experts out there! I need your help. I am trying to make my own instant messenger. I refer to this website, and I am stuck at this. There is a read underline bottom of the word, 'parse' and it says Cannot resolve symbol parse. I did everything I could. I put parse-1.10.2.zip in libs file. I added compile fileTree(include: ['*.jar'], dir: 'libs'), compile files('libs/Parse-1.10.2.jar') in build gradle, and added the jar in dependencies. However, the error still there. Can anybody fix this problem? Here's my code:
public class MyApplication extends Application {
// Enable Local Datastore.
Parse.enableLocalDatastore(this);
Parse.initialize(this, "APPLICATION ID", "CLIENT KEY");
}
Have you extracted your zip-archive? I'm no expert but you should put the jar-Files into libs-directory - not a zip-file.
Otherwise try this templates:
Related
I am having trouble utilising the libserialport.dart package. I have put a libserialport.so in the root of the project. When trying to run an application I get the following error:
Unhandled exception: Invalid argument(s): Failed to load dynamic library 'libserialport.so': libserialport.so: cannot open shared object file: No such file or directory
This tells me that the package is looking for the file somwhere else - but where?
The original library links the library this way, which results in it not finding the library:
LibSerialPort? _dylib;
LibSerialPort get dylib {
return _dylib ??= LibSerialPort(ffi.DynamicLibrary.open(
resolveDylibPath(
'serialport',
dartDefine: 'LIBSERIALPORT_PATH',
environmentVariable: 'LIBSERIALPORT_PATH',
),
));
}
If I replicate the plugin locally, but changing the linking as such, the library works as expected:
var libraryPath =
path.join(Directory.current.path, 'libserialport.so');
LibSerialPort? _dylib;
LibSerialPort get dylib {
return _dylib ??= LibSerialPort(ffi.DynamicLibrary.open(libraryPath));
}
The question is: where to put the .so file so it would work with the original verison? Where does resolveDylibPath() link to?
If possible I would like to avoid using my modified version as that brings license implications I am not entirely sure how to deal with.
Apparently the function looks for the path in the LIBSERIALPORT_PATH enviroment variable. Setting it to '.' made it work!
In the terminal:
export LIBSERIALPORT_PATH=.
I'm trying to add native swift code to my NativeScript app. According to these instructions in the documentation I can just add a swift source file to App_Resources/iOS/src/ and then use any publicly exposed classes directly in my TypeScript code.
Unfortunately this just doesn't work. I'll just get Cannot find name 'TestClass' and that's it.
Steps to reproduce:
Get a fresh NS project with ios tns create my-app-name --template tns-template-blank-ts
Update: I actually created the App with vue init nativescript-vue/vue-cli-template testapp. That seems to have caused the problems.
Add a TestClass.swift to App_Resources/iOS/src/
import Foundation
public class TestClass: NSObject {
#objc public func echo(param: String) -> String {
return param
}
}
Instantiate it in any TypeScript source file let instance = new TestClass()
Do tns debug ios
Compilation will fail with Cannot find name 'TestClass'
I have also tried generating TypeScript typings with TNS_TYPESCRIPT_DECLARATIONS_PATH="$(pwd)/typings" tns build ios or or just delcaring it as any with declare let KeyCommander: any; to eliminate the possibility that this is a TS related problem. The first approach doesn't generate any typings for my custom class so the TypeScript code will still not compile. The second approach let's the TS code compile but crashes on execution with JS ERROR ReferenceError: Can't find variable: TestClass.
I have also verified that the swift file is indeed getting compiled by inserting a syntax error which will crash the build process.
My NativeScript version is 6.4.0.
What am I missing?
Update: I just realized I actually created the App with vue init nativescript-vue/vue-cli-template testapp. I verified that as mentioned Tyler Blake's answer in an app created with the tns cli the described process actually works. In an app I just freshly created with vue init it doesn't, the objc!nsswiftsupport.d.ts is not being generated.
The question now is: What's causing the difference?
I followed your steps and I was able to get the typings to generate in objc!nsswiftsupport.d.ts. After you generate typings do you have that file with these contents?
declare class TestClass extends NSObject {
static alloc(): TestClass; // inherited from NSObject
static new(): TestClass; // inherited from NSObject
echoWithParam(param: string): string;
}
This shows that NS is able to pick up the Swift code.
All you need to do now is add tns-platform-declarations then in the references.d.ts file, add a line that points to the objc!nsswiftsupport.d.ts file. Then you'll get intellisense in your TS code.
Something like this:
/// <reference path="./typings/objc!nsswiftsupport.d.ts" />
Hope this helps!
I was able to solve the problem by inspecting the differences between the templates created with tns-cli and vue init. The difference is that the vue init template ships with an outdated version of the nativescript platform. You can just simply change
"tns-ios": {
"version": "6.0.1"
}
to version 6.4.0 (which the version the tns-cli template comes with) and then the process will work as described in the documentation.
I have created an application on angular 7 and ionic 4.
I tried to edit app.routing.ts file, setting path and component. From then on I am getting this error below:
ERROR in ./src/app/department/department.module.ts
[ng] Module build failed (from ./node_modules/#ngtools/webpack/src/index.js):
[ng] Error: ENOENT: no such file or directory, open 'C:\Users\x\department\department.module.ts'
[ng] at Object.openSync (fs.js:436:3)
[ng] at Object.readFileSync (fs.js:341:35)
[ng] at Storage.provideSync (C:\Users\x\node_modules\enhanced-resolve\lib\CachedInputFileSystem.js:98:13)
Make sure department component exist, check the templateUrl that corresponds to the file name you are referencing. You may have also modified the path unknowingly during modification of app.routing.ts file.
C:\Users\x\department\department.module.ts
This error occurs when your component can't be found with your app.module settings.
Follow these steps to solve your problem:
Check if the module.ts file exists.
Check the relative path.
The path is case sensitive (maybe the .ts file is Department).
Both answer are useful from #trustidkid and #vinay sharma. If there is someone has been facing the same problem;
1-Go to to the file that the error has occurred in. (To go directly to the file, click the error line shortly [CTRL+Click] (CMD+Click on MacOS):
ERROR in ./src/app/department/department.module.ts
Then check the path address if it is exactly true pointing the file. Most of these problems are having similar solutions. Just be sure about the path address of the file you want to point and the address mentioned in the other file which the error occurred.
This problem happens when you delete a component but forgot to delete its import from module.ts.
For example: TestComponent is deleted so you have to also delete:
import { TestComponent } from './test.component'
If you have a folder mapping on a windows machine like me, do not try to build it from a mapped folder, go to the original folder and build it from there.
Mapped Folder has a small icon like this:
In my case I had prime ng version that did not support a particular module, I simply commented it out and it worked.
** This question is edited and cleaned up some **
I have two projects and I want to use code from one in the other; I seem to be having trouble putting the code in the right directory structure to make the import statements work.
Both projects are created and managed exclusively from the Dart Editor on a Mac, if that makes any differences.
Project Directory Structures
Project 1: a command line app which contains the code I want to share in the following directory structure:
/dart/command_line_app
/lib
shared_library.dart
/bin
command_line_app.dart
Project 2: a web app which wants to import the code in shared_libary.dart
/dart/web_application
/packages
/web
web_application.dart
In the file shared_libary.dart, I declare it to be a library can create a simple class that provides output when instantiated:
library shared_library;
class ShareMe
{
ShareMe()
{
print("Hello, ShareMe");
}
}
This compiles, and works inside the command_line project: command_line_app.dart has the following:
import 'package:command_line_app/shared_library.dart';
void main() {
ShareMe shareMe = new ShareMe();
print("Hello, World!");
}
This imports the code runs, printing both "Hello Share Me," and Hello World.
THE PROBLEM
I want to instantiate the ShareMe class inside web_application.dart. I'd thought I could do that by putting in the same import statement I put in my command_line code:
import 'package:command_line_app/shared_library.dart';
But, when I put the same import into the web_appliation, it gets the error
Target of URI does not exist 'package:command_line_app/shared_library.dart'
Other Things I've Tried
I was certain I'd solved the problem when I cntrl-Clicked properties on Web_application and selected Project References.
It brings up a window allowing me to select command_line_app with a check box, but when I do, I get an error:
Could not set the project description for 'web_application' because the project description file (.project) is out of sync with the file system.
Whatever that means.
When I cntrl-click the underlined error and try Quick Fix it offers me "resolve dependencies" which sounds promising, but after a few seconds, it comes back and informs me that
Pub get failed, [1] Resolving dependencies... (15.3s)
Could not find package command_line_app at https://pub.dartlang.org.
Depended on by:
- web_application 0.0.0
I hope this is clear-er and gives a better insight into both what I'm trying to do and what I'm missing.
EDIT
you need to add
dependencies:
command_line_app:
path: ../command_line_app
to your dependencies in web_application/pubspec.yaml.
EDIT END
When you want to make code reusable in different packages, you should put that code into the lib directory of that package and import it using import 'package:mypackage/myfile.dart';.
Another problem you may face is, that browser applications can't import packages that have a dart:io dependency. If you want to reuse code between command line and browser applications you should move them into the lib directory of another package my_shared_code where you put only code that doesn't depend on dart:io (for example some entity classes) and import this code from both app packages (browser and command line).
I'm trying to integrate xlslib in my app. After compiling and installing lib, I have added this in my code. Then I got the error shown below:
format_t::format_t(CGlobalRecords& gRecords, const u16string& fmtstr) :
formatstr(fmtstr),
index(0),
m_usage_counter(0),
m_GlobalRecords(gRecords)
{
}
Errors:
format.cpp:125:52: Reference to 'u16string' is ambiguous
Out-of-line definition of 'format_t' does not match any declaration in
xlslib_core::format_t
while in format.h file, declaration as below
format_t(CGlobalRecords& gRecords, const u16string& fmtstr);
Can any one help to solve this issue?
Why didn't you post a bug report on the SourceForge page? In any case, the xlslib project has been updated and now offers the DHxlslibIOS library that you can incorporate as is into your project. You can download a zipped package here with the latest 2.4.0b1 source, or pull it from SVN. The framework is in the DHxls directory.