Development Component

Hi
I am trying to create a new DC in NWDS but I keep on getting this message:
Invalid project description.
What can be done to fix this error?
regards
yuval

Hi,
When you create a new projects, you cannot use a project location that is already used by another project in the workbench. If you choose a project location that is used by another project, the wizard displays an "Invalid project description" error dialog or message. If after you receive this message you then select a valid project location by clicking the Browse button, the project creation will still not finish. The workaround is to click Cancel and reopen the project creation wizard.
Regards,
Satyajit.

Similar Messages

Error while creating the development component project

Hello
i tried to create development component project through NWDS which is expected to be used as CallableObject but it gave following exception
Plugin name: Web Dynpro Archive Builder
Plugin ID: com.sap.ide.webdynpro.archivebuilder
Class: com.sap.ide.webdynpro.archivebuilder.project.WebDynproDevelopmentComponentProjectWizard
Method: createProject(String, IPath, IProgressMonitor)
Message: Invalid project description.
Exception: org.eclipse.core.internal.resources.ResourceException: Invalid project description in plugin name
I am using NWDS 7 version and using J2EE engine of NetWeaver 2004s server.
Thanks in advance.
Regards
Rajeev

Hi
sorry for that
see the below link ,it will be helpful for u.
Re: development component
Regards
Hazrath

Web service in Web Dynpro development Component

Hi All,
I have created a web service in SAP GUI and I have saved the WSDL file on my local PC.
Now when I create a web service model in a simple web dynpro project it works perfectly.
But when I do the same in a web dynpro development component; as soon as the web service model instance is associated with the activity in the DTR my application get hanged. I have to quit my NWDS. When I reopen NWDS my application shows following errors:
Kind Status Priority Description Resource In Folder Location
Error XMLTokenWriter cannot be resolved (or is not a valid type) for the argument writer of the method serialize Char1.java JD2_ADBESP6_Dtestwebservicesap.com/src/packages/com/adobe/mo_web1/proxies/types line 57
Kind Status Priority Description Resource In Folder Location
Error typeRegistry cannot be resolved or is not a field Z_WS_GETEMPINFO_FULLSoapBindingStub.java JD2_ADBESP6_Dtestwebservicesap.com/src/packages/com/adobe/mo_web1/proxies line 29
Kind Status Priority Description Resource In Folder Location
Error transportBinding cannot be resolved or is not a field Z_WS_GETEMPINFO_FULLSoapBindingStub.java JD2_ADBESP6_Dtestwebservicesap.com/src/packages/com/adobe/mo_web1/proxies line 22
Kind Status Priority Description Resource In Folder Location
Error SOAPSerializationContext cannot be resolved (or is not a valid type) for the argument context of the method serialize Char1.java JD2_ADBESP6_Dtestwebservicesap.com/src/packages/com/adobe/mo_web1/proxies/types line 50
Kind Status Priority Description Resource In Folder Location
Error SOAPDeserializationContext cannot be resolved (or is not a valid type) for the argument context of the method deserialize Char1.java JD2_ADBESP6_Dtestwebservicesap.com/src/packages/com/adobe/mo_web1/proxies/types line 26
Regards
sid

Hi Sidharth,
Which version of NWDS you are using. I was facing the same problem with SP16 sometime back.
I did find a workaround to do that. See, whenever you will create the WS Model in Web Dynpro DC, it will ask you to add some file in DTR..right!!........ do one thing press "Cancel" or "No" there. Then studio will ask one more time to add the files, in different dialog box though. Add the files from the second dialog box rather than the first one.
Regards,
Mausam

Error while building development component project

Hi all,
I have created one webdynpro application in which i am importing javabean model using jars in my build path.I am able to execute that application successfully but when i try to import that application in a new development component project, i am getting errors in my bean class (IPrivateBeanclassname) for some getter setter methods saying the method is not defined....
I have put the same jar in its build path also.
Can somebody please help...
Thanks,
Mayuri

Hi,
I am importing the application as follows:
1) I have developed a web dynpro project. This project has a jar file for getting the java classes. The web dynpro application works fine.
2) I imported this application into a Development Component Project. Here it fails to recognize the jar file that is required. Even if I put the jar file in its build path, while building, the jar file gets removed.It says java build path errors.
Please help!
Thanks,
Mayuri

BPM process and BRM rules process in same development component in NWDS

Hi All,
Is it possible to create the BPM process and BRM rules process in the same development component in NWDS?
I tried but whenever we create it,say,first ly for BPM,that is File-New-Project-Development Component-Process Composer
While once this development component is created I try to create rules composer in the same composer by right clicking on local development component as well as process composer but ther is no option of creating /calling rules composer/rules modeling.
Can you please guide me creating both BPM process and BRM rules composer/rules modeling in the same development component if its possible?
Thanks in advance

Open your project explorer and expand the BPM project you have created. Locate a folder named "Rules" in the Project Tree. Right-click on the Rules folder and select 'Create new rule'. You can model your rules such as rule-scripts here and use it in the BPM.
Note: These rules cannot be used outside the BPM Project.

Using JPA Entity-Objects defined in other EJB-Development Component

Hello Community,
I'm working on a Java-Application on NW CE 7.1, using JEE5 Beans in the Business-Logic-Layer and WebDynpro/Java in the UI-Layer.
I designed a Bean for working with data, stored in a database-table of the system-database.
For that addtionally i created a class, representing the Entity-Object, in the same Development-Component of Type EJB 3.0.
It looks like this:
@NamedQueries ({
 @NamedQuery (name="findAllSdCust", query="SELECT c from SdCust c ORDER BY c.kdnr"),
 @NamedQuery (name="findSdCustByKdnr", query="SELECT c from SdCust c WHERE c.kdnr = :kdnr"),
 @NamedQuery (name="findSdCustByIlnnr", query="SELECT c from SdCust c WHERE c.ilnnr = :ilnnr")
@Entity
@Table(name="ZKALL_SD_CUST")
public class SdCust implements Serializable {
 @Id
 @TableGenerator (name="idGenerator", table="ZKALL_ID_GEN", pkColumnName="GEN_KEY", valueColumnName="GEN_VALUE", initialValue=100)
 @GeneratedValue (strategy=GenerationType.TABLE, generator="idGenerator")
 private long id;
 private String name;
 private String lname;
 private String kdnr;
 private String ilnnr;
 private long connid;
 private long cnt;
 @Version
 private long version;
 Constructor, Getter and Setter methods follow here
The corresponding bean looks like this
@Stateless(name="SdCustBean")
public class SdCustBean implements SdCustLocal {
 @PersistenceContext (unitName="xyz")
 private EntityManager em;
 public SdCust getSdCustByKdnr (String kdnr)
 SdCust result = new SdCust();
 // List<Manufacturer> resultList = new ArrayList<Manufacturer>();
 Query myQuery = em.createNamedQuery("findSdCustByKdnr");
 myQuery.setParameter("kdnr", kdnr);
 result = (SdCust) myQuery.getSingleResult();
 return result;
 public void setEM (EntityManager iem)
 em = iem;
 // other methods .....
After that i created a new Development-Component of Enterprise Application-Type and added above DC to this EAR-DC. I also supplied the nessecary descriptor-files/Enries in EJB-DC and EAR-DC.
When now using this bean from WebDynpro with the Web-Dypro EJB-Model-Import everything works fine.
The bean returns the desired object(s).
But now i created a new DC of type EBJ 3.0
This DC contains a Message Driven Bean. That MDB is a Job-Bean which i want to schedule. That Bean uses JRA to connect to an SAP-Abap-System to read some Data and should use JPA to insert/upate/delete the read data in the Database. This should work as a simple replication for my application.
I assigned that EJB-DC containing the MDB to a new EAR-DC together with job-definition-xml and the neccessary entries in deployment-descriptors.
After deploying i see the corresponding job-defition in the NW scheduler using the administrator-views.
I'm also able to schedule the job and it executes fine. Connecting to SAP-Abap System also works fine using JRA.
But JPA does not work!!!!!
I created an dependency from my EAR-DC containing the Job EJB-DC and to the EJB-DC containing the Entity-Class.
I tried three diferent things to get i running, but all of them failed.
1.)
The part looks like:
public class MasterDataReplicateJobBean extends MDBJobImplementation implements MessageListener
@EJB SdCustBean mybean;
 public void onJob(JobContext ctx) throws Exception {
 SdCust sdCust = mybean.getSdCustByKdnr (mykdnr);
Compiles fine. But this fails because the Data is stored in the system-database. The exception says, that i have to use a datasource which supports 2-Phase commit. I know, that i could possibly solve this problem by annotation the Method getSdCustByKdnr with the Annotation for the Transaction-Manager to use REQUIRES_NEW Transaction. But i dont want to generally annotate my methods this way.
2.)
This part looks like this
public class MasterDataReplicateJobBean extends MDBJobImplementation implements MessageListener
@PersistenceContext (unitName="xyz")
private EntityManager em;
 public void onJob(JobContext ctx) throws Exception {
 SdCust cust = new SdCust();
 Query myQuery = em.createQuery("SELECT c from SdCust c WHERE c.kdnr = :kdnr");
 myQuery.setParameter("kdnr", dbkdnr);
 cust = (SdCust) myQuery.getSingleResult();
This also results in a runtime-exception because the entity-Manager cant resolve SdCust from the Query as an Object. The Exception is:
java.lang.IllegalArgumentException: line 1: Abstract Schema Type 'SdCust' doesn't exist
SELECT c from SdCust c WHERE c.kdnr = :kdnr
3.) and last try so far:
public class MasterDataReplicateJobBean extends MDBJobImplementation implements MessageListener
@PersistenceContext (unitName="xyz")
private EntityManager em;
 public void onJob(JobContext ctx) throws Exception {
 SdCustBean custBean = new SdCustBean();
 custBean.setEM(em);
 SdCust cust = custBean.getSdCustByKdnr(kdnr);
In this example i use the Bean from the beginning not as a bean itself but as a normal class. that class has an addtional Method setEM to set the Entity-Manager (which is injected when using the class as a bean)
In that way i got the exception, that the named Query "findSdCustByKdnr" cannot be found by the entity-manager.
It seems to me, that i can access the class, but that all annotations belonging to JPA for that class are not recognized.
Does anybody can give me a hint to solve this problem? Did i forgot something important?
best regards
matthias hayk
Edited by: Matthias Hayk on Feb 5, 2009 9:38 AM

I was already on wright trace.
My class "SdCust" was not recognized by the Entity-Manager as an Entity-Class.
This relies on the storage of the entity-class and where the Entity-Manager looks for entity-classes.
By default it seems to look for all classes in the same jar file. thats the reason why everything works fine when the using bean and the entity-class are in the same project.
In my last case, the using bean is in another development-component and so also in anohter jar file. in this case the entity-manager must be told where to find entity-classes.
this is done in the persistence.xml file.
i added the line
<jar-file>xxx.yyy.com~mdata_beans.jar</jar-file>
underneath the <persistence-unit>-tag.
This works.
regards
Matthias Hayk

Webdynpro Development Component Callable Object Escalation

Hi,
In gp sequential block workflow using webdynpro development component callable objects When the initiator intiates a workflow ,it is assigned to the first approver.Now if the approver does not take any action within 2 days i want to escalate the task to the second approver.How can i do this escalation?
There is a standard parameter call due date...in action.How can I set this value dynamically from my application..
During escalation , the next approver has to be taken by executing an rfc in the background
Please help....
Thanks,
Shamila

Hi,
You can define a CAF Core application service (implemented in the CAF Core layer) or a background CO (implemented by a J2EE class interface) which can call a RFC to get the next approver and return the next approver's user id as an output parameter. You can use dynamic user assignment in the next action (approval), by selecting the processor as "Filled From Context Parameter" (at the Roles tab in block level) and select the user id output parameter of the background CO/CAF app service CO.
You can get more details on different types of CO at the CAF Tutorial Center @SDN
Thanks,
Dipankar

Importing Java Bean Model in Webdynpro Development Component

Hi All,
Is there any simple tutorial, example to import java bean model in webdynpro development component.
I am using NWDS 7.0 SP14 and WAS 7.0.
it really helps if you can provide simple EJB as a development component with details how to create a public part and using this bean as java bean model in Webdynpro development component.
what are the steps to be followed with precautions
Thanks in Advance,
Murali

Hi,
[Using the Java Bean Model in Web Dynpro|https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/4072c0d0-c21e-2b10-ab84-e2c183d355de]
[Using EJBs in Web Dynpro|https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/1f5f3366-0401-0010-d6b0-e85a49e93a5c]
you will get more if you search in the forum.
more help on EJB's
Re: Help needed in EJB
http://help.sap.com/saphelp_nw70/helpdata/EN/19/f9bc3d8af79633e10000000a11405a/frameset.htm
https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/70929198-0d36-2b10-04b8-84d90fa3df9c
https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/1f5f3366-0401-0010-d6b0-e85a49e93a5c
PradeeP

Webdynpro Development Component project error

Hi All,
I am trying to use a DC1(Development Component) in another DC2 component, but when i am trying to deploy and run the application of DC2, which use the DC1 component. It is giving error like below.
java.lang.UnsupportedClassVersionError: com/hp/dc1/wdp/InternalDc1Comp1 (Unsupported major.minor version 49.0)
Can anybody help me in solve out this.
Thanks in advance,
Ravi

Hi Ravi,
This problem is not with the DC you are creating. This exception can occur when the source is compiled on one version of JDK that is not supported by JDK attemting to run it. In your case your DC was built targeting only JDK 1.5, but the Portal server JDK might be 1.4 or different then JDK 1.5.
You can check the JDK version of the server and if its other than JDK 1.5 then installed the same version on your machine to compile the code.
Hope this will resolve your problem.
Regards,
Nikhil

Development Component libraries not being recognized in Portal

Hi everyone,
I've been having a problem regarding a Background Execution Callable Object.
At first, when I added External Libraries to the Java Build Path of the Development Component, these libraries would dissappear upon build time. The solution to this was to create another DC type External Library and add the libraries there. Afterwards, these libraries would form part the DC's Public Part and these would be incorporated in the Used DC's section of the first component (marking Design Time and Build Time when it was added). This enabled me to build and deploy the DC successfully.
Once inside the Portal, I tried creating a new Background Execution Callable Object and once I entered the class' name, I would get the following error message:
Cannot check if class exists: Unable to load the required classes.
I had already created a CO pointing to this reference and when I test it, I get the following error message:
java.lang.NoClassDefFoundError: com/cts/speed/exception/DatabaseException
This leads me to the conclusion that the external libraries used aren't being recognized by the portal at runtime.
I would appreciate any suggestions as to how I can solve this issue.
Thank you very much,
Luis

Successful compilation or building in the eclipse/NWDS does not mean that it can be successfully deployed on the portal. If the Java build path has all the required jars, any project compiles and builts fine but that build path is not transported to the portal( see inside any par file, there won't be any .classpath and .project files. They are local only files).
========
Add all your third party jar files to the component in this path( ..\dist\PORTAL-INF\lib). There is no need to add mail.jar as it's already available in sap j2ee engine. So add these lines to the portalapp.xml. (as told by jagdeep)
<application-config>
<property name="PrivateSharingReference" value="SAPJ2EE::library:mail"/>
</application-config>
Regs,
Bobby

Create Development Component Failed

Hi Experts,
I am in the process of creating a Track for Development.
I have followed the below SAP help for the same.
[How to Perform Development with a Track|http://help.sap.com/saphelp_nw04s/helpdata/en/d2/4551421705be30e10000000a155106/frameset.htm]
I have completed all the steps as mentioned.
But...
When I try to create a Development Component in NWDS,
I am getting the error:
Syntax of 'test.com/test' is not valid:Invalid name; on this server no names of category SAP_DevelopmentComponentName are allowed at all.
Any Help would be highly appreciated.
Regards,
Karthick Eswaran.

Ramganesan,
If I give any Name it is giving the exception with that name.
And there is nothing in 'Name' Drop Down List.
Can you tell me why the Name Drop Down is Disabled?
Thank you.
Regards,
Karthick Eswaran

Importing Development Component - Webdynpro and Guided Procedures

Hi All,
I created a development component project of type "Webdynpro". I created callable Object in guided procedures and the Process is working fine. I want to import the same project into another Nwds (another workspace).
I tried the following steps.
1. File - import - Multiple Existing project into workspace.
2. Imported the DC.
I have already added all the Gp jarfiles. But after importing, and rebuilding the project, it gives me only webdynpro and components,views.. It is not showing me as a normal webdynpro project. It is not showing me the GP Api's, the "USED DC's". which i created in the other project.
When i am creating a new project, it is working fine.Can anyone please help me in resolving this issue? How can i import a DC (gp) into webdynpro?
Thanx and Regards,
Divya

Hi,
Take a look at this [thread|/thread/119966 [original link is broken];
Dick.

Can not change vendor when creating a new Development Component in NWDS

Dear friends,
Im trying to create a new Development Component in NWDS. Our NWDS is connected to NWDI and we are using CM Services option of NWDI.
Before I could create a DC and change the vendor but now I cant change it anymore. Now, the vendor is by default sap.com and we cant change it and it seems that we also have to put our project in a separate directory. home/ directory or other directories in the list.
See below screen shots...
If I make a new DC than we see it like this: home/bpm_test [sap.com].
If I make a new DC in my LocalDevelopment I can change the vendor and I dont have to choose a home directory.
Do you have any idea how to change that?
Any help would be greatly appreciated.
Thank you in advance,

HI,
it seems that the vendor is defined in the NWDI track. That's why you can't change it.
regards,
Vasils

Development component for UME usage in WebDynpro

Hi,
We develop several WebDynpros using the UserMappingService. Those WebDynpros are checked into the NWDI. Local builds are fine since we copied the relevant jar files into the project and referenced them in the classpath.
Builds in the NWDI fail because there the jar files for UME (com.sap.portal.usermapping.jar, com.sap.portal.usermappingapi.jar) are missing. Is there a development component we can reference so that the build infrastructure is able to find the jar files when trying to build the project?
Or am i supposed to put those jars into a library development component? This would us make prone to changes in the API since we keep our servers and developer machines at the same SPS.
kind regards
Dirk
PS: we use EP 6 SPS 18 and NWDS 2.0.18 for development and production.

Hi,
If u r using DC for ur development then the jar file should not be added in the build path because it will be removed at build time.
For adding ur libraries u should be using an external library component. Expose this library file as public part. This is only a buildable component.
For deploying this library in the server u should create a new J2EE library component and in this used DC add the exposed public part. Deploy this application.
Finally in the Main component used DC add the External library component and in the references of ur project give the j2ee library component.
For reference see valery's blog
<a href="/people/valery.silaev/blog/2005/09/14/a-bit-of-impractical-scripting-for-web-dynpro External Jars in DC</a>
- Hope it helps,
Nagarajan.

Development Component Dependency in CM Service

Dear All..
We are using CM Service to tr transport Web Dynpro Java object into our target system.
But we are suffering from the DC(Development Component) Dependency.
Let me explain the situaiton in the below.
<The First>
Like the ERP ABAP System, we can develop and change DC which is referenced by another DC.
One developer developed A DC and another developer developed B DC.
B DC is referenced by A DC in Model view in the NWDS(Netweaver Development Studio).
In this situation if A DC should be transported to our production system,
we have to check-in and activate and release activity.
By releasing A DC,the B DC is packed in a DIP(Development Infrastructure Package) file together because of
dependency between A DC and B DC.
Is it right?
If it is right,what should I do if the B DC have a some problem and if I don't want to transport it.
Of course If the developer which develops B DC does not activate after check-In,
the B DC which have a problem in that time is not packed in a DIP file.
But the developer which devlops B DC also have to test and activate to transport into our QAS system before deploying
into our production system.
This is the our first problem.
<The Second>
So far as I know the deployment process is composed of like this.
Stop Applicaiton -> lock application -> deploy -> Start Application.
Is it right?
I found out that the time for locking application depends on the applicaiton dependency.
For example If we deploy some application having much dependency with other application,the system first try to stop whole
related applicaiton and then deploy and start application again.
I think this kind of situation is natural.
Unfortunately our some application is referenced by all applicaiton(For example the application which is used by other applicaiton commonly).
So If we change this common application and deploy,our whole applicaiton is stopped and started again.
In this situation are there any useful deployment method or development method(minimization of application dependency) to prevent
customer affection when we deploy web dynpro application?
Regards...

Thanks for your reply.
DIP is a unit which we can transport our DC(Development Component) into our production system using CTS+.
You can find more detail information in the document.
"How To... Configure CM Services in SAP NetWeaver 7.3 and up"
Also regarding second question,as I said already it is natual but I'm just searching for the best reference to deploy webdyn object which have a many dependency.
For example,manually stopping before we deploy.
Regards...

Development Component not visible in the Consolidation Compartment in CBS

Hi Experts,
We have created a new development component on the track for which we
have created an DTR activity. After we checked in, activated & released
the activity successfully, we went to the consolidation tab in CMS and
imported the activity. We could successfully imported the activity into
consolidation system and got the message import finished. But when I checked
in the Consolidation compartment, I could not found out my newly
created Development component. I feel that the activities are not going there.
I also tried restarting the NWDI server but still no luck.
Kindly assist as without solving this issue we cannot assemble our
components and cannot move them to Quality environment.
Also, kindly assist how can we transport the entire SCA (where we have done the custom development) from development
to Consolidation for the same state?
Currently, we have lesser number of DCs in the SCA of my cons environment than my dev environment, so how can I exactly have the same state of custom developed SCA in my cons environment?
Is there any provision of system restore so that we can overcome the above issue or any other means by which we can move the entire SCA from my dev environment to cons environment.
Please suggest as this is affecting our go live activities.
Thanks & Regards,
Anurag

Hi,
when you have imported into cons and it said finished succesfully, then clicking on the button "Details..." can you confirm that all the 3 phases were succesful (dtr import, cbs make and deployment) ?
Do you have any pending activations? You can check it in the CBS webui -- page "Activities".
Can you see any requests in the TCS deployer as described by Pramod ? (you need to look for numbers in square brackets [ ]. If there are any it means that those requests are still being deployed. If this is the case and the requests are not disappearing from the TCS Deployer, then doublecheck if the RTS settings for CONS are ok. Here a hint for that: http://wiki.sdn.sap.com/wiki/display/TechTSG/%28NWDI%29%28CMS%29Q0002).
Eventually if all this is fine, can you please trigger an Initialize Compartment (you do this in CBS webui -- select your CONS compartment).
I hope this helps.
Thanks and Regards,
Ervin

Development Component

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