I have not been able to find a thread that directly addresses this issue. I have a brand new Yun and am going through the initial configuration. After logging in to the web configuration using the default "arduino" password, I enter the board configuration screen through my web browser. I am able to enter all information, but it does not detect a wireless network. When I select "Configure & Restart" I receive the following error:
Failed to execute call dispatcher target for entry '/webpanel/config'.
The called action terminated with an exception:
?:0: attempt to index a nil value
stack traceback:
: in function 'assert'
?: in function 'dispatch'
?: in function <?:194>
I have tried using Windows 7 and Windows 8. I have tried Chrome, IE, and Firefox first using wireless, then plugging the Yun in to ethernet and accessing the IP address assigned by my Linksys router. I have tried disabling my Windows firewall, as well as disabling my Bitdefender firewall. I have tried all of the reset buttons for 30+ seconds. Everything seems to be running fine on the Yun, just this communication error that I don't understand.
Can someone please point me in the right direction?
Thanks
Thank you for the suggestion, but this did not help my problem. I ran through the commands in the console to reset the WiFi to factory condition, but I am receiving the same error. The issue is not with accessing the WiFi on the Yun, but getting the configuration to save, and getting the Yun to recognize the wireless network provided by my router.
Are there any other steps I can take, or another thread I can follow?
I followed everything in the above recommendation with Firefox, Chrome, and IE
From the console I did a factory reset
root@Arduino:/# /usr/bin/reset-to-factory-anyway
Then I reset the WiFi
root@Arduino:/# /usr/bin/wifi-reset-and-reboot
And then cycled the power on the Yun. I am still receiving the same error when I click "Configure & Restart"
Failed to execute call dispatcher target for entry '/webpanel/config'.
The called action terminated with an exception:
?:0: attempt to index a nil value
stack traceback:
: in function 'assert'
?: in function 'dispatch'
?: in function <?:194>[/quote]
It looks like an issue with OpenWRT, but I'm not familiar with it.
I uploaded the console sketch they provided to my Yun. Then I used PuTTY and telnet to connect to the Yun and run the console. I was able to send 'H' to set the on-board LED high, and 'L' to set it low from the console. While that was running I used Firefox to login to the Yun at 192.168.240.1 for the web config. To my surprise, I was able to complete the configuration successfully, and it recognized my wireless network. I am now able to access the Yun from my wireless network without having to directly connect to the Yun.
I have no idea why this worked, but it did. Maybe someone can provide a better explanation.
I have the exact same issue. Brand new only just opened Yun and same error message and no detected wifi points regardless of operating system and browser used to access the device.
I have tried over WiFi and over Ethernet, neither yield different results. Upon submitting configuration details the following error is thrown (same as PiMios).
Failed to execute call dispatcher target for entry '/webpanel/config'.
The called action terminated with an exception:
?:0: attempt to index a nil value
stack traceback:
[C]: in function 'assert'
?: in function 'dispatch'
?: in function <?:194>
More than a bit disappointing - I hope I haven't got a dud unit, I repeated the steps PiMos reported to fix his device but it did not work for mine. I followed his entire chain of events just in case the solution depends on the prior - nothing.
As I stated I have used all possible combinations of operating systems and web browsers available to me, I have restored the device all the ways possible multiple times now and I followed all instructions prior to my original post in this thread. It simply doesn't work.
I think I have found the problem but I am unsure how to fix it.
First I noticed a javascript error in firefox:
Then I opened the resource directly and saw that the js file was ending prematurely:
"use strict";function formCheck(e){function a(e){return e==null||e===""}var t=e["wifi.ssid"],n=e["wifi.encryption"],r=e["wifi.password"],i=e.hostname,s=e.password,o,u=document.getElementById("error_response");return u.innerHTML="",o=!1,r.className="normal",t.className="normal",i.className="normal",s.className="normal",u.className="hidden",!t.disabled&&a(t.value)&&(errorHandler(t,u,"Please choose a WiFi network name"),o=!0),!r.disabled&&n.value!="none"&&(a(r.value)?(errorHandler(r,u,"Please choose a WiFi password"),o=!0):r.value.length<8&&(errorHandler(r,u,"WiFi password should be 8 char at least"),o=!0)),a(i.value)?(errorHandler(i,u,"Please choose a name for your Yún"),o=!0):i.value.match(/[^a-zA-Z0-9]/)&&(errorHandler(i,u,"You can only use alphabetical characters for the hostname (A-Z or a-z)"),o=!0),s.value!=null&&s.value!=""&&s.value.length<8&&(errorHandler(s,u,"Password should be 8 char at least"),o=!0),!o}function formReset(){setTimeout(function(){grey_out_wifi_conf(!document.getElementById("wificheck").checked),onchange_security(document.getElementById("wifi_encryption"))},100)}function errorHandler(e,t,n){e.className="error",t.className="visible",t.innerHTML="<p>"+t.innerHTML+n+"
</p>"}function goto(e){return document.location=e,!1}function onchange_security(e){var t=document.getElementById("wifi_password_container"),n=document.getElementById("wifi_password");e.value=="none"?t.setAttribute("class","hidden"):(t.removeAttribute("class"),n.value="",n.focus())}function send_post(e,t,n){var r={};for(var i=3;i<arguments.length;i++)t[arguments[i]].disabled||(r[arguments[i]]=t[arguments[i]].value);var s=doEncrypt(key_id,0,public_key,JSON.stringify(r)),o=document.getElementById(n);return o.pgp_message.value=s,o.submit(),!1}function grey_out_wifi_conf(e){e?document.getElementById("wifi_container").setAttribute("class","disabled"):document.getElementById("wifi_container").setAttribute("class",""),document.getElementById("wifi_password").disabled=e,document.getElementById("wifi_ssid").disabled=e,document.getElementById("wifi_encryption").disabled=e,document.getElementById("detected_wifis").disabled=e}function matchpassword(){var e=document.getElementById("confpassword"),t=document.getElementById("password");e.value==t.value?document.getElementById("pass_mismatch").setAttribute("class","hidden error_container input_message"):document.getElementById("pass_mismatch").setAttribute("class","error_container input_message")}var pu,key_id,public_key;typeof getPublicKey=="function"&&(pu=new getPublicKey(pub_key),key_id=pu.keyid,public_key=pu.pkey.replace(/\n/g,"")),document.body.onload=function(){document.getElementById("username")&&document.getElementById("password").focus();var e=document.getElementById("wificheck");e&&(e.onclick=function(e){grey_out_wifi_conf(!e.target.checked)});var t=document.getElementById("wifi_encryption");t&&(t.onchange=function(e){onchange_security(e.target)});var n=document.getElementById("confpassword");n&&(n.onkeyup=matchpassword,document.getElementById("password").onkeyup=matchpassword);var r=document.getElementById("dmesg");r&&($("#dmesg").hide(),$("#dmesg_toogle").on("click",function(){return $(this).text()=="Show"?($("#dmesg").show(),$(this).text("Hide")):($("#dmesg").hide(),$(this).text("Show")),!1}));var i=document.getElementById("detected_wifis");if(i){var s=function(){var e=$("#detected_wifis");return e[0].disabled?!1:(e.empty(),e.append("<option>Detecting ...</option>"),$.get(refresh_wifi_url,function(t){e.empty(),e.append("<option>Select a wifi network...</option>");for(var n=0;n<t.length;n++){var r='<option value="'+t[n].name+"|||"+t[n].encryption+'">'+t[n].name;t[n].encryption!=="none"&&(r=r+" ("+t[n].pretty_encryption+")"),r+="</option>",e.append(r)}}),!1)};document.getElementById("refresh_detected_wifis").onclick=s,i.onchange=function(){var e=$("#detected_wifis").val().split("|||");if(e.length!==2)return;$("#wifi_ssid").val(e[0]);var t=$("#wifi_encryption");t.val(e[1]),t.change()},s()}var o=document.getElementById("restopen");if(o){var u=function(){var e={};e[this.name]=$(this).val(),$.post(this.form.action,e)};o.onclick=u,document.getElementById("restpass").on
So I ssh'd into the yun and the full file should be:
"use strict";function formCheck(e){function a(e){return e==null||e===""}var t=e["wifi.ssid"],n=e["wifi.encryption"],r=e["wifi.password"],i=e.hostname,s=e.password,o,u=document.getElementById("error_response");return u.innerHTML="",o=!1,r.className="normal",t.className="normal",i.className="normal",s.className="normal",u.className="hidden",!t.disabled&&a(t.value)&&(errorHandler(t,u,"Please choose a WiFi network name"),o=!0),!r.disabled&&n.value!="none"&&(a(r.value)?(errorHandler(r,u,"Please choose a WiFi password"),o=!0):r.value.length<8&&(errorHandler(r,u,"WiFi password should be 8 char at least"),o=!0)),a(i.value)?(errorHandler(i,u,"Please choose a name for your Yún"),o=!0):i.value.match(/[^a-zA-Z0-9]/)&&(errorHandler(i,u,"You can only use alphabetical characters for the hostname (A-Z or a-z)"),o=!0),s.value!=null&&s.value!=""&&s.value.length<8&&(errorHandler(s,u,"Password should be 8 char at least"),o=!0),!o}function formReset(){setTimeout(function(){grey_out_wifi_conf(!document.getElementById("wificheck").checked),onchange_security(document.getElementById("wifi_encryption"))},100)}function errorHandler(e,t,n){e.className="error",t.className="visible",t.innerHTML="<p>"+t.innerHTML+n+"
</p>"}function goto(e){return document.location=e,!1}function onchange_security(e){var t=document.getElementById("wifi_password_container"),n=document.getElementById("wifi_password");e.value=="none"?t.setAttribute("class","hidden"):(t.removeAttribute("class"),n.value="",n.focus())}function send_post(e,t,n){var r={};for(var i=3;i<arguments.length;i++)t[arguments[i]].disabled||(r[arguments[i]]=t[arguments[i]].value);var s=doEncrypt(key_id,0,public_key,JSON.stringify(r)),o=document.getElementById(n);return o.pgp_message.value=s,o.submit(),!1}function grey_out_wifi_conf(e){e?document.getElementById("wifi_container").setAttribute("class","disabled"):document.getElementById("wifi_container").setAttribute("class",""),document.getElementById("wifi_password").disabled=e,document.getElementById("wifi_ssid").disabled=e,document.getElementById("wifi_encryption").disabled=e,document.getElementById("detected_wifis").disabled=e}function matchpassword(){var e=document.getElementById("confpassword"),t=document.getElementById("password");e.value==t.value?document.getElementById("pass_mismatch").setAttribute("class","hidden error_container input_message"):document.getElementById("pass_mismatch").setAttribute("class","error_container input_message")}var pu,key_id,public_key;typeof getPublicKey=="function"&&(pu=new getPublicKey(pub_key),key_id=pu.keyid,public_key=pu.pkey.replace(/\n/g,"")),document.body.onload=function(){document.getElementById("username")&&document.getElementById("password").focus();var e=document.getElementById("wificheck");e&&(e.onclick=function(e){grey_out_wifi_conf(!e.target.checked)});var t=document.getElementById("wifi_encryption");t&&(t.onchange=function(e){onchange_security(e.target)});var n=document.getElementById("confpassword");n&&(n.onkeyup=matchpassword,document.getElementById("password").onkeyup=matchpassword);var r=document.getElementById("dmesg");r&&($("#dmesg").hide(),$("#dmesg_toogle").on("click",function(){return $(this).text()=="Show"?($("#dmesg").show(),$(this).text("Hide")):($("#dmesg").hide(),$(this).text("Show")),!1}));var i=document.getElementById("detected_wifis");if(i){var s=function(){var e=$("#detected_wifis");return e[0].disabled?!1:(e.empty(),e.append("<option>Detecting ...</option>"),$.get(refresh_wifi_url,function(t){e.empty(),e.append("<option>Select a wifi network...</option>");for(var n=0;n<t.length;n++){var r='<option value="'+t[n].name+"|||"+t[n].encryption+'">'+t[n].name;t[n].encryption!=="none"&&(r=r+" ("+t[n].pretty_encryption+")"),r+="</option>",e.append(r)}}),!1)};document.getElementById("refresh_detected_wifis").onclick=s,i.onchange=function(){var e=$("#detected_wifis").val().split("|||");if(e.length!==2)return;$("#wifi_ssid").val(e[0]);var t=$("#wifi_encryption");t.val(e[1]),t.change()},s()}var o=document.getElementById("restopen");if(o){var u=function(){var e={};e[this.name]=$(this).val(),$.post(this.form.action,e)};o.onclick=u,document.getElementById("restpass").onclick=u}};
So the problem is that the yun isn't sending the full js file - that's very weird, perhaps someone can shed some further light onto this?
This same javascript issue is happening on multiple computers / browsers with the Yun device. So please don't blame the computer or me!
Hi
I had the exact same problem. I could not choose a network to connect the YUN to.
The errormessages were the same.
Trying different browsers helpt (maybe there is one you didn't try, I faild on 2 PCs and 4 Browsers). Internet Explorer 11 worked for me firefox and Chrome on the other hand didn't.
Maybe this helped you, if not: my deepest appologies.
