MIT app inventor?

[Lee91]

I've updated Java, which now shows an error message as to why it's failing:

mit app inventor.png

<jnlp spec="1.0+" codebase="http://beta.appinventor.mit.edu:80/ode2/webstartfile/125_d72c6vqyl6k0ayok2g5bgwodgsg22hbxi4x8cqjazma568kg9ec1gt5dwm1vwpdx8ilv77epartu511h4u5wxemwajqg7c4zavr9kb7d3jo8gnoclw2u2zzhbu24dngbbz83ckamid">
  <information>
    <title>App Inventor for Android Blocks Editor</title>
    <vendor>MIT Center for Mobile Learning</vendor>
    <description>App Inventor for Android Blocks Editor</description>
  </information>
  <security>

JNLPException[category: Security Error : Exception: null : LaunchDesc: 
<jnlp spec="1.0+" codebase="http://beta.appinventor.mit.edu:80/ode2/webstartfile/125_d72c6vqyl6k0ayok2g5bgwodgsg22hbxi4x8cqjazma568kg9ec1gt5dwm1vwpdx8ilv77epartu511h4u5wxemwajqg7c4zavr9kb7d3jo8gnoclw2u2zzhbu24dngbbz83ckamid">
  <information>
    <title>App Inventor for Android Blocks Editor</title>
    <vendor>MIT Center for Mobile Learning</vendor>
    <description>App Inventor for Android Blocks Editor</description>
  </information>
  <security>
    <all-permissions/>
  </security>
  <update check="always" policy="always"/>
  <resources>
    <j2se version="1.5+" max-heap-size="925m" java-vm-args=""/>
    <jar href="BlocksEditor.jar"/>
  </resources>
  <application-desc main-class="com.google.appinventor.blockseditor.youngandroid.YaHttpServerMain">
    <argument>http://beta.appinventor.mit.edu:80/ode2/webstartfile/</argument>
    <argument>125_d72c6vqyl6k0ayok2g5bgwodgsg22hbxi4x8cqjazma568kg9ec1gt5dwm1vwpdx8ilv77epartu511h4u5wxemwajqg7c4zavr9kb7d3jo8gnoclw2u2zzhbu24dngbbz83ckamid/</argument>
  </application-desc>
</jnlp> ]
	at com.sun.javaws.security.JNLPSignedResourcesHelper.checkSignedResourcesHelper(Unknown Source)
	at com.sun.javaws.security.JNLPSignedResourcesHelper.checkSignedResources(Unknown Source)
	at com.sun.javaws.Launcher.prepareResources(Unknown Source)
	at com.sun.javaws.Launcher.prepareAllResources(Unknown Source)
	at com.sun.javaws.Launcher.prepareToLaunch(Unknown Source)
	at com.sun.javaws.Launcher.prepareToLaunch(Unknown Source)
	at com.sun.javaws.Launcher.launch(Unknown Source)
	at com.sun.javaws.Main.launchApp(Unknown Source)
	at com.sun.javaws.Main.continueInSecureThread(Unknown Source)
	at com.sun.javaws.Main$1.run(Unknown Source)
	at java.lang.Thread.run(Unknown Source)

    <all-permissions/>
  </security>
  <update check="always" policy="always"/>
  <resources>
    <j2se version="1.5+" max-heap-size="925m" java-vm-args=""/>
    <jar href="BlocksEditor.jar"/>
  </resources>
  <application-desc main-class="com.google.appinventor.blockseditor.youngandroid.YaHttpServerMain">
    <argument>http://beta.appinventor.mit.edu:80/ode2/webstartfile/</argument>
    <argument>125_d72c6vqyl6k0ayok2g5bgwodgsg22hbxi4x8cqjazma568kg9ec1gt5dwm1vwpdx8ilv77epartu511h4u5wxemwajqg7c4zavr9kb7d3jo8gnoclw2u2zzhbu24dngbbz83ckamid/</argument>
  </application-desc>
</jnlp>

Any ideas?

[reggiep]

This is no help but just to let you know it is happening for us too.
Admins go through same filter as staff and it is running for admins but not staff!

[reggiep]

Also there is an open thread about this issue on their own support forum https://groups.google.com/forum/embe...rs/jKHkkyfZEeQ

[MrWu]

Hi

Same issue here with our school (we use a Sonicwall E5500 / Impero for content filtering.) Initally I thought it was a permissions issue (Domainadmins work, student/teachers do not)

Will turn each one of these off to test and feedback if it helps.

Wil

Ps anyone know any good alternative to MIT apps as a Plan B ?

[CyberNerd]

Try a different version of java.
We had similar error using IcedTea wirth Open JDK but using Oracle 7 worked ok.

[Lee91]

Also, this is what the Java debug console logs:

Trying to download phone app apk

Phone app apk saved into temp file: C:\Users\USER~1.DOM\AppData\Local\Temp\aia33382419 01795979705.apk
systemId is file:///C:/Users/USER.DOMAIN/Desktop/ignore_lang_def.dtd publicId is null

Reading language definition DTD from jar resources.
Preparing phone for new project
Creating GUI...
==== Loading form, project is test_copy
No zip file from server. Returning empty file map.

And then nothing happens.

[CyberNerd]

are you running a local build server?

[LukeC]

What version of java, and have you installed the tiny piece of software app inventor likes?

[Lee91]

No, we are not running a local build server.
We are running Java 6, also tried Java 7 with the same results. Yes we have installed the android emulator software but it has made no difference

Lee

[CyberNerd]

did you make any progress with this?

[Lee91]

Nope, still got the same thing...

[rad]

Bump....

I have been asked to install this, also on CC4 but runs as staff and Admin but not as a student. All users use same internet settings/connection.

Any help would be great, I have logged a call with RM too.

[Lee91]

Bump....

I have been asked to install this, also on CC4 but runs as staff and Admin but not as a student. All users use same internet settings/connection.

Any help would be great, I have logged a call with RM too.

I found out that students are blocked from running scripts by default on CC4 - Enable this in the RMMC and it works BUT we are not going to do this as it's too much of a security risk.

[Sylv3r]

The only way I could see to get this to work on a CC4 network for students was to remove the station security!

[BStevens]

We have had the same issue.

The problem we had is that command prompt script processing was set to "Yes" we changed this to "No" and it works!

Not sure of the security implications though!

mitapp.png