Error
This is MetaPost, version 1.504 (kpathsea version 6.0.0)
(/opt/luatex/standalone-2011/tex/texmf-context/metapost/context/base/metafun.mp (/opt/luatex/standalone-2011/tex/texmf-context/metapost/context/base/metafun.mpii (/opt/luatex/standalone-2011/tex/texmf-context/metapost/context/base/mp-base.mpii
Preloading the plain mem file, version 0.63) (/opt/luatex/standalone-2011/tex/texmf-context/metapost/context/base/mp-tool.mp) (/opt/luatex/standalone-2011/tex/texmf-context/metapost/context/base/mp-spec.mpii)
(/opt/luatex/standalone-2011/tex/texmf-context/metapost/context/base/mp-core.mpii) (/opt/luatex/standalone-2011/tex/texmf-context/metapost/context/base/mp-page.mp) (/opt/luatex/standalone-2011/tex/texmf-context/metapost/context/base/mp-text.mp)
(/opt/luatex/standalone-2011/tex/texmf-context/metapost/context/base/mp-txts.mp) (/opt/luatex/standalone-2011/tex/texmf-context/metapost/context/base/mp-shap.mp) (/opt/luatex/standalone-2011/tex/texmf-context/metapost/context/base/mp-butt.mp)
! I can't open file `mp-char.mpii'.
l.40 input mp-char.mpii
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