijmo controls for use in an app and they provide wijmo.angular2.min.js, wijmo.input.min.js and wijmo.min.js. We load these after SystemJS in our web page and that works fine because those files register the wijmo modules. However, when we try to bundle it throws an error because it cannot find the files. Sample error:
Unhandled rejection Error on fetch for vendor/wijmo/wijmo.angular2.input.js
at file:///C:/git/prj/dist/vendor/wijmo/wijmo.angular2.input.js
I can add this path to my config but then I get a different error:
'wijmo/*': 'vendor/wijmo/wijmo.angular2.min.js'
Error:
Unhandled rejection TypeError: Error compiling register module "wijmo/wijmo.angular2.input"
at vendor\wijmo\wijmo.angular2.min.js
Source vendor\wijmo\wijmo.angular2.min.js is already a bundle file, so can't
be built as a module.
Edit
Adding this path lets bundling work (at least it builds the bundles), but keeping the line in my config causes the app to error out, apparently being unable to find the class I'm importing (throws unexpected directive 'undefined')...
'wijmo/wijmo.angular2.input': 'vendor/wijmo/wijmo.input.min.js'
I got it to work by adding a 'meta' section to my SystemJS config that told it not to build that path:
var meta = {
'wijmo/*': {
format: 'global',
build: false,
}
};
Related
I have 2 issues that only appear when executing flutter build web.
Sometimes flutter build web fails complaining (wrongly) about types that were not compatible (see below).
Sometimes the build process finishes but then the web app doesn't work: doesn't display anything and there are no messages in the console.
The error I mention is something like this:
% flutter build web
Target dart2js failed: Exception: lib/main.dart:24:31:
Error: A value of type 'ApiUsersRepository' can't be assigned to a variable of type 'UsersRepository'.
- 'ApiUsersRepository' is from 'package:my_app/api_users_repo.dart' ('lib/api_users_repo.dart').
- 'UsersRepository' is from 'lib/users_repo.dart'.
final UsersRepository usersRepository = ApiUsersRepository();
^
Error: Compilation failed.
The app is working in iOS and web when developing.
The solution
I changed all imports of my files like:
import 'package:my_app/users_repo.dart';
To:
import 'users_repo.dart';
More Details
Investigating the error about types, I found this issue, where the important part is this comment: after changing every import to relative format it resolves my problem.
So I did that, and it solved the 2 issues, the compilation error, and the runtime error.
for me I had to remove a package that was corrupted. c:\src\flutter.pub-cache\hosted\pub.dartlang.org\localstorage-4.0.0+1 Apparently, a file had become corrupted by me invertly. I removed the package and did a flutter pub get then recompiled and it worked.
I have created an Android Unity plugin (.aar file) which provides some custom positioning data to my Unity game. In my Unity script, I use,
var x = customClass.CallStatic<float>("getHeadX");
In order to get some location data. This method is called per frame to get the updated data (polling method) which makes it inefficient. Instead, I decided to call a C# method in my Unity script from my java code (plugin side) when the updated data is ready. To do this, in my java plugin, I wrote,
import com.unity3d.player.UnityPlayer;
...
UnityPlayer.UnitySendMessage("Manager", // gameObject name
"PluginCallback", // this is a callback in C#
"Hello from android plugin"); // msg which is not needed actually
However, the compiler complained that the package com.unity3d.player.UnityPlayer does not exist. So I copied classes.jar file from
C:\Program Files
(x86)\Unity\Editor\Data\PlaybackEngines\AndroidPlayer\Variations\mono\Release\Classes
\classes.jar
into the 'libs' folder of my android plugin's project. I built it successfully and copied the generated .aar file (mylibrary-release.aar) into Assets\Plugins\Android folder of my Unity project.
When I build the Unity project (Using 'Internal' build system), it gives me this error:
IOException: Failed to Move File / Directory from
'Temp/StagingArea\android-libraries\mylibrary-release\classes.jar' to
'Temp/StagingArea\android-libraries\mylibrary-release\libs\classes.jar'.
UnityEditor.Android.PostProcessor.Tasks.ProcessAAR.Execute
...
This error happens because the classes.jar dependency has name conflict with classes.jar (made by unity out of my plugin). So I changed the dependency name to unity_classes.jar and this resolved the issue but now I'm getting a new error when building my unity application:
CommandInvokationFailure: Unable to convert classes into dex format.
C:/Program Files/Java/jdk1.8.0_102\bin\java.exe -Xmx2048M
Dcom.android.sdkmanager.toolsdir="C:/Users/kamran.shamloo/AppData/Local/Android/Sdk\tools"
-Dfile.encoding=UTF8 -jar "C:\Program Files (x86)\Unity\Editor\Data\PlaybackEngines\AndroidPlayer/Tools\sdktools.jar"
stderr[ Uncaught translation error:
java.lang.IllegalArgumentException: already added:
Lbitter/jnibridge/JNIBridge; Uncaught translation error:
java.lang.IllegalArgumentException: already added:
Lbitter/jnibridge/JNIBridge$a; Uncaught translation error:
java.lang.IllegalArgumentException: already added:
Lcom/unity3d/player/NativeLoader; Uncaught translation error:
java.lang.IllegalArgumentException: already added:
Lcom/unity3d/player/ReflectionHelper; Uncaught translation error:
java.lang.IllegalArgumentException: already added:
Lcom/unity3d/player/ReflectionHelper$1; Uncaught translation error:
java.lang.IllegalArgumentException: already added:
Lcom/unity3d/player/ReflectionHelper$a; Uncaught translation error:
java.lang.IllegalArgumentException: already added:
Lcom/unity3d/player/UnityPlayer; Uncaught translation error:
java.lang.IllegalArgumentException: already added:
Lcom/unity3d/player/UnityPlayer$1; Uncaught translation error:
java.lang.IllegalArgumentException: already added:
Lcom/unity3d/player/UnityPlayer$10;
...
The classes.jar (which you later renamed it to 'unity_classes.jar') gets automatically included into the built .apk by Unity, so you shouldn't include it yourself again (in your Android plugin), even under a different name.
In other words, first your android plugin "embeds" this .jar file inside itself. Then, when Unity adds your plugin into the game project, it also adds its own copy of that .jar file (it does that for all android projects). Consequently, Unity essentially ends up having 2 copies of the same .jar file in the project and complains by saying 'unable to convert classes into dex format'.
So although you have to use this library (.jar file) in your project but you should not bundle this library with your project. How to do that? If you're using Android studio, you can achieve this by marking the .jar file as a dependency with the provided scope.
To do this, you can:
1) Go to 'build.gradle' of your module and change this:
compile files('libs/jars/unity_classes.jar')
to this:
provided files('libs/jars/unity_classes.jar')
Or
2) you can right-click on the module (in Android pane) and choose Open Module Settings. Then go to Dependencies tab. Find the Unity module (which I renamed it to unity_classes.jar) and change its scope to Provided.
I have a portable class library project that targets .NET 4.6 and Universal Windows Platform. This class library contains just one class with the following line of code in its constructor:
Directory.CreateDirectory(Path.Combine(Path.GetTempPath(), Guid.NewGuid().ToString()));
Now I create a new .NET 4.6 console application project in the same solution and add a project reference to the portable class library. Calling the method that houses the above line of code results in the following exception at runtime:
Could not load file or assembly 'System.IO.FileSystem, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a' or one of its dependencies. The system cannot find the file specified.
What am I doing wrong here? There are no compile-time errors or warnings.
Things I have tried: add missing(?) NuGet package manually
It seems that System.IO.FileSystem is a library delivered via NuGet, as part of the Microsoft.NETCore mega-package. Okay, perhaps I need to explicitly add this package to any project that uses my portable class library. I attempt to do so.
Could not install package 'Microsoft.NETCore.Platforms 1.0.0'. You are trying to install this package into a project that targets '.NETFramework,Version=v4.6', but the package does not contain any assembly references or content files that are compatible with that framework. For more information, contact the package author.
No luck with this approach.
Things I have tried: create a project.json file
While there is no clear info on the web, I read a few tidbits about a new project.json based NuGet harness or build system. Just to experiment, I created the following project.json file in my console application project:
{
"dependencies": {
},
"frameworks": {
"net46": { }
},
"runtimes": {
"win-anycpu": { }
}
}
It works! The runtime error goes away! However, I soon found that this was either not the right solution or not a complete solution. I started writing some code to read configuration section values, which involved making use of the IConfigurationSectionHandler interface, and got the following compile-time error:
error CS0246: The type or namespace name 'IConfigurationSectionHandler' could not be found (are you missing a using directive or an assembly reference?)
This interface is part of the System assembly. I see a reference to this assembly, but it has a yellow exclamation mark icon, and a warning appears in the warnings window:
The referenced component 'System' could not be found.
This is where I ran out of ideas. Am I missing something totally obvious?
I have found the solution. My initial attempt was to install the Microsoft.NETCore package into the console application, resulting in the error shown in my original post.
However, if I install only the narrowly-scoped packages, e.g. System.IO.FileSystem, then I achieve success and the application works correctly. Apparently there is something special about the Microsoft.NETCore "master package" that prevents it from correctly installing into dependent projects.
I've been struggling to properly integrate this Netflix Java Client to access Netflix's API into a very basic Eclipse Java Web Project.
Whenever I try to publish any content referring to this library, I get errors like the following, indicating an inability to resolve the type of the classes in the external library I'm trying to use.
Aug 20, 2011 11:48:42 AM org.apache.catalina.core.StandardWrapperValve invoke
SEVERE: Servlet.service() for servlet [jsp] in context with path [/OSNet03] threw exception [Unable to compile class for JSP:
An error occurred at line: 19 in the jsp file: /index.jsp
NetflixAPIClient cannot be resolved to a type
16: String myConsumerKey = new String("cefjbgekg7566cqrp2atua2n");
17: String myConsumerSecret = new String("redacted");
18:
19: NetflixAPIClient apiClient = new NetflixAPIClient(myConsumerKey, myConsumerSecret);
20: String uri = APIEndpoints.MOVIE_URI + "/2361637";
21: String details = null;
At the top of the file I include the proper class directories like this:
<%# page import="com.netflix.api.*" %>
<%# page import="com.netflix.api.client.*" %>
<%# page import="com.netflix.api.client.dal.*" %>
And I don't receive any errors from Eclipse telling me it can't resolve the classes. Only once I publish it to the server does this error occur.
I've tried building with jre7 and jdk1.7.0. The library I'm trying to work with includes elements that are from Java v6 and v5.
I included the library by building it with Maven and placing the directory in my WEB-INF/lib folder and then including the jar netflix-client-2.3-SNAPSHOT.jar in my Build Path.
I've looked all over the web for possible causes and tried every prescribed solution I've found but none have worked.
You may be able to tell I'm very new to using Eclipse and Java Web Programming but I'm trying to figure things out as best I can as I go.
check if build automatically is on :P. if not try turning it on for once.
if yes then check the project build path and look for libraries. check if the correct jars are there.
also check if your jars are not corrupted.
these are the usual problems for more wait for sm1 else to answer.
you could also try searching for the resource class that can't be resolved using Ctrl+Shift+R and see if the class turns up.
if you don't get it, then just extract the jar and see if the class is there for real.
I'm starting out with the Facebook C# SDK and trying to run the MVC Sample on my test server and am running into the following error:
Parser Error
Description: An error occurred during the parsing of a resource required to service this request. Please review the following specific parse error details and modify your source file appropriately.
Parser Error Message: Could not load type 'Facebook.Web.Mvc.ViewUserControl'.
Source Error:
Line 1: <%# Control Language="C#" Inherits="Facebook.Web.Mvc.ViewUserControl" %>
Source File: /Views/Facebook/LoginButton.ascx Line: 1
I've set up several MVC 2.0 projects in the past and have followed the instructions on the getting started section on http://facebooksdk.codeplex.com/ (added and changed setting in web.config, etc.)
What am I missing in order to run the sample project(s).
You are using a very old sample from the SDK. The problem is that the class Facebook.Web.Mvc.ViewUserControl does not exist. That was only in a very early alpha build. I would recommend downloading the new sample to get started. You can get that here: http://facebooksdk.codeplex.com/releases/view/54371#DownloadId=160969