Look at the following lines:

The address you specified is garbled: [https:api.bitcoin.cz].
As a result, DiabloMiner thinks you omitted the protocol part (http://) and appends it in front of your the hostname resulting in something as nonsensical as http://[https:api.bitcoin.cz]:8332/

You are not supposed to use square brackets when typing in the hostname, just enter http://api.bitcoin.cz
No brackets, no quotation marks.
The same goes for port number; it's 8332.


Please note that you can also provide the address and logon credentials passing them as parameters to DiabloMiner:
-u as in user,   -p as in password,   -o as in pool,   -r as in port
This is usually the preferred way of launching any miner.

Opened the App and this is what follows.



Last login: Wed Feb 15 17:52:53 on console
/Applications/DiabloMiner.app/Contents/MacOS/DiabloMiner-exe ; exit;
justin-xxx-macbook-pro:~ Justin$ /Applications/DiabloMiner.app/Contents/MacOS/DiabloMiner-exe ; exit;


DiabloMiner (GPU) menu
----------------------
1) Set up wizard / configuration
2) How to support article (opens in Web browser)
3) Start mining on login is OFF
4) Check for updates (opens in Web browser)

   
Make a selection, or press [Enter] or wait 15 sec to run the miner: 1


DiabloMiner set up wizard
GPU based Bitcoin miner.
-------------------------
Server host name or IP address [[https:api.bitcoin.cz]]:
Server port number [8332]:
Miner username [justin.xxx]:
Miner password: xxx

Start mining automatically on log-in? [yes/NO]: n


Starting DiabloMiner (GPU)...
-----------------------------
Exception in thread "DiabloMiner GetWorkAsync for [https:api.bitcoin.cz]" java.lang.IllegalArgumentException: URI can't be null.
   at sun.net.spi.DefaultProxySelector.select(DefaultProxySelector.java:116)
   at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:906)
   at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:836)
   at sun.net.www.protocol.http.HttpURLConnection.getOutputStream(HttpURLConnection.java:1014)
   at com.diablominer.DiabloMiner.DiabloMiner$NetworkState.doJSONRPC(DiabloMiner.java:699)
   at com.diablominer.DiabloMiner.DiabloMiner$NetworkState$GetWorkAsync.run(DiabloMiner.java:953)
   at java.lang.Thread.run(Thread.java:680)
[2/15/12 5:53:55 PM] Started                                                 
[2/15/12 5:53:55 PM] Connecting to: http://[https:api.bitcoin.cz]:8332/     
[2/15/12 5:53:56 PM] Using Apple OpenCL 1.0 (Dec 23 2010 17:30:26)           
[2/15/12 5:53:58 PM] Added GeForce 8600M GT (#1) (4 CU, local work size of 192)
mhash: 0.0/0.0 | accept: 0 | reject: 0 | hw error: 0

Paste the whole command line; all the arguments you started DiabloMiner with.

This is the error I've been getting with DiabloMiner. I'm new to the boards and am having trouble finding an answer. Thanks in advance for any help.


Starting DiabloMiner (GPU)...
-----------------------------
Exception in thread "DiabloMiner GetWorkAsync for [http://api2.bitcoin.cz]" java.lang.IllegalArgumentException: URI can't be null.
   at sun.net.spi.DefaultProxySelector.select(DefaultProxySelector.java:116)
   at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:906)
   at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:836)
   at sun.net.www.protocol.http.HttpURLConnection.getOutputStream(HttpURLConnection.java:1014)
   at com.diablominer.DiabloMiner.DiabloMiner$NetworkState.doJSONRPC(DiabloMiner.java:699)
   at com.diablominer.DiabloMiner.DiabloMiner$NetworkState$GetWorkAsync.run(DiabloMiner.java:953)
   at java.lang.Thread.run(Thread.java:680)
[2/15/12 3:35:55 AM] Started                                                 
[2/15/12 3:35:55 AM] Connecting to: http://[http://api2.bitcoin.cz]:8332/   
[2/15/12 3:35:55 AM] Using Apple OpenCL 1.0 (Dec 23 2010 17:30:26)           
[2/15/12 3:35:56 AM] Added GeForce 8600M GT (#1) (4 CU, local work size of 192)
mhash: 0.0/0.0 | accept: 0 | reject: 0 | hw error: 0