diff --git a/org.knime.ext.py4j/.project b/org.knime.ext.py4j/.project
index ffbb65439..2354a0a4f 100644
--- a/org.knime.ext.py4j/.project
+++ b/org.knime.ext.py4j/.project
@@ -20,11 +20,22 @@
 			<arguments>
 			</arguments>
 		</buildCommand>
+		<buildCommand>
+			<name>org.eclipse.pde.ManifestBuilder</name>
+			<arguments>
+			</arguments>
+		</buildCommand>
+		<buildCommand>
+			<name>org.eclipse.pde.SchemaBuilder</name>
+			<arguments>
+			</arguments>
+		</buildCommand>
 	</buildSpec>
 	<natures>
 		<nature>org.eclipse.m2e.core.maven2Nature</nature>
 		<nature>org.eclipse.jdt.core.javanature</nature>
 		<nature>org.python.pydev.pythonNature</nature>
+		<nature>org.eclipse.pde.PluginNature</nature>
 	</natures>
 	<filteredResources>
 		<filter>
diff --git a/org.knime.python3.arrow.types/.project b/org.knime.python3.arrow.types/.project
index 93c174598..e2eab6645 100644
--- a/org.knime.python3.arrow.types/.project
+++ b/org.knime.python3.arrow.types/.project
@@ -15,10 +15,21 @@
 			<arguments>
 			</arguments>
 		</buildCommand>
+		<buildCommand>
+			<name>org.eclipse.pde.ManifestBuilder</name>
+			<arguments>
+			</arguments>
+		</buildCommand>
+		<buildCommand>
+			<name>org.eclipse.pde.SchemaBuilder</name>
+			<arguments>
+			</arguments>
+		</buildCommand>
 	</buildSpec>
 	<natures>
 		<nature>org.eclipse.m2e.core.maven2Nature</nature>
 		<nature>org.eclipse.jdt.core.javanature</nature>
+		<nature>org.eclipse.pde.PluginNature</nature>
 	</natures>
 	<filteredResources>
 		<filter>
diff --git a/org.knime.python3.arrow/.project b/org.knime.python3.arrow/.project
index fd6d546e7..8ce841db9 100644
--- a/org.knime.python3.arrow/.project
+++ b/org.knime.python3.arrow/.project
@@ -15,10 +15,21 @@
 			<arguments>
 			</arguments>
 		</buildCommand>
+		<buildCommand>
+			<name>org.eclipse.pde.ManifestBuilder</name>
+			<arguments>
+			</arguments>
+		</buildCommand>
+		<buildCommand>
+			<name>org.eclipse.pde.SchemaBuilder</name>
+			<arguments>
+			</arguments>
+		</buildCommand>
 	</buildSpec>
 	<natures>
 		<nature>org.eclipse.m2e.core.maven2Nature</nature>
 		<nature>org.eclipse.jdt.core.javanature</nature>
+		<nature>org.eclipse.pde.PluginNature</nature>
 	</natures>
 	<filteredResources>
 		<filter>
diff --git a/org.knime.python3.nodes/.project b/org.knime.python3.nodes/.project
index 1584b14f1..527673ce7 100644
--- a/org.knime.python3.nodes/.project
+++ b/org.knime.python3.nodes/.project
@@ -15,10 +15,21 @@
 			<arguments>
 			</arguments>
 		</buildCommand>
+		<buildCommand>
+			<name>org.eclipse.pde.ManifestBuilder</name>
+			<arguments>
+			</arguments>
+		</buildCommand>
+		<buildCommand>
+			<name>org.eclipse.pde.SchemaBuilder</name>
+			<arguments>
+			</arguments>
+		</buildCommand>
 	</buildSpec>
 	<natures>
 		<nature>org.eclipse.m2e.core.maven2Nature</nature>
 		<nature>org.eclipse.jdt.core.javanature</nature>
+		<nature>org.eclipse.pde.PluginNature</nature>
 	</natures>
 	<filteredResources>
 		<filter>
diff --git a/org.knime.python3.scripting.nodes/.project b/org.knime.python3.scripting.nodes/.project
index a99f12b2e..8909e99bd 100644
--- a/org.knime.python3.scripting.nodes/.project
+++ b/org.knime.python3.scripting.nodes/.project
@@ -15,10 +15,21 @@
 			<arguments>
 			</arguments>
 		</buildCommand>
+		<buildCommand>
+			<name>org.eclipse.pde.ManifestBuilder</name>
+			<arguments>
+			</arguments>
+		</buildCommand>
+		<buildCommand>
+			<name>org.eclipse.pde.SchemaBuilder</name>
+			<arguments>
+			</arguments>
+		</buildCommand>
 	</buildSpec>
 	<natures>
 		<nature>org.eclipse.m2e.core.maven2Nature</nature>
 		<nature>org.eclipse.jdt.core.javanature</nature>
+		<nature>org.eclipse.pde.PluginNature</nature>
 	</natures>
 	<filteredResources>
 		<filter>
diff --git a/org.knime.python3.scripting/.project b/org.knime.python3.scripting/.project
index f42ee1588..8bea26a64 100644
--- a/org.knime.python3.scripting/.project
+++ b/org.knime.python3.scripting/.project
@@ -15,10 +15,21 @@
 			<arguments>
 			</arguments>
 		</buildCommand>
+		<buildCommand>
+			<name>org.eclipse.pde.ManifestBuilder</name>
+			<arguments>
+			</arguments>
+		</buildCommand>
+		<buildCommand>
+			<name>org.eclipse.pde.SchemaBuilder</name>
+			<arguments>
+			</arguments>
+		</buildCommand>
 	</buildSpec>
 	<natures>
 		<nature>org.eclipse.m2e.core.maven2Nature</nature>
 		<nature>org.eclipse.jdt.core.javanature</nature>
+		<nature>org.eclipse.pde.PluginNature</nature>
 	</natures>
 	<filteredResources>
 		<filter>
diff --git a/org.knime.python3.types/.project b/org.knime.python3.types/.project
index 97b67eed1..856558084 100644
--- a/org.knime.python3.types/.project
+++ b/org.knime.python3.types/.project
@@ -15,10 +15,21 @@
 			<arguments>
 			</arguments>
 		</buildCommand>
+		<buildCommand>
+			<name>org.eclipse.pde.ManifestBuilder</name>
+			<arguments>
+			</arguments>
+		</buildCommand>
+		<buildCommand>
+			<name>org.eclipse.pde.SchemaBuilder</name>
+			<arguments>
+			</arguments>
+		</buildCommand>
 	</buildSpec>
 	<natures>
 		<nature>org.eclipse.m2e.core.maven2Nature</nature>
 		<nature>org.eclipse.jdt.core.javanature</nature>
+		<nature>org.eclipse.pde.PluginNature</nature>
 	</natures>
 	<filteredResources>
 		<filter>
diff --git a/org.knime.python3.views/.project b/org.knime.python3.views/.project
index e0fa10983..8e70d8867 100644
--- a/org.knime.python3.views/.project
+++ b/org.knime.python3.views/.project
@@ -15,10 +15,21 @@
 			<arguments>
 			</arguments>
 		</buildCommand>
+		<buildCommand>
+			<name>org.eclipse.pde.ManifestBuilder</name>
+			<arguments>
+			</arguments>
+		</buildCommand>
+		<buildCommand>
+			<name>org.eclipse.pde.SchemaBuilder</name>
+			<arguments>
+			</arguments>
+		</buildCommand>
 	</buildSpec>
 	<natures>
 		<nature>org.eclipse.m2e.core.maven2Nature</nature>
 		<nature>org.eclipse.jdt.core.javanature</nature>
+		<nature>org.eclipse.pde.PluginNature</nature>
 	</natures>
 	<filteredResources>
 		<filter>
diff --git a/org.knime.python3/.project b/org.knime.python3/.project
index f0b3b4bc1..6ac9ac83f 100644
--- a/org.knime.python3/.project
+++ b/org.knime.python3/.project
@@ -15,10 +15,21 @@
 			<arguments>
 			</arguments>
 		</buildCommand>
+		<buildCommand>
+			<name>org.eclipse.pde.ManifestBuilder</name>
+			<arguments>
+			</arguments>
+		</buildCommand>
+		<buildCommand>
+			<name>org.eclipse.pde.SchemaBuilder</name>
+			<arguments>
+			</arguments>
+		</buildCommand>
 	</buildSpec>
 	<natures>
 		<nature>org.eclipse.m2e.core.maven2Nature</nature>
 		<nature>org.eclipse.jdt.core.javanature</nature>
+		<nature>org.eclipse.pde.PluginNature</nature>
 	</natures>
 	<filteredResources>
 		<filter>
diff --git a/org.knime.python3/META-INF/MANIFEST.MF b/org.knime.python3/META-INF/MANIFEST.MF
index 7d639126f..c0e3355b4 100644
--- a/org.knime.python3/META-INF/MANIFEST.MF
+++ b/org.knime.python3/META-INF/MANIFEST.MF
@@ -18,7 +18,6 @@ Require-Bundle: com.google.guava;bundle-version="[31.0.1,32.0.0)",
  org.eclipse.equinox.p2.core;bundle-version="[2.0.0,3.0.0)";visibility:=reexport,
  org.eclipse.equinox.p2.engine;bundle-version="[2.0.0,3.0.0)";visibility:=reexport
 Export-Package: org.knime.python3,
- org.knime.python3.data,
  org.knime.python3.utils
 Automatic-Module-Name: org.knime.python3
 Eclipse-RegisterBuddy: org.knime.ext.py4j