I have dowloaded a jpcap package from http://sourceforge.net/projects/jpcap/
I have copied the jar file in ext of jre and jdk and also copied the folder in bin of jdk. but when i run my code it shows a error of JpcapCaptor and Network Interface class not found.
I have also searched manually in my package and there is no class named JpcapCaptor. Please help me if i had installed a wrong package or what?
yes there is no class named JpcapCaptor in 0.01.16 version. and your problem about the network interface not found is because PacketCapture.getDevice is adding \n and other string (like window) to the device name, which make it unreadable when you are trying to open the device so try compare the device name with the one you can find by using ipconfig in the Command prompt and erase the extra string using substring.
you can use code when you open the device:
PacketCapture pcap=new PacketCapture();
String device=pcap.findDevice();
device=device.substring(0, device.indexOf("}")+1);
m_pcap.open(device, true);
Related
Hi I´ve tried to run a fuzzymatcher code and the error below pops up:
OperationalError: no such module: fts4
Any suggestions? Thanks in advance
Edit: I've already tried downloading the sqlite zip from the website and saving it in DLLs files but it still does not work. Do I have to activate it somehow?
I´m using Anaconda3 64 bit.
Thanks
Confirm that the DLL files have been added in the correct place; if you are using Windows it will be C:\ProgramData\Anaconda3\DLLs.
you can try to load the extensions:
import sqlite3
conn = sqlite3.connect(':memory:')
cur = conn.cursor()
conn.enable_load_extension(True)
for (val,) in cur.execute('pragma compile_options'):
print (val)
It will show some results similar to these:
COMPILER=msvc-1500
ENABLE_BYTECODE_VTAB
ENABLE_COLUMN_METADATA
ENABLE_DBSTAT_VTAB
ENABLE_FTS3
ENABLE_FTS4
ENABLE_FTS5
ENABLE_GEOPOLY
ENABLE_JSON1
ENABLE_RTREE
ENABLE_STMTVTAB
MAX_TRIGGER_DEPTH=100
TEMP_STORE=1
THREADSAFE=1
As mentioned by #Ahmed and #Jeremy in the previous answer,
Confirm that the DLL files have been added in the correct place
However, make sure that it is indeed the correct place. For example, if you're working in a virtual environment, the location is not C:\ProgramData\Anaconda3\DLLs.
Check where python is installed to find the correct place.
You can copy the downloaded sqlite files in C:\Users\ (usernamefolder)\anaconda3\DLLs and check for the enabled extensions using the following syntax in jupyter notebook.
import sqlite3
conn = sqlite3.connect(':memory:')
cur = conn.cursor()
conn.enable_load_extension(True)
for (val,) in cur.execute('pragma compile_options'):
print (val)
This will give the list of extensions which are enabled and FTS-4 will be one of them. In case you tried and it still hasn't been enabled you can uninstall and reinstall anaconda package and try repeating the procedure.
This is what worked for me
install this in anacoda prompt using the comand below
conda install -c conda-forge sqlite-fts4
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.
I am facing a problem with my visual studio 2013 ultimate. i would run a open cv project but iam getting a error message like this " opencv_core249d.lib" missing from ur computer. re install the program.
Solution : It works with eclipse Version: Mars.2 Release (4.5.2).
This is a missing .dll issue, not a missing lib issue. It usually occurs when the Environment Variables have not been correctly set in your Windows environment. To take care of this problem, there are 2 methods:
1) edit Environment variables
Go to ‘My Computer’ , right-click and select ‘Properties’. A window called ‘System’ will open, containing the Windows Logo on the right. On the left margin of this window, you will find a link named ‘Advance system
settings’. Click on it.
Another window called ’System Properties’ will open. On the bottom right corner of this window, click on the button named ’Environment Variables..’.
Under the ‘System variables’ column, look for a variable by the name ‘Path’. - Select ‘Path’ and click ‘Edit..’
In the ‘variable value’ row, add the following address:
\path to\opencv\build\x86\vc12\bin;
Please Note- Ensure that the new address added by you, and the address previously written in the ‘variable value’ row, are separated by a ; DO NOT REMOVE the previous environment variable addresses.
2) Manually copy the .dll files.
In case the first approach does not work for you, go to:
\path to\opencv\build\x86\vc12\bin;
You'll find all the dll files that you're looking for. Copy those files to directory where your source code is located.
Using xlwings 0.7.1 UDF on Windows in 64-bit virtual env python 2.7.6.
I see now that instead of requiring full path to module, it takes module names. However it fails silently to import any UDFs when the module name has package name prefixed. Eg:
PYTHONPATH = ThisWorkbook.Path & ";C:\pathTo\Pydev\myproj\src"
UDF_MODULES = "pkg.myudfs"
If I move the package name 'pkg' from UDF_MODULES to PYTHONPATH, then it fails at imports inside myudfs.py (like 'import pkg.module2').
After hit & trial, I fixed it by adding multiple source folders:
PYTHONPATH = ThisWorkbook.Path & ";C:\pathTo\Pydev\myproj\src\pkg;C:\pathTo\Pydev\myproj\src"
Am I expected to do this? Can't I just point UDF_MODULES to base src folder and provide qualified module name like 'pgk.myudfs'?
You're actually doing it right for right now (v0.7.1). I have, however, opened an issue on GitHub so we might make this easier in a future release.
** 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).