# Sub-bundles: -buildpath vs. -classpath
**URL:** https://bnd.discourse.group/t/sub-bundles-buildpath-vs-classpath/482
**Category:** GENERAL
**Created:** [October 24, 2024, 11:36am UTC](https://bnd.discourse.group/t/sub-bundles-buildpath-vs-classpath/482 "2024-10-24T11:36:09Z")
**Posts on this page:** 2
**Page:** 1
### Author:  [@chrisrueger](https://bnd.discourse.group/u/chrisrueger)
#### Post date: [October 24, 2024, 11:36am UTC](https://bnd.discourse.group/t/sub-bundles-buildpath-vs-classpath/482/1 "2024-10-24T11:36:09Z")
Hi Peter @pkriens , I am trying to following your hint to create a single wrapper bundle in my workspace using sub-bundles for each lib I want to wrap. (based on [this](https://bnd.discourse.group/t/generating-multiple-bundles-per-project/84))
I have the feeling `-buildpath` in a sub-bundle works different than in a normal bnd.bnd. In sub-bundle I had to use `-classpath` instead, to get same result.
Any pointers to why that is?
**Here more details:**
Before I had a separate wrapper bundle with a `bnd.bnd` and a `-buildpath` instruction:
```auto
-buildpath: \
org.apache.poi:poi;version=latest,\
```
This basically extracted the dependency in my wrapper jar.
**But** in a sub-bundle `mysubbundle.bnd` the `-buildpath` seems to be ignored.
I could only get the same result as before when I use `-classpath` like this:
```auto
-classpath: \
${repo;org.apache.poi:poi;latest},\
```
my parent bnd.bnd is simple like this:
```auto
-resourceonly: true
-sub: *.bnd
```
---
### Author:  [@pkriens](https://bnd.discourse.group/u/pkriens)
#### Post date: [October 28, 2024, 11:25am UTC](https://bnd.discourse.group/t/sub-bundles-buildpath-vs-classpath/482/2 "2024-10-28T11:25:05Z")
The -buildpath is a _project_ instruction. This means that it **must** be placed in the bnd.bnd file, not in the sub bnd file. A project can only have a single -buildpath.