diff --git a/gen/com/google/gbmc/Hoth/meson.build b/gen/com/google/gbmc/Hoth/meson.build
index d2d3de0..16871da 100644
--- a/gen/com/google/gbmc/Hoth/meson.build
+++ b/gen/com/google/gbmc/Hoth/meson.build
@@ -1,7 +1,7 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'com/google/gbmc/Hoth__cpp'.underscorify(),
-    input: [ '../../../../../yaml/com/google/gbmc/Hoth.interface.yaml',  ],
+    input: [ '../../../../../yaml/com/google/gbmc/Hoth.errors.yaml', '../../../../../yaml/com/google/gbmc/Hoth.interface.yaml',  ],
     output: [ 'error.cpp', 'error.hpp', 'common.hpp', 'server.cpp', 'server.hpp', 'aserver.hpp', 'client.hpp',  ],
     depend_files: sdbusplusplus_depfiles,
     command: [
diff --git a/gen/meson.build b/gen/meson.build
index c63d829..38522c5 100644
--- a/gen/meson.build
+++ b/gen/meson.build
@@ -5,10 +5,10 @@
     check: true,
 ).stdout().strip().split('\n')[0]
 
-if sdbuspp_gen_meson_ver != 'sdbus++-gen-meson version 8'
+if sdbuspp_gen_meson_ver != 'sdbus++-gen-meson version 9'
     warning('Generated meson files from wrong version of sdbus++-gen-meson.')
     warning(
-        'Expected "sdbus++-gen-meson version 8", got:',
+        'Expected "sdbus++-gen-meson version 9", got:',
         sdbuspp_gen_meson_ver
     )
 endif
diff --git a/gen/xyz/openbmc_project/Control/Host/meson.build b/gen/xyz/openbmc_project/Control/Host/meson.build
index 58b8b9d..dc496b7 100644
--- a/gen/xyz/openbmc_project/Control/Host/meson.build
+++ b/gen/xyz/openbmc_project/Control/Host/meson.build
@@ -1,7 +1,7 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/Control/Host__cpp'.underscorify(),
-    input: [ '../../../../../yaml/xyz/openbmc_project/Control/Host.interface.yaml',  ],
+    input: [ '../../../../../yaml/xyz/openbmc_project/Control/Host.errors.yaml', '../../../../../yaml/xyz/openbmc_project/Control/Host.interface.yaml',  ],
     output: [ 'error.cpp', 'error.hpp', 'common.hpp', 'server.cpp', 'server.hpp', 'aserver.hpp', 'client.hpp',  ],
     depend_files: sdbusplusplus_depfiles,
     command: [
diff --git a/gen/xyz/openbmc_project/Dump/Create/meson.build b/gen/xyz/openbmc_project/Dump/Create/meson.build
index e0bc144..d4fd9f3 100644
--- a/gen/xyz/openbmc_project/Dump/Create/meson.build
+++ b/gen/xyz/openbmc_project/Dump/Create/meson.build
@@ -1,7 +1,7 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/Dump/Create__cpp'.underscorify(),
-    input: [ '../../../../../yaml/xyz/openbmc_project/Dump/Create.interface.yaml',  ],
+    input: [ '../../../../../yaml/xyz/openbmc_project/Dump/Create.errors.yaml', '../../../../../yaml/xyz/openbmc_project/Dump/Create.interface.yaml',  ],
     output: [ 'error.cpp', 'error.hpp', 'common.hpp', 'server.cpp', 'server.hpp', 'aserver.hpp', 'client.hpp',  ],
     depend_files: sdbusplusplus_depfiles,
     command: [
diff --git a/gen/xyz/openbmc_project/Memory/MemoryECC/meson.build b/gen/xyz/openbmc_project/Memory/MemoryECC/meson.build
index 0d9db5c..e51a8eb 100644
--- a/gen/xyz/openbmc_project/Memory/MemoryECC/meson.build
+++ b/gen/xyz/openbmc_project/Memory/MemoryECC/meson.build
@@ -1,7 +1,7 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/Memory/MemoryECC__cpp'.underscorify(),
-    input: [ '../../../../../yaml/xyz/openbmc_project/Memory/MemoryECC.interface.yaml',  ],
+    input: [ '../../../../../yaml/xyz/openbmc_project/Memory/MemoryECC.errors.yaml', '../../../../../yaml/xyz/openbmc_project/Memory/MemoryECC.interface.yaml',  ],
     output: [ 'error.cpp', 'error.hpp', 'common.hpp', 'server.cpp', 'server.hpp', 'aserver.hpp', 'client.hpp',  ],
     depend_files: sdbusplusplus_depfiles,
     command: [
diff --git a/gen/xyz/openbmc_project/Nvme/Status/meson.build b/gen/xyz/openbmc_project/Nvme/Status/meson.build
index 590c5ec..9cf44d5 100644
--- a/gen/xyz/openbmc_project/Nvme/Status/meson.build
+++ b/gen/xyz/openbmc_project/Nvme/Status/meson.build
@@ -1,7 +1,7 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/Nvme/Status__cpp'.underscorify(),
-    input: [ '../../../../../yaml/xyz/openbmc_project/Nvme/Status.interface.yaml',  ],
+    input: [ '../../../../../yaml/xyz/openbmc_project/Nvme/Status.errors.yaml', '../../../../../yaml/xyz/openbmc_project/Nvme/Status.interface.yaml',  ],
     output: [ 'error.cpp', 'error.hpp', 'common.hpp', 'server.cpp', 'server.hpp', 'aserver.hpp', 'client.hpp',  ],
     depend_files: sdbusplusplus_depfiles,
     command: [
diff --git a/gen/xyz/openbmc_project/Smbios/MDR_V2/meson.build b/gen/xyz/openbmc_project/Smbios/MDR_V2/meson.build
index 470bd24..18351b4 100644
--- a/gen/xyz/openbmc_project/Smbios/MDR_V2/meson.build
+++ b/gen/xyz/openbmc_project/Smbios/MDR_V2/meson.build
@@ -1,7 +1,7 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/Smbios/MDR_V2__cpp'.underscorify(),
-    input: [ '../../../../../yaml/xyz/openbmc_project/Smbios/MDR_V2.interface.yaml',  ],
+    input: [ '../../../../../yaml/xyz/openbmc_project/Smbios/MDR_V2.errors.yaml', '../../../../../yaml/xyz/openbmc_project/Smbios/MDR_V2.interface.yaml',  ],
     output: [ 'error.cpp', 'error.hpp', 'common.hpp', 'server.cpp', 'server.hpp', 'aserver.hpp', 'client.hpp',  ],
     depend_files: sdbusplusplus_depfiles,
     command: [
diff --git a/gen/xyz/openbmc_project/Software/Update/meson.build b/gen/xyz/openbmc_project/Software/Update/meson.build
index 5d88c41..d34410c 100644
--- a/gen/xyz/openbmc_project/Software/Update/meson.build
+++ b/gen/xyz/openbmc_project/Software/Update/meson.build
@@ -1,7 +1,7 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/Software/Update__cpp'.underscorify(),
-    input: [ '../../../../../yaml/xyz/openbmc_project/Software/Update.interface.yaml',  ],
+    input: [ '../../../../../yaml/xyz/openbmc_project/Software/Update.errors.yaml', '../../../../../yaml/xyz/openbmc_project/Software/Update.interface.yaml',  ],
     output: [ 'error.cpp', 'error.hpp', 'common.hpp', 'server.cpp', 'server.hpp', 'aserver.hpp', 'client.hpp',  ],
     depend_files: sdbusplusplus_depfiles,
     command: [
diff --git a/gen/xyz/openbmc_project/Software/Version/meson.build b/gen/xyz/openbmc_project/Software/Version/meson.build
index 9809334..373950c 100644
--- a/gen/xyz/openbmc_project/Software/Version/meson.build
+++ b/gen/xyz/openbmc_project/Software/Version/meson.build
@@ -1,7 +1,7 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/Software/Version__cpp'.underscorify(),
-    input: [ '../../../../../yaml/xyz/openbmc_project/Software/Version.interface.yaml',  ],
+    input: [ '../../../../../yaml/xyz/openbmc_project/Software/Version.errors.yaml', '../../../../../yaml/xyz/openbmc_project/Software/Version.interface.yaml',  ],
     output: [ 'error.cpp', 'error.hpp', 'common.hpp', 'server.cpp', 'server.hpp', 'aserver.hpp', 'client.hpp',  ],
     depend_files: sdbusplusplus_depfiles,
     command: [
diff --git a/gen/xyz/openbmc_project/State/BMC/meson.build b/gen/xyz/openbmc_project/State/BMC/meson.build
index ead5243..a802206 100644
--- a/gen/xyz/openbmc_project/State/BMC/meson.build
+++ b/gen/xyz/openbmc_project/State/BMC/meson.build
@@ -1,7 +1,7 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/State/BMC__cpp'.underscorify(),
-    input: [ '../../../../../yaml/xyz/openbmc_project/State/BMC.interface.yaml',  ],
+    input: [ '../../../../../yaml/xyz/openbmc_project/State/BMC.errors.yaml', '../../../../../yaml/xyz/openbmc_project/State/BMC.interface.yaml',  ],
     output: [ 'error.cpp', 'error.hpp', 'common.hpp', 'server.cpp', 'server.hpp', 'aserver.hpp', 'client.hpp',  ],
     depend_files: sdbusplusplus_depfiles,
     command: [
diff --git a/gen/xyz/openbmc_project/State/Chassis/meson.build b/gen/xyz/openbmc_project/State/Chassis/meson.build
index 6b52733..69b9141 100644
--- a/gen/xyz/openbmc_project/State/Chassis/meson.build
+++ b/gen/xyz/openbmc_project/State/Chassis/meson.build
@@ -1,7 +1,7 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/State/Chassis__cpp'.underscorify(),
-    input: [ '../../../../../yaml/xyz/openbmc_project/State/Chassis.interface.yaml',  ],
+    input: [ '../../../../../yaml/xyz/openbmc_project/State/Chassis.errors.yaml', '../../../../../yaml/xyz/openbmc_project/State/Chassis.interface.yaml',  ],
     output: [ 'error.cpp', 'error.hpp', 'common.hpp', 'server.cpp', 'server.hpp', 'aserver.hpp', 'client.hpp',  ],
     depend_files: sdbusplusplus_depfiles,
     command: [
diff --git a/gen/xyz/openbmc_project/State/Host/meson.build b/gen/xyz/openbmc_project/State/Host/meson.build
index 1fe8c3f..bd3cde0 100644
--- a/gen/xyz/openbmc_project/State/Host/meson.build
+++ b/gen/xyz/openbmc_project/State/Host/meson.build
@@ -1,7 +1,7 @@
 # Generated file; do not modify.
 generated_sources += custom_target(
     'xyz/openbmc_project/State/Host__cpp'.underscorify(),
-    input: [ '../../../../../yaml/xyz/openbmc_project/State/Host.interface.yaml',  ],
+    input: [ '../../../../../yaml/xyz/openbmc_project/State/Host.errors.yaml', '../../../../../yaml/xyz/openbmc_project/State/Host.interface.yaml',  ],
     output: [ 'error.cpp', 'error.hpp', 'common.hpp', 'server.cpp', 'server.hpp', 'aserver.hpp', 'client.hpp',  ],
     depend_files: sdbusplusplus_depfiles,
     command: [