Problem integrate on Dspace 6.3

[ghazi16]

Hello, I just integrating DSpace 6.3 with the Elsevier API 6.x patch, but when applying the API patch we have errors.
I have tried to do various things i search on google or dspace google group , but i can't find anything about this error.

root@sc:/build/dspace-6.3-src-release# git apply --check dspace/dspace_6x...stable_6x.patch
error: .gitignore: No such file or directory
error: patch failed: dspace/config/dspace.cfg:642
error: dspace/config/dspace.cfg: patch does not apply
error: patch failed: dspace/config/modules/publication-lookup.cfg:12
error: dspace/config/modules/publication-lookup.cfg: patch does not apply
error: patch failed: dspace/config/xmlui.xconf:81
error: dspace/config/xmlui.xconf: patch does not apply
error: dspace/modules/xmlui-mirage2/src/main/webapp/themes/Mirage2/scripts.xml: already exists in working directory
error: dspace/modules/xmlui-mirage2/src/main/webapp/themes/Mirage2/xsl/custom/aspect/artifactbrowser/item-view.xsl: already exists in working directory
error: dspace/modules/xmlui-mirage2/src/main/webapp/themes/Mirage2/xsl/custom/core/global-variables.xsl: already exists in working directory
error: dspace/modules/xmlui-mirage2/src/main/webapp/themes/Mirage2/xsl/custom/core/page-structure.xsl: already exists in working directory
error: dspace/modules/xmlui-mirage2/src/main/webapp/themes/Mirage2/xsl/theme.xsl: already exists in working directory
error: dspace/modules/xmlui/src/main/java/org/dspace/app/xmlui/objectmanager/AbstractAdapter.java: already exists in working directory
error: dspace/modules/xmlui/src/main/java/org/dspace/app/xmlui/objectmanager/ItemAdapter.java: already exists in working directory
error: dspace/modules/xmlui/src/main/webapp/themes/Mirage/Mirage.xsl: already exists in working directory
error: dspace/modules/xmlui/src/main/webapp/themes/Mirage/lib/css/style.css: already exists in working directory
error: patch failed: dspace/modules/xmlui/src/main/webapp/themes/Mirage/lib/css/style.css:1495
error: dspace/modules/xmlui/src/main/webapp/themes/Mirage/lib/css/style.css: patch does not apply
error: patch failed: dspace/config/spring/api/pubmed-integration.xml:9
error: dspace/config/spring/api/pubmed-integration.xml: patch does not apply
error: patch failed: dspace/config/xmlui.xconf:160
error: dspace/config/xmlui.xconf: patch does not apply
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