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I have this very same problem and cannot find a solution.

I thought I was the only one with this problem

I got the same error message.
No matter set or unset proxy, it always show 'Connection Failed......'

same problem here. even when I want to create new project it tries to download something from the net and gets time out. Need the solution...........

Build: AI-130.675642, 20130514

I have a similar or the same problem. I'm on OS X 10.7.5 sitting behind a firewall. I cannot install the Gradle tools nor check for updates; if I do, I get the error "Connection failed. Please check your network connection and try again."

I have, however, set up the correct HTTP Proxy in the preferences and "Check connection", e.g. with "http://gradle.org" is successful.

[Comment deleted]

exactly the same problem!!

Is this still happening? I haven't heard any fresh reports of it. I'll close as unreproducible. If this still occurs, please attach your idea.log file (Help menu > Show log in Explorer | Finder)

Here is my idea.log file.

@acedanger, I haven't seen a log file of a connection error, but this seems likely to be a different problem. What's the symptom here?

That was in the log file just after I tried to check for an update and it threw the connection error. That was on my Windows 8 machine. I will try it again tonight when have a moment. I'll clear out the log file prior to checking for an update.

[Comment deleted]

I apologize for the delay in responding.

Here was the process I followed. I cleared out the idea.log file. Then I opened the IDE and selected Help > Check for update. The IDE threw the connection error.

I've attached the updated log file. I also noticed that a threadDump-[timestamp].txt folder/file was created. I'm attaching that file as well.

I have the same problem too.

I guess, this is all about being behind of a proxy. I have this problem, i'll fill proxy settings then, you gonna get my feedback.

This problem still exists. I'm trying to check for updates and experience the above error. There seem to be soooo many problems with Android Studio it isn't funny. Why you continue with eclipse until the IDE is more stable.

same problem here. Toshiba laptop with win 8.1
can update sdk api file, but not the IDE

Still the same issue exists

Still the same issue exists

Sorry for me to the website

I can't update from 2.0 preview 4 to 2.0 preview 5 for several days.

every time I click "check for updates...", then tell me "Connection Error", attach the screenshot.

China can't update AndroidStudio direct

i copy same question. can't update to new version from 2.0 preview 4.

I am facing the same issue! If i try to check for update or click on Import of the Code samples its the same. I have selected No proxy in the settings.
Kindly suggest.

Attaching the file with the same error.

problem was solved, I just had to run as admin :)

[Comment deleted]

java.io.IOException: Cannot restart application: Cannot run program "C:\Users\Raushan Chandra\.AndroidStudio1.5\restart\restarter.exe": CreateProcess error=2, The system cannot find the file specified
    at com.intellij.util.Restarter.scheduleRestart(Restarter.java:79)
    at com.intellij.idea.Main.installPatch(Main.java:195)
    at com.intellij.idea.Main.main(Main.java:73)
Caused by: java.io.IOException: Cannot run program "C:\Users\Raushan Chandra\.AndroidStudio1.5\restart\restarter.exe": CreateProcess error=2, The system cannot find the file specified
    at java.lang.ProcessBuilder.start(ProcessBuilder.java:1041)
    at java.lang.Runtime.exec(Runtime.java:617)
    at java.lang.Runtime.exec(Runtime.java:485)
    at com.intellij.util.Restarter.doScheduleRestart(Restarter.java:153)
    at com.intellij.util.Restarter.restartOnWindows(Restarter.java:118)
    at com.intellij.util.Restarter.scheduleRestart(Restarter.java:70)
    ... 2 more
Caused by: java.io.IOException: CreateProcess error=2, The system cannot find the file specified
    at java.lang.ProcessImpl.create(Native Method)
    at java.lang.ProcessImpl.<init>(ProcessImpl.java:385)
    at java.lang.ProcessImpl.start(ProcessImpl.java:136)
    at java.lang.ProcessBuilder.start(ProcessBuilder.java:1022)
    ... 7 more

Indonesia
29 Apr 2016 13.30, <android@googlecode.com> menulis:

A

Pada tanggal 22 Mei 2016 08.54, <android@googlecode.com> menulis:

Contents scrubbed on user request by admin.

[Comment deleted]

Xav: Adding Esteban - and Tor who worked on the updater. Challenge here is it's very hard to figure out what's happening. At the very least we should improve the error message. Can we also add code to Studio so when we hit this issue we can get a better error report / log so we can figure out what the issue is.

Removing release-exemption so we can discuss in Triage.

Sounds like this is an issue in IntelliJ and they do not yet have fix. We have not been able to reproduce the issue or have an easy fix. We are going to add more code to better understand the issue in Android Studio 2.2 and hope to have a fix in an upcoming version of Android Studio.

Removing the release exemption as we start to resolve bugs in Android Studio 2.3.

Facing same issue. Why don't you solve the problem that is ongoing for 3 years?

The following steps helped fix this issue:

In your Android Studio, Go to File

Select Settings

Select HTTP Proxy

Change no proxy to auto-direct proxy settings

Click check connection . check with any Site

SOURCE: https://stackoverflow.com/questions/16583394/android-studio-update-fails
SOLUTION PROVIDER: https://stackoverflow.com/users/1794882/faztrick-fazil-pv

Hi!

If this is still an issue, please lets us know by filing a bug via https://developer.android.com/studio/report-bugs

Thank you!

It's still not working.

it still not working, It had been 3rd day now I am trying to solve this

I am facing this issue as well. Can anyone please advice.