Proxy settings, firewall or antivirus sw have been found to be culprits in other occasions. I suggest searching in Google: "Processing start delayed" and hopefully you can access some of those previous posts in the forum.

Kf

Oddly, deleting the appdata folder and the program folder doesn't fix it. But I discovered that if I run the processing.exe directly it starts almost immediately, however if I click on a task bar shortcut I created it takes forever and locks up for a minute on startup. Possibly avast is screwing around but even if I disable avast I still have the problem. Edit: I spoke too soon, it seems like it's happening even when starting it directly now. Could it be a networking thing? I remember I had a lot of issues first getting processing to work until I set system proxy to false in settings.

I can only guess: Antivirus, proxy settings, firewall, etc.

I believe you should be able to install the mode manually. Ask next time if you run again into these waiting times. Do you have any problems when starting Processing or when downloading libraries from the Contribution Manager? Just for the record...

Kf

I have seen previous post that could be related to proxy settings, or your antivirus.

https://forum.processing.org/two/search?Search=proxy
https://forum.processing.org/two/discussion/comment/107268/#Comment_107268

Is this the latest Processing? Could you also try and see if starting Processing by clicking directly on a pde file (instead of launching from the application icon) works for you?

Kf

I also tried EVERYTHING here:: https://stackoverflow.com/questions/5199811/android-sdk-manager-wont-open

NOTHING worked. I don't even have 'set java_exe' in my android.bat!

This is the android.bat:

@echo off
setlocal enableDelayedExpansion

echo **************************************************************************
echo The "android" command is deprecated.
echo For manual SDK, AVD, and project management, please use Android Studio.
echo For command-line tools, use tools\bin\sdkmanager.bat
echo and tools\bin\avdmanager.bat
echo **************************************************************************
echo.

set DIRNAME=%~dp0
if "%DIRNAME%" == "" set DIRNAME=.\

if not defined wrapper_bin_dir (
  set wrapper_bin_dir=bin
)

set avd_verbs=;list;create;move;delete;
set avd_objects=;avd;target;device;

call:checkMatch "%avd_verbs%" "%avd_objects%" %* || (
  call:invoke "%DIRNAME%%wrapper_bin_dir%\avdmanager" %* || exit /b 1
  exit /b 0
)

set sdk_verbs=;list;update;
set sdk_objects=;sdk;
call:checkMatch "%sdk_verbs%" "%sdk_objects%" %* || (
  call:runSdkCommand %* || exit /b 1
  exit /b 0
)

echo Invalid or unsupported command "%*"
echo.
echo Supported commands are:
echo android list target
echo android list avd
echo android list device
echo android create avd
echo android move avd
echo android delete avd
echo android list sdk
echo android update sdk
exit /b 1

:runSdkCommand
  setlocal enableDelayedExpansion
  set trysdk=""
  if defined USE_SDK_WRAPPER (set trysdk="%USE_SDK_WRAPPER%")
  call:findSdkParam %* || (
    set trysdk=y
  )
  if %trysdk%=="" (
    echo "android" SDK commands can be translated to sdkmanager commands on a best-effort basis.
    echo (This prompt can be suppressed with the --use-sdk-wrapper commend-line argument
    echo or by setting the USE_SDK_WRAPPER environment variable^)
    set /p trysdkresponse="Continue? [y/N]: "
    if /I "!trysdkresponse!"=="y" (
      set trysdk=y
    )
  )
  if %trysdk%=="" (
    echo Aborted
    exit /b 1
  )
  if "!verb!"=="list" (
    call:invoke "%DIRNAME%%wrapper_bin_dir%\sdkmanager" --list --verbose || exit /b 1
    exit /b 0
  )
  if "!verb!"=="update" (
    set args=
    set prev=
    set update_all=1
    call:sdkUpdate %* || exit /b 1
    exit /b 0
  )

:sdkUpdate
  setlocal enableDelayedExpansion
  set paramsWithArgument=;-p;--obsolete;-u;--no-ui;--proxy-host;--proxy-port;-t;--filter;
  set verb="%~1"
  set object="%~2"
  set args=
  set prev=""
  shift & shift
  :sdkupdateloop
    if "%~1"=="" (goto:sdkupdatedone)
    set arg="%~1"
    set unquotedarg=%~1
    shift
    if !arg!=="--use-sdk-wrapper" (
      goto:sdkupdateloop
    ) else if !arg!=="!verb!" (
      goto:sdkupdateloop
    ) else if !arg!=="!object!" (
      goto:sdkupdateloop
    ) else if !arg!=="-n" (
      echo "update sdk -n is not supported"
      exit /b 1
    ) else if !arg!=="-s" (
      set args=!args! --no_https
    ) else if !arg!=="--no-https" (
      set args=!args! --no_https
    ) else if !arg!=="-a" (
      set args=!args! --include_obsolete
    ) else if !arg!=="--all" (
      set args=!args! --include_obsolete
    ) else if "!paramsWithArgument:;%unquotedarg%;=!" neq "!paramsWithArgument!" (
      rem nothing
    ) else if "!arg:~1,1!"=="-" (
      echo Unrecognized argument !arg!
      exit /b 1
    ) else if !prev!=="--proxy-host" (
      set args=!args! --proxy=http --proxy_host=!unquotedarg!
    ) else if !prev!=="--proxy-port" (
      set args=!args! --proxy_port=!unquotedarg!
    ) else if !prev!=="-t" (
      set has_filter=y
      call:parseFilter !arg! || exit /b 1
      rem unquoted comma-separated lists are treated as separate args, so if
      rem the next arg isn't recognized as a flag, treat it as a filter element
      goto:sdkupdateloop
    ) else if !prev!=="--filter" (
      set has_filter=y
      call:parseFilter !arg! || exit /b 1
      rem unquoted comma-separated lists are treated as separate args, so if
      rem the next arg isn't recognized as a flag, treat it as a filter element
      goto:sdkupdateloop
    ) else (
      echo Unrecognized argument !arg!
      exit /b 1
    )
    set prev=!arg!
    goto:sdkupdateloop

  :sdkupdatedone
  if not defined has_filter (
    set args=%args% --update
  )
  call:invoke "%DIRNAME%%wrapper_bin_dir%\sdkmanager" %args% || exit /b 1
  exit /b 0

:parseFilter
  for %%i in (%~1) do (
    set filter=%%i
    if "!filter!"=="tool" (
      set args=!args! tools
    ) else if "!filter!"=="tools" (
      set args=!args! tools
    ) else if "!filter!"=="platform-tool" (
      set args=!args! platform-tools
    ) else if "!filter!"=="platform-tools" (
      set args=!args! platform-tools
    ) else if "!filter!"=="doc" (
      set args=!args! docs
    ) else if "!filter:~0,4!"=="lldb" (
      set args=!args! !filter:-=;!
    ) else if "!filter:~0,11!"=="build-tools" (
      set args=!args! !filter:build-tools-=build-tools;!
    ) else if "!filter!"=="ndk" (
      set args=!args! ndk-bundle
    ) else if "!filter:~0,8!"=="android-" (
      set args=!args! platforms;!filter!
    ) else if "!filter:~0,6!"=="extra-" (
      set tmp=!filter:extra-=extras-!
      set args=!args! !tmp:-=;!
    ) else (
      echo Filter !filter! is not supported
      exit /b 1
    )
  )
  exit /b 0


:findSdkParam
  :sdkloop
    if "%~1"=="" ( exit /b 0 )
    set arg=%~1
    shift

    if "%arg%"=="--use-sdk-wrapper" (
      exit /b 1
    )
    goto:sdkloop

:checkMatch
  set verbs=%~1
  set objects=%~2
  set verb=""
  set object=""
  shift & shift
  :loop
    if "%~1"=="" ( goto:done )
    set arg=%~1
    shift
    if "%arg:~0,1%"=="-" ( goto:loop )
    if !verb!=="" if "!verbs:;%arg%;=!" neq "!verbs!" (
      set verb=!arg!
      goto:loop
    )
    if !verb! neq "" if "!objects:;%arg%;=!" neq "!objects!" (
      set object=!arg!
      goto:done
    )

  :done
  if !verb! neq "" if !object! neq "" exit /b 1
  exit /b 0

:invoke
  echo Invoking %*
  echo.
  call %* || exit /b 1
  exit /b 0

[solved]

If processing hangs or doesn't start while using a system proxy, close all instances of processing and open preferences.txt file in \AppData\Roaming\Processing.

Change: proxy.system=true to proxy.system=false

It should now work.

When Lantern VPN is running attempting to run a sketch causes Processing to go unresponsive until you shut Lantern down. If you close Processing, you can not start it again while Lantern is running unless you delete the preferences file.

I need Lantern to access the internet in my country. I'm on windows. Any reason why this would be happening or what I can do to make them both work at the same time?

Good news for ya @Andreas_Ref! :-bd
Just found out another CORS proxy which works for http://EkstraBladet.dk at:
https://Gist.GitHub.com/jimmywarting/ac1be6ea0297c16c477e17f8fbe51347

Here's the updated sketch: http://p5js.ProcessingTogether.com/sp/pad/export/ro.CJr$SpnCkgIPQC

/**
 * loadXML from EkstraBladet (v1.3)
 * Andreas_Ref & GoToLoop (2017-May-19)
 *
 * Forum.Processing.org/two/discussion/22668/issue-loading-xml-feed-in-p5js#Item_11
 * Gist.GitHub.com/jimmywarting/ac1be6ea0297c16c477e17f8fbe51347
 *
 * p5js.ProcessingTogether.com/sp/pad/export/ro.CJr$SpnCkgIPQC
 *
 * EkstraBladet.dk/rssfeed/sport/
 * EkstraBladet.dk/rss2/?mode=normal&submode=sport
*/

"use strict";

const HTTP = 'http:' + '//',
      //PROX = 'CORS-Anywhere.HerokuApp.com/',
      PROX = 'Dry-Sierra-94326.HerokuApp.com/',
      SITE = 'EkstraBladet.dk/',
      RSS1 = 'rssfeed/',
      RSS2 = 'rss2/',
      FILE = 'rss.xml',
      QRY0 = 'sport/',
      QRY1 = '?mode=' + 'normal', QRY2 = '&submode=' + 'sport',
      URI1 = HTTP + PROX + HTTP + SITE + RSS1 + QRY0,
      URI2 = HTTP + PROX + HTTP + SITE + RSS2 + QRY1 + QRY2,
      URI  = URI1,
      //URI  = URI2,
      REMOTE = true,
      titles = [];

let xml;

function preload() {
  console.info(URI);
  xml = loadXML(REMOTE && URI || FILE, print, console.warn);
}

function setup() {
  noCanvas();

  for (const item of xml.getChild('channel').getChildren('item'))
    titles.push(item.getChild('title').getContent());

  const ol = createElement('ol')
            .style('color', 'blue')
            .style('font-weight: bold')
            .style('font-size: 1.2em');

  for (const title of titles)  createElement('li', title).parent(ol);
}

Sorry, but I've got no idea why it's stopped working and dunno how to fix it. :(
Although http://CORS-Anywhere.HerokuApp.com proxy CORS site is still working. #-o
And this other sketch https://CodePen.io/GoSubRoutine/pen/Qdjmrm?editors=0012 is still OK. :-?

@jeremydouglass - Thank you a lot for going the extra mile and writing the code. I could not have figured this far.

I ran the code and it words very well. The changing color of the balls when interacting with the box gives a good proxy as how the direction (and speed ) can be changed too. I hopefully understand whats going on :) Thank you indeed for all the comments in the code.

And also thank you for the reference material from Jeffery Thompson. Yet to go through all the examples but realized my flaw in concepts fromand time to learn.

best regards Raj

Adding the proxy configuration fixed the problem for me. So changing "proxy.http.host=" to "proxy.http.host=myproxyserver" and so on for https and socks. On the way I uninstalled java on the machine, but that didn't fix the problem

The option "proxy.system=false" works. But in processing 3.0.1 it was not available.

Hi. I'm brand new to Processing and have had this exact problem. I can run Processing at home no problem but not on either of my work computers which are on a domain. We do run a proxy server but it's not enforced so I can by-pass it. In my preferences file I change this line "proxy.system=true" to "proxy.system=false" and now Processing runs normally. Just wanted to share on this old thread in case it helps anyone else.

Thanks

@jeremydouglass thanks, yeah that is kinda of what I looked at, here's what I came up with by mixing it altogether:

//**SIMPLE MESSAGE DISPLAY BOX WITH SCROLLING LIST ONCE BOX OVERFLOWS
//DOES NOT PERFORM WRAPPING, PRESUMES FIXED MESSAGE LENGTH IS NOT BIGGER THAN BOX WIDTH
//--->>> Press the 'x' key to add a message line when running
PGraphics textBox = new PGraphics();
PVector textBoxPos = new PVector(20, 20);
float textX = 0;
float textY = 0;
float scroll = 0;
float textHeight = 20;
float textLeading = 20;
StringList messages;
String displayText = "";

void setup()
{
  size(420, 420, P2D);
  textBox = createGraphics(380, 380, P2D);
  messages = new StringList();
}

void draw()
{
  background(255);
  textBox.beginDraw();
  textBox.background(0, 0, 0, 0);  // Transparent background but you could have it coloured.
  textBox.stroke(0, 0, 0);
  textBox.fill(0, 0, 0, 0);
  textBox.rect(0, 0, textBox.width-1, textBox.height-1);  // Black rectangle around the outside.
  textBox.textSize(textHeight);
  textBox.fill(0);
  textBox.textAlign(LEFT, TOP);
  textBox.textLeading(textLeading);
  textBox.text(displayText, textX, textY+scroll);
  textBox.endDraw();

  image(textBox, textBoxPos.x, textBoxPos.y);
}

void mouseWheel(MouseEvent event)
{
  scroll -= event.getCount()*4;  //add mouse wheel with a bit of gearing
  scroll = constrain(scroll, 0, -textY);
}

void keyPressed() {   // PROXY FOR INCOMING MESSAGES
  if (key =='x') {
    messages.append("ARE WE NEARLY THERE YET?...."+messages.size());  // add new message line (with line number)
    displayText = displayText+messages.get(messages.size()-1) +"\n"; // display the updated messages
    //--->> SHIFT LINES UP IF MORE LINES THAN BOX
    if (messages.size()>(textBox.height/textLeading)) {
      textY -= textLeading;
    }
  }
}

Here is what I get when I try to run any of the sample files in Python mode: I don't have an internet proxy.

Exception in thread "main" java.lang.RuntimeException: jycessing.mode.run.RMIUtils$RMIProblem: java.rmi.ConnectIOException: Exception creating connection to: 104.239.207.44; nested exception is: java.net.NoRouteToHostException: No route to host (Host unreachable) at jycessing.mode.run.SketchRunner.startSketchRunner(SketchRunner.java:204) at jycessing.mode.run.SketchRunner.main(SketchRunner.java:168) Caused by: jycessing.mode.run.RMIUtils$RMIProblem: java.rmi.ConnectIOException: Exception creating connection to: 104.239.207.44; nested exception is: java.net.NoRouteToHostException: No route to host (Host unreachable) at jycessing.mode.run.RMIUtils.lookup(RMIUtils.java:91) at jycessing.mode.run.SketchRunner.startSketchRunner(SketchRunner.java:201) ... 1 more Caused by: java.rmi.ConnectIOException: Exception creating connection to: 104.239.207.44; nested exception is: java.net.NoRouteToHostException: No route to host (Host unreachable) at sun.rmi.transport.tcp.TCPEndpoint.newSocket(TCPEndpoint.java:631) at sun.rmi.transport.tcp.TCPChannel.createConnection(TCPChannel.java:216) at sun.rmi.transport.tcp.TCPChannel.newConnection(TCPChannel.java:202) at sun.rmi.server.UnicastRef.newCall(UnicastRef.java:342) at sun.rmi.registry.RegistryImpl_Stub.lookup(Unknown Source) at jycessing.mode.run.RMIUtils.lookup(RMIUtils.java:89) ... 2 more Caused by: java.net.NoRouteToHostException: No route to host (Host unreachable) at java.net.PlainSocketImpl.socketConnect(Native Method) at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350) at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206) at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188) at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392) at java.net.Socket.connect(Socket.java:589) at java.net.Socket.connect(Socket.java:538) at java.net.Socket.<init>(Socket.java:434) at java.net.Socket.<init>(Socket.java:211) at sun.rmi.transport.proxy.RMIDirectSocketFactory.createSocket(RMIDirectSocketFactory.java:40) at sun.rmi.transport.proxy.RMIMasterSocketFactory.createSocket(RMIMasterSocketFactory.java:148) at sun.rmi.transport.tcp.TCPEndpoint.newSocket(TCPEndpoint.java:613) ... 7 more

I'm sure there's a reason...

There ain't none! There are many inconsistent & under-performed code throughout the library! =P~

Here's the exact link for p5::line() within p5.js' repo:
https://GitHub.com/processing/p5.js/blob/master/src/core/2d_primitives.js#L237-#L262

p5::line() is just a proxy to call the actual method @ p5.Renderer2D::line():
https://GitHub.com/processing/p5.js/blob/master/src/core/p5.Renderer2D.js#L485-L504

p5.Renderer2D.prototype.line = function(x1, y1, x2, y2) {
  var ctx = this.drawingContext;
  if (!this._doStroke) {
    return this;
  } else if(ctx.strokeStyle === styleEmpty){
    return this;
  }
  // Translate the line by (0.5, 0.5) to draw it crisp
  if (ctx.lineWidth % 2 === 1) {
    ctx.translate(0.5, 0.5);
  }
  ctx.beginPath();
  ctx.moveTo(x1, y1);
  ctx.lineTo(x2, y2);
  ctx.stroke();
  if (ctx.lineWidth % 2 === 1) {
    ctx.translate(-0.5, -0.5);
  }
  return this;
};

Everything in proxy p5::line() is slow, unnecessary & redundant! 3:-O
Even the if (!this._renderer._doStroke) { test, b/c that same check already happens in p5.Renderer2D::line()!

EDIT:
Actually, the whole p5::line() proxy method can be turned into only 1 2 single statements: >-)

p5.prototype.line = function () {
  this._renderer.line.apply(this._renderer, arguments);
  return this;
};

This .apply(this, arguments) technique is already used across many parts of the p5.js library, btW.

Learn more about it at these links below: :-B

1. https://developer.Mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Function/apply
2. https://developer.Mozilla.org/en-US/docs/Web/JavaScript/Reference/Functions/arguments

My browser will download the XML feed file http:/makezine.com/feed/ but when I run the Arduino Networked Lamp example in the Make book, the fault text says that the server returns a 403 ERROR so that the program proxy?? reads no values. Please can someone advise me on this. Is it a server problem ? Many thanks. Windows 10 PC & Processing 3.1

Forcing "preferences.txt" to go to some fixed path makes all user accounts in the same OS to share their sketches, installed libraries, etc. :-S

In the folder you uncompressed the Processing program, inside its subfolder "lib/", there's a file called "defaults.txt".

That file functions as a template for the initial generated "preferences.txt" for each OS' user.
That is, if we delete "preferences.txt" from a user, it's gonna be respawned based on "defaults.txt".

So you can change proxy settings there and hopefully each user gonna get that personalized "preferences.txt" if none exists already. :>

Apparently there's also a way to change where Processing expects its "preferences.txt"'s path to be.

In "defaults.txt", add settings.path= there, specifying the desired path for "preferences.txt"; for example your shared path. O:-)

That entry used to be part of Processing's old series.
Dunno whether it still works for Processing 3 though. :-??

Hello,

I tried to move processing folder but it didn't worked.

But i think i've found the problem : I had modified preference.txt with proxy adresses, but this morning my modifications were erased. So i put proxy adresses in preferences.txt and when i have closed processing, preferences.txt was automatically erased and re-created with no proxy adresses.

Then i modified it before launching processing and it worked : Processing launch quickly and sketches runs.

How to modify this erasing of my preferences.txt each time i close processing ?

Thanks again !

Thomas

Processing 3.2.3 64bits on Windows 7 64bits

If I try to call a windows:

void setup() {
 size (400, 500);
 background(128);
}

Nothing happen, if I try step by step in debug mode Processing Freeze at the beginning. I've captured logs with Process Monitor and I find this: Processing Query the proxy setting but seams to ignore ProxyOverride because in TCP Connect instead of connecting to himself it connect to proxy address. I've tried without proxy setting and it work fine but users can't use internet ^^

Is there a setting somewhere to fix this issue?