Error when importing an old web dynpro project

[Former Member]

Hi all,

I've have upgraded my Sap Netweaver Developer Studio from 2.0.13 to 7.0 .

Now when i try to compile my old WD project it returs the seguent errors:

1)The project was not built since its classpath is incomplete. Cannot find the class file for java.lang.Object. Fix the classpath then try rebuilding this project

2)This compilation unit indirectly references the missing type java.lang.Object (typically some required class file is referencing a type outside the classpath) PackagePointer.java Project/gen_ddic/datatypes/com/sap/function/model/types line 1

Where can i find the java.lang.Object?

thanks, Daniele

[Former Member]

I had the same problem, but not when adding external library. The problem is in the corrupted classpath, I didn't found out how that happend.

However, this solves the problem:

- go to your project properties, Java Build Path, and check whether there is a variable "JRE_LIB". If not, add it.

(value e.g. C:\j2sdk1.4.2_12\jre\lib\rt.jar )

after rebuild project and/or rebuild the DC it will be ok.

-

Radoslav

[Former Member]

Yes, this solve the problem, i do it the same way, but:

When something went wrong and you have to use some of the repair tools like "Project structure and classpath" (some times we do at beginning) the JRE_LIB were deleted, ant the error comes back.

When you dont use that, its all fine.

[former_member664606]

Hello ,

how can i rectify the classpath at Nwds tool .

[Former Member]

Hi Daniele,

Try to right click on the project and then

click repair ->Project Structure and Classpath

After that Build and deploy

Regards,

Raghu

[Former Member]

already done but didn't work

[Former Member]

ok found thanks to all

[Former Member]

Hi Dabiele,

I am also doing the same. I am getting this error:

"The project was not built due to classpath errors (incomplete or involved in cycle)."

Can you please tell me how you resolved it.

Thanks,

Raj.

[Former Member]

I am having the same problem. Please explain how I can fix it.....

[Former Member]

The same problem here. Please explain how to fix...

[Former Member]

As said right click on the component and check for the options repairs or change class path structure.

Doing this will solve the problem.

If you still face the problem after this.

Close your NWDS application and open it again.

Regards,

Nagaraju Donikena

[Former Member]

Hi all,

maybe is too late.. but I wish to share my humble experience with you.

I encounter in a similar problem...

When I'm working with Web Dynpro (Messagge Pool) suddenly the NWDS seems to be crazy and give me the error "this compilation unit indirectly references the missing type java.lang.Object "

I read many post, this one too, but still got the problem.

Compare the current WD project with another one I found that my project didn't have rt.jar ibrary in its library list.

So I add in WD project - properties - Java build Path - Libraries the rt.jar library.

In my case it was in C:\j2sdk_dir\jre\lib\rt.jar.

So I build project and the problem desappear.

I hope this experience will be usefull.

Cristian