blocks|key|776426|text|看起来和here有同样的问题。重新启动pc解决了那里的问题。我还没有找到任何其他的解决方案。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|776427|entityMap|0|LINK|mutability|MUTABLE|url|http://www.eclipse.org/forums/index.php/m/502101/^0|4|4|0|0^^$0|@$1|2|3|4|5|6|7|L|8|@]|9|@$A|M|B|N|1|O]]|C|$]]|$1|D|3|-4|5|6|7|P|8|@]|9|@]|C|$]]]|E|$F|$5|G|H|I|C|$J|K]]]]

Looks like the same problem as <a href="http://www.eclipse.org/forums/index.php/m/502101/" rel="nofollow">here</a>. A reboot of the pc fixed the problem there. I haven't found any other solutions.

blocks|key|776512|text|我也有同样的问题。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|776513|昨天一切正常，现在什么都没有了--和你给出的错误一样。我发现网络管理员在此期间做了一些改变。一些防火墙的东西。问题是Eclipse试图在"localhost“(和一些随机端口)建立到JVM的连接。当我尝试pinging+localhost+(或127.0.0.1)时，得到的结果如下：|776514|C:\Windows\system32>ping+127.0.0.1
Pinging+127.0.0.1+with+32+bytes+of+data:
PING:+transmit+failed.+General+failure.
PING:+transmit+failed.+General+failure.
PING:+transmit+failed.+General+failure.
PING:+transmit+failed.+General+failure.|code-block|syntax|javascript|776515|和|776516|C:\Windows\system32>ping+localhost
Ping+request+could+not+find+host+localhost.+Please+check+the+name+and+try+again.|776517|它认为，在某些情况下，DNS有望解决这个问题，如果防火墙阻止本地主机请求DNS+-+stuff中断。我必须更改主机文件并删除以下行中的注释，因此我将不再依赖DNS：|776518|#+127.0.0.1+++++++localhost
#+::1+++++++++++++localhost|776519|虽然写的是主机文件更改立即生效，但我认为在我的情况下，某些进程锁定了它并重新启动是必要的。在那之后，一切都恢复了正常。|776520|entityMap^0|0|0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|U|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|V|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|W|8|@]|9|@]|A|$G|H]]|$1|I|3|J|5|6|7|X|8|@]|9|@]|A|$]]|$1|K|3|L|5|F|7|Y|8|@]|9|@]|A|$G|H]]|$1|M|3|N|5|6|7|Z|8|@]|9|@]|A|$]]|$1|O|3|P|5|F|7|10|8|@]|9|@]|A|$G|H]]|$1|Q|3|R|5|6|7|11|8|@]|9|@]|A|$]]|$1|S|3|-4|5|6|7|12|8|@]|9|@]|A|$]]]|T|$]]

I just had the same problem.

Yesterday everything worked fine, now nothing - same error as you gave. I found out that network admins made some changes in the meantime. Some firewall stuff. Problem is that Eclipse tries to establish connection to JVM at "localhost" (and some random port). When I tried pinging localhost (or 127.0.0.1) I got following:

<pre><code>C:\Windows\system32&gt;ping 127.0.0.1
Pinging 127.0.0.1 with 32 bytes of data:
PING: transmit failed. General failure.
PING: transmit failed. General failure.
PING: transmit failed. General failure.
PING: transmit failed. General failure.
</code></pre>

and

<pre><code>C:\Windows\system32&gt;ping localhost
Ping request could not find host localhost. Please check the name and try again.
</code></pre>

It seams that in some cases DNS is expected to resolve this, and if firewall prevents localhost requests to DNS - stuff breaks. I had to alter hosts file and remove comments in following lines, so I would not rely on DNS for this anymore:

<pre><code># 127.0.0.1 localhost
# ::1 localhost
</code></pre>

Although it is written that hosts file changes take effect immediately, I think that some processes locked this and restart was necessary in my case. After that, everything worked again.

blocks|key|776689|text|我在我的ubuntu机器上也收到了同样的错误，因为/etc/hosts文件出了点问题。我注释掉了localhost到127.0.0.1的映射，更复杂的是，还有一个交换文件挂起。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|776690|这是我的/etc/hosts的第一行：|776691|127.0.0.1+++++++#localhost|code-block|syntax|javascript|776692|删除#解决了这个问题，而重新启动则没有。|776693|entityMap^0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|N|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|O|8|@]|9|@]|A|$G|H]]|$1|I|3|J|5|6|7|P|8|@]|9|@]|A|$]]|$1|K|3|-4|5|6|7|Q|8|@]|9|@]|A|$]]]|L|$]]

I was getting the same error on my ubuntu machine because of a mishap with the /etc/hosts file. I had commented out the mapping of localhost to 127.0.0.1, and to complicate matters further there was a swap file hanging around.

This was the first line of my /etc/hosts:

<pre><code>127.0.0.1 #localhost
</code></pre>

Deleting the # fixed the problem, whereas rebooting understandably had not.

blocks|key|560343|text|这很简单，只需在eclipse.ini文件中做以下更改即可。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|560344|-vm
binary\com.sun.java.jdk.win32.x86_1.6.0.u43\jre\bin\javaw.exe|code-block|syntax|javascript|560345|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

Its Very Simple,Just do the Following Changes in eclipse.ini file.

<pre><code>-vm
binary\com.sun.java.jdk.win32.x86_1.6.0.u43\jre\bin\javaw.exe
</code></pre>

blocks|key|776859|text|我的原因和解决方案完全不同。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|776860|我认为在我的案例中，这是由于安装了JProfiler。我通过卸载JProfiler并使用-clean选项启动eclipse修复了这个问题。我怀疑JProfiler在调试器中插入了自己。-clean选项强制Eclipse重新评估其插件，因此仅此一项可能就足够了。|offset|length|style|CODE|776861|entityMap^0|0|18|6|2K|6|0^^$0|@$1|2|3|4|5|6|7|J|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|K|8|@$D|L|E|M|F|G]|$D|N|E|O|F|G]]|9|@]|A|$]]|$1|H|3|-4|5|6|7|P|8|@]|9|@]|A|$]]]|I|$]]

My cause &amp; solution were completely different. 
I think in my case it was due to the installation of JProfiler. I fixed it by uninstalling JProfiler and launching eclipse with the <code>-clean</code> option. I suspect that JProfiler was inserting itself in the debugger. The <code>-clean</code> option forces Eclipse to re-assess its plugins, so that alone might have been sufficient.

blocks|key|560443|text|为我解决的是删除glassfish主文件夹中域文件夹中的整个domain1文件夹。Eclipse会要求你重新创建一个域，然后一切都会恢复正常。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|560444|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

What solved for me was deleting the entire domain1 folder inside the domains folder on glassfish main folder. 
Eclipse will ask you to recreate a domain and then everything works again.

blocks|key|776927|text|我在使用-X格式时发现了一个错误：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|776928|java+-Xdebug+-Xrunjdwp:server=y,transport=dt_socket,address=4000,suspend=n+myapp|code-block|syntax|javascript|776929|当我切换到新的格式时，这个错误就消失了：|776930|java+-agentlib:jdwp=transport=dt_socket,server=y,address=4000,suspend=n+myapp|776931|entityMap^0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|N|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|O|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|P|8|@]|9|@]|A|$E|F]]|$1|K|3|-4|5|6|7|Q|8|@]|9|@]|A|$]]]|L|$]]

I was seeing an error while using the -X format:

<pre><code>java -Xdebug -Xrunjdwp:server=y,transport=dt_socket,address=4000,suspend=n myapp
</code></pre>

The error went away when I switched to the newer format:

<pre><code>java -agentlib:jdwp=transport=dt_socket,server=y,address=4000,suspend=n myapp
</code></pre>

blocks|key|560529|text|我变了|type|unstyled|depth|inlineStyleRanges|entityRanges|data|560530|-agentlib:jdwp=transport=dt_socket,address=9009,server=n,suspend=y|code-block|syntax|javascript|560531|至|560532|-agentlib:jdwp=transport=dt_socket,address=9009,server=y,suspend=n|560533|这就成功了！|560534|entityMap^0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|O|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|P|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|Q|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|R|8|@]|9|@]|A|$E|F]]|$1|K|3|L|5|6|7|S|8|@]|9|@]|A|$]]|$1|M|3|-4|5|6|7|T|8|@]|9|@]|A|$]]]|N|$]]

I changed 

<pre><code>-agentlib:jdwp=transport=dt_socket,address=9009,server=n,suspend=y
</code></pre>

to 

<pre><code>-agentlib:jdwp=transport=dt_socket,address=9009,server=y,suspend=n
</code></pre>

and that did the trick!

blocks|key|560610|text|有相同的问题，但是解决方案是使用-server=y选项而不是-server=n来运行应用程序。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|560611|之前：|560612|java+-agentlib:jdwp=transport=dt_socket,server=n,suspend=y,address=localhost:5005+|code-block|syntax|javascript|560613|之后：|560614|java+-agentlib:jdwp=transport=dt_socket,server=y,suspend=y,address=localhost:5005|560615|entityMap^0|G|9|U|9|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|S|8|@$9|T|A|U|B|C]|$9|V|A|W|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|X|8|@]|D|@]|E|$]]|$1|H|3|I|5|J|7|Y|8|@]|D|@]|E|$K|L]]|$1|M|3|N|5|6|7|Z|8|@]|D|@]|E|$]]|$1|O|3|P|5|J|7|10|8|@]|D|@]|E|$K|L]]|$1|Q|3|-4|5|6|7|11|8|@]|D|@]|E|$]]]|R|$]]

Had same problem, but the solution was to run the application with <code>-server=y</code> option and not with <code>-server=n</code>.

Before:

<pre><code>java -agentlib:jdwp=transport=dt_socket,server=n,suspend=y,address=localhost:5005 
</code></pre>

After:

<pre><code>java -agentlib:jdwp=transport=dt_socket,server=y,suspend=y,address=localhost:5005
</code></pre>

I am trying to debug a simple Java application on my machine using Eclipse as an IDE. When I try to debug the application by entering the Debug Perspective, I set a breakpoint and start debug. Within a few seconds, the following pop-up window: 

<code>Launching unicodeRead has encountered a problem. Cannot connect to VM</code>. 

The message dumped on the console is as follows: 

<pre><code>ERROR: transport error 202: connect failed: Connection refused
ERROR: JDWP Transport dt_socket failed to initialize, TRANSPORT_INIT(510)
JDWP exit error AGENT_ERROR_TRANSPORT_INIT(197): No transports initialized [../../../src/share/back/debugInit.c:708]
FATAL ERROR in native method: JDWP No transports initialized, jvmtiError=AGENT_ERROR_TRANSPORT_INIT(197) 
</code></pre>

How do I correct this? Why does this happen?

Unable to debug in Java with eclipse

防火墙

调试器

Windows

Eclipse

Java

我正在尝试使用Eclipse作为IDE在我的机器上调试一个简单的Java应用程序。当我试图通过进入debug透视图来调试应用程序时，我设置了一个断点并开始调试。几秒钟后，将弹出以下窗口：Launching unicodeRead has encountered a problem. Cannot connect to ...

问无法使用eclipse在Java中进行调试
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