NetBeans unable to connect to Android Emulator AVD

Question

i use NetBeans to develop an HTML5 cordova-based android app. Netbeans and android SDK is installed on an linux Workstation - Ubuntu 14.04 (x64).

For that, I like to run the app insight an existing (and running) android emulator (AVD). The AVD works fine and is also reachable using telnet:

$ telnet localhost 5554
Trying 127.0.0.1...
Connected to localhost.
Escape character is '^]'.
Android Console: type 'help' for a list of commands
OK

But: if I try to execute/run the app in NetBeans, NB returns 2 dialog boxes:

info: Connecting to android device...

and

error: Please run Android Emulator

I had the same setup on windows running out of the box. But it is not working on ubuntu.

So my question is: how to debug this problem and what could be the reason, why NetBenas does not find the emulator?

Is there an NetBeans setting somewhere?

//Edit: with the Help of @ladar i found out, that an library is missing:

libstdc++.so.6: cannot open shared object file

This library is needed by adb, which is startet by NetBeans. But: After installing libx32stdc++6 and libx64stdc++6 the error still exists. adbis unable to locate that library:

$ ldd /opt/android-sdk-linux/platform-tools/adb
    linux-gate.so.1 =>  (0xf778d000)
    librt.so.1 => /lib/i386-linux-gnu/librt.so.1 (0xf7632000)
    libdl.so.2 => /lib/i386-linux-gnu/libdl.so.2 (0xf762d000)
    libpthread.so.0 => /lib/i386-linux-gnu/libpthread.so.0 (0xf7610000)
    libstdc++.so.6 => not found
    libm.so.6 => /lib/i386-linux-gnu/libm.so.6 (0xf75ca000)
    libgcc_s.so.1 => /lib/i386-linux-gnu/libgcc_s.so.1 (0xf75ad000)
    libc.so.6 => /lib/i386-linux-gnu/libc.so.6 (0xf73fd000)
    /lib/ld-linux.so.2 (0xf778e000)

The 32bit files was placed in. /usr/libx32/. So I added an link to /lib/i386-linux-gnu/. Running strace recognizances the library at its new possition, but still resuolts in an error:

$ strace /opt/android-sdk-linux/platform-tools/adb
execve("/opt/android-sdk-linux/platform-tools/adb", ["/opt/android-sdk-linux/platform-"...], [/* 64 vars */]) = 0
[ Process PID=15558 runs in 32 bit mode. ]
brk(0)                                  = 0xfffffffff7913000
[...]
open("/lib/i386-linux-gnu/cmov/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/lib/i386-linux-gnu/cmov", 0xffa155b0) = -1 ENOENT (No such file or directory)
open("/lib/i386-linux-gnu/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = 3
read(3, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\340\243\4\0004\0\0\0"..., 512) = 512
close(3)                                = 0
stat64("/lib/i386-linux-gnu", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
open("/usr/lib/i386-linux-gnu/tls/i686/sse2/cmov/libstdc++.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat64("/usr/lib/i386-linux-gnu/tls/i686/sse2/cmov", 0xffa155b0) = -1 ENOENT (No such file or directory)
[...]
writev(2, [{"/opt/android-sdk-linux/platform-"..., 41}, {": ", 2}, {"error while loading shared libra"..., 36}, {": ", 2}, {"libstdc++.so.6", 14}, {": ", 2}, {"cannot open shared object file", 30}, {": ", 2}, {"No such file or directory", 25}, {"\n", 1}], 10/opt/android-sdk-linux/platform-tools/adb: error while loading shared libraries: libstdc++.so.6: cannot open shared object file: No such file or directory
) = 155
exit_group(127)                         = ?
+++ exited with 127 +++

...and I have no idea why....

The Android emulator is running when you're trying to run the project, right? NetBeans won't start it by itself. Also you might want to look to IDE log (http://wiki.netbeans.org/FaqLogMessagesFile), perhaps there will be something. There could be also issue if you have Android device connected (with USB debugging) to PC at the same time as emulator is running — ladar, Nov 21 '14 at 10:05
@ladar yes, android emulator is running (long) before trying to run the project. And: there is no Android device connected on USB. I will take a look into the IDE log. Thank you. — The Bndr, Nov 21 '14 at 10:26
@ladar The link to the Wiki/logFile location was an good advice. Thank you. The reason is probably an missing lib for adb `libstdc++.so.6: cannot open shared object file`. Installing `libx32stdc++6` and `libx64stdc++6` didn't solve that problem.:-/ But now I have an way to investigate the problem. — The Bndr, Nov 21 '14 at 11:09
You could try to run Cordova app on emulator using command line API (http://cordova.apache.org/docs/en/4.0.0/guide_cli_index.md.html#The%20Command-Line%20Interface). This would help you to find out if NetBeans are related to your issue or if it is not related to NetBeans — ladar, Nov 21 '14 at 12:19
@ladar Now, I think, NetBeans is not releated to this issue, because the same error appears, if I run `adb` from command line. But if I change the title of this question, other users with the same "NetBeans problem" will not find this thread. — The Bndr, Nov 21 '14 at 13:13

score 1 · Accepted Answer · answered Jan 12 '15 at 08:10

I like to answer my own question for the case, that someone has the same issue: installing the 32bit versions of several packages did not solve the problem.

The point is to install the ...-dev packages too. The following line solves the problem:

sudo apt-get install lib32stdc++6 lib32z1 lib32z1-dev

NetBeans unable to connect to Android Emulator AVD

1 Answers1