Titanium fails to build or emulate android application

Question

I just installed and configured Titanium Studio and it's dependencies to develop my Android applications but none of the applications even the sample app of titanium won't start in emulator.
I can see Mobile Web Preview in browser but when I try Android Emulator I get the following error in Console:

[INFO] Force including all modules...
[INFO] Compiling Javascript Resources ...
[INFO] Compiling localization files
[ERROR] error: more than one emulator
[ERROR] Exception occured while building Android project:
[ERROR] Traceback (most recent call last):
[ERROR]   File "C:\Users\Administrator\AppData\Roaming\Titanium\mobilesdk\win32\3.1.0.GA\android\builder.py", line 2528, in <module>
[ERROR]     builder.build_and_run(False, avd_id, debugger_host=debugger_host, profiler_host=profiler_host)
[ERROR]   File "C:\Users\Administrator\AppData\Roaming\Titanium\mobilesdk\win32\3.1.0.GA\android\builder.py", line 2285, in build_and_run
[ERROR]     self.push_deploy_json()
[ERROR]   File "C:\Users\Administrator\AppData\Roaming\Titanium\mobilesdk\win32\3.1.0.GA\android\builder.py", line 1954, in push_deploy_json
[ERROR]     sdcard_available = self.wait_for_sdcard()
[ERROR]   File "C:\Users\Administrator\AppData\Roaming\Titanium\mobilesdk\win32\3.1.0.GA\android\builder.py", line 1907, in wait_for_sdcard
[ERROR]     if 'SDCARD READY' in output:
[ERROR] TypeError: argument of type 'NoneType' is not iterable
[ERROR] :  Build process exited with code 1
[ERROR] :  Project failed to build after 33s 353ms

Android emulator opens up and everything looks find but my application fails to build.

I found this page and did copy the compile command and manually run it like this:

python "c:\Users\Administrator\AppData\Roaming\npm\titanium.CMD" "--no-colors" "--no-prompt" "build" "--platform" "android" "--sdk" "3.1.0.GA" "--log-level" "trace" "--target" "emulator" "--android-sdk" "C:\Users\Administrator\Desktop\adt-bundle-windows-x86_64-20130219\sdk" "--avd-id" "2" "--avd-abi" "armeabi" "--avd-skin" "HVGA" "--skip-js-minify"

but python gives me this error:

File "c:\Users\Administrator\AppData\Roaming\npm\titanium.CMD", line 1
:: Created by npm, please don't edit manually.
^
SyntaxError: invalid syntax

What am I doing wrong? Where is the roblem?

Additional Info:
I'm using latest version of Titanium Studio (build: 3.1.0.201304151600) on my Windows Server 2008 R2;
I have node.js, npm, node.acs, python installed on my system and environmental variables are correct and working;
I have Android SDK for both android-2.2 and android-17 versions.

Answer 1

After hours of searching and seeking through too many similar problems without answers, I fixed it by myself.
For everyone who is facing errors starting with [ERROR] error: more than one emulator in Titanium Studio, the problem can be because of one of the following reasons:

• You have an Android device connected to your computer
• You have an Android Simulator application like BlueStacks.

My error was because of BlueStacks running in background.