Join the 80,000 other DTN customers who enjoy the fastest, most reliable data available. There is no better value than DTN!

(Move your cursor to this area to pause scrolling)




"You are either overstaffed or people just don't have problems with your feed because customer support always answers the phone quickly." - Comment from Jay via Email
"Thanks for following up with me. You guys do a great job in tech support." - Comment from Phelps
"I'm satisfied with IQFeed. It's the most reliable and fastest quote feed I have ever used. Although I'm a resident in China, it's still very fast!" - Comment from Xiaofei
"I am keeping IQFeed, much better reliabilty than *******. I may refer a few other people in the office to switch as well." - Comment from Don
"I "bracket trade" all major news releases and I have not found one lag or glitch with DTN.IQ feed. I am very comfortable with their feed under all typical news conditions (Fed releases, employment numbers, etc)." - Comment from Public Forum
"DTN has never given me problems. It is incredibly stable. In fact I've occasionally lost the data feed from Interactive Brokers, but still been able to trade because I'm getting good data from DTN." - Comment from Leighton
"I've been using IQFeed 4 in a multi-threaded situation for the last week or two on 2600 symbols or so with 100 simultaneous daily charts, and I have had 100% responsiveness." - Comment from Scott
"If you want customer service that answers the phone, your best bet is IQFeed. I cannot stop praising them or their technical support. They are always there for you, and they are quick. I have used ****** too but the best value is IQFeed." - Comment from Public Forum
"DTN feed was the only feed that consistently matched Bloomberg feed for BID/ASK data verification work these past years......DTN feed is a must for my supply & demand based trading using Cumulative Delta" - Comment from Public Forum Post
"I will tell others who want to go into trading that DTN ProphetX is an invaluable tool, I don't think anyone can trade without it..." - Comment from Luther
Home  Search  Register  Login  Recent Posts

Information on DTN's Industries:
DTN Oil & Gas | DTN Trading | DTN Agriculture | DTN Weather
Follow DTNMarkets on Twitter
DTN.IQ/IQFeed on Twitter
DTN News and Analysis on Twitter
»Forums Index »Archive (2017 and earlier) »IQFeed Developer Support »UnsatisfiedLinkError
Author Topic: UnsatisfiedLinkError (2 messages, Page 1 of 1)

adrian
-Interested User-
Posts: 28
Joined: Oct 24, 2008


Posted: May 8, 2009 09:46 PM          Msg. 1 of 2
I've got an app working pretty well stand-alone but when I go to deploy it to my server, I get errors whenever I try to initialize the IQFeed DLL:

Caused by: java.lang.UnsatisfiedLinkError: C:\Program Files\DTN\IQFeed\iq_jni.dll: Can't find dependent libraries
at java.lang.ClassLoader$NativeLibrary.load(Native Method)
at java.lang.ClassLoader.loadLibrary0(Unknown Source)
at java.lang.ClassLoader.loadLibrary(Unknown Source)
at java.lang.Runtime.loadLibrary0(Unknown Source)
at java.lang.System.loadLibrary(Unknown Source)
at com.iqfeed.IQ_32.<clinit>(IQ_32.java:60)
... 21 more


I added the c:\Program Files\DTN\IQFeed to the java.library.path (and c:\Windows and C:\Windows\System32 for good measure) but it looks like the iq_jni.dll is trying to access some DLL which it can't find.

Can anyone tell me which other DLLs it's trying to load and where I might find them?

thanks!

DTN_Steve_S
-DTN Guru-
Posts: 2093
Joined: Nov 21, 2005


Posted: May 11, 2009 03:35 PM          Msg. 2 of 2
IQ_32.class loads iq_jni.dll from the IQFeed install directory.
iq_jni.dll loads IQ32.dll from the same directory.

The only dependancies that either IQ32.dll or iq_jni.dll have other than standard windows dlls is the Visual C++ 2005 sp1 runtime. This can be verified with dependency walker but be careful since dependecy walker will tell you that the VC++ runtime isnt' found due to the side-by-side configuration that MS uses.

The IQFeed install package installs the required VC++ runtimes as well as adds the IQFeed Installation directory to the system's Path variable.

Assuming you ran the default IQFeed install on the server and didn't manually copy any of the IQFeed files into other directories, it should "just work".

You might want to try running Dependency Walker on your server and opening the iq_jni.dll as well as the IQ32.dll to see if it detects anything missing other than the VC++ runtimes (they will be MSVC80.dll or similar naming).
 

 

Time: Mon May 6, 2024 8:48 AM CFBB v1.2.0 11 ms.
© AderSoftware 2002-2003