Error: cannot be resolved to type

Hi Guys,
I downloaded an application to launch an RTP client/server but I cannot compile it, yhe error message is below:
vmplanet@vmplanet-desktop:~/JavaRTP/playerv1$ make
javac Client.java
1. ERROR in Client.java (at line 306)
     RTPpacket rtp_packet = new RTPpacket(rcvdp.getData(), rcvdp.getLength());
     ^^^^^^^^^
RTPpacket cannot be resolved to a type
2. ERROR in Client.java (at line 306)
     RTPpacket rtp_packet = new RTPpacket(rcvdp.getData(), rcvdp.getLength());
     ^^^^^^^^^
RTPpacket cannot be resolved to a type
2 problems (2 errors)make: *** [Client.class] Error 255
Can anyone help me with this error.
Thanks alot..

Thanks for the response jverd, I got it from "http://www.mobilelife.eu/OSU/classes/multimedia-networking-streaming.php" and the instructions just say to type make and it will compile all, I then tried to compile all of the files separately but that did not work either. On the website they say that it will work under RedHat and Solaris but I am using Ubuntu, this shouldn't make a difference with Java should it?
Also in the tar file I downloaded there is an RTPpacket.java file, I tried to compile it first but that did not help..
Thanks

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Hi,
What you need to do update your Java build path fr the project in your Eclipse project.
Project -> Properties then find Java Build Path.
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If you want to use the JC 2.2.1 CAP file converter, you may also want to ensure that the Eclipse compiler is set to compile as Java 1.3 in the Java Compiler section of the project properties.
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http://img257.imageshack.us/img257/3967/screenshotjavaeejspbook.png
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I am getting the same error but while creating a Web Service.
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 org.apache cannot be resolved
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 org.apache cannot be resolved to a type
 org.apache cannot be resolved to a type
 org.apache cannot be resolved to a type
 org.apache cannot be resolved to a type
 org.apache cannot be resolved to a type
 org.apache cannot be resolved
 org.apache cannot be resolved
 org.apache cannot be resolved to a type
 org.apache cannot be resolved to a type
 org.apache cannot be resolved
 org.apache cannot be resolved
 org.apache cannot be resolved
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 org.apache cannot be resolved
 org.apache cannot be resolved to a type
 org.apache cannot be resolved to a type
 org.apache cannot be resolved
 org.apache cannot be resolved
 org.apache cannot be resolved to a type
 org.apache cannot be resolved to a type
 org.apache cannot be resolved
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 org.apache cannot be resolved
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 org.apache cannot be resolved
 org.apache cannot be resolved to a type
 org.apache cannot be resolved to a type
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 org.apache cannot be resolved
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Hello! I try to get JavaMail working, but all in vain.
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Edited by: Pavel_Z on May 7, 2009 4:55 PM

Now I am confident that the problem is with library including, as the same thing happens with other libraries.
I found that such a warning appears every time:
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>
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%>
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%>
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Edited by: blinkaj on Apr 18, 2010 2:15 AM

Thanks elOpalo, even though eclipse is still showing the error, things are running fine after I rectified my typing mistake about the prinln. :)

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Hi All,
I am dynamically building up a context node called PoList which is used to hold the contents of a table.
My BAPI is called and a routine transfers the contents of the BAPI context node across into the POList context node. This is rendered correctly on the screen. There is a routine which filters the results based on a vendor. The code works fine when some records are found but when no records are found, I get the error "Context Path POLIST.EBELN Cannot Be Resolved (Last Node Is Empty) ".
The cardinality of the PoList node is 0..N. This should mean that 0 records is valid.
The ABAP which fills the context is pasted below :
data:
 Node_Z_Bapi_Po_Combined type ref to If_Wd_Context_Node,
 Node_Changing_Po type ref to If_Wd_Context_Node,
 Node_T_Header type ref to If_Wd_Context_Node,
 Elem_T_Header type ref to If_Wd_Context_Element,
 itab_C_T_Header type If_Componentcontroller=>Elements_Polist,
 stru_C_T_Header like line of itab_C_T_Header,
 Stru_T_Header type If_Componentcontroller=>Element_T_Header .
data:
 Node_Polist type ref to If_Wd_Context_Node,
 Elem_Polist type ref to If_Wd_Context_Element,
 Stru_Polist type If_Componentcontroller=>Element_Polist.
data:
lri_Element type ref to if_Wd_Context_Element,
loa_Elements type Wdr_Context_Element_Set.
navigate from <CONTEXT> to <Z_BAPI_PO_COMBINED> via lead selection
Node_Z_Bapi_Po_Combined = wd_Context->get_Child_Node( Name = IF_COMPONENTCONTROLLER=>wdctx_Z_Bapi_Po_Combined ).
navigate from <Z_BAPI_PO_COMBINED> to <CHANGING_PO> via lead selection
Node_Changing_Po = Node_Z_Bapi_Po_Combined->get_Child_Node( Name = IF_COMPONENTCONTROLLER=>wdctx_Changing_Po ).
navigate from <CHANGING_PO> to <T_HEADER> via lead selection
Node_T_Header = Node_Changing_Po->get_Child_Node( Name = IF_COMPONENTCONTROLLER=>wdctx_T_Header ).
navigate from <CONTEXT> to <POLIST> via lead selection
Node_Polist = wd_Context->get_Child_Node( Name = IF_COMPONENTCONTROLLER=>wdctx_Polist ).
loa_Elements = node_T_Header->get_Elements( ).
loop at loa_Elements[] into lri_Element.
 lri_Element->get_Static_Attributes(
 importing Static_Attributes = stru_C_T_Header ).
Get the vendor number
 if i_lifnr is initial.
 insert stru_C_T_Header into table itab_C_T_Header[].
 elseif i_lifnr = stru_c_t_header-lifnr.
 insert stru_C_T_Header into table itab_C_T_Header[].
 endif.
endloop.
data : W_LINES TYPE I.
describe table itab_c_t_header lines w_lines.
if w_lines eq 0.
 node_Polist->set_lead_selection_index( 0 ).
 CALL METHOD NODE_POLIST->INVALIDATE.
else.
 node_Polist->bind_Table( itab_C_T_Header ).
 clear itab_C_T_Header[].
endif.
I would have though that invalidating the node would blank the context node and mean that the table is empty but instead I get an error.
Please help.
Richard

Hi Richard,
The problem here is that some UI element tries to bind against a node where the parent node is empty. You have to make sure that the last but one node has at least 1 element, otherwise you should hide the UI element (visibility = NONE).
If the lead selection were empty, the corresponding error message would tell you this, but it explicitely says: "Last Node is Empty", and you can trust it.
One possibility to have at least one element in the node is to change the cardinality to 1..n. If you have a supply function for this node, you have to make sure that there is at least 1 element (bind empty structure to the node), otherwise the framework creates the first element for you.
Ciao, Regina

Error: cannot be resolved to type

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