Problems for source package backbone

BuildDepends

Package declares a build time dependency on coffeescript <!nocheck> which cannot be satisfied on mips64el. Package backbone does not exist on mips64el.
Package declares a build time dependency on coffeescript <!nocheck> which cannot be satisfied on armel. Package backbone does not exist on armel.
Package declares a build time dependency on brotli which cannot be satisfied on mips64el. Package backbone does not exist on mips64el.
Package declares a build time dependency on brotli which cannot be satisfied on armel. Package backbone does not exist on armel.
Package declares a build time dependency on jq which cannot be satisfied on armel. Package backbone does not exist on armel.
Package declares a build time dependency on jq which cannot be satisfied on mips64el. Package backbone does not exist on mips64el.
Package declares a build time dependency on pandoc <!nodoc> which cannot be satisfied on mips64el. Package backbone does not exist on mips64el.
Package declares a build time dependency on pandoc <!nodoc> which cannot be satisfied on armel. Package backbone does not exist on armel.
Package declares a build time dependency on uglifyjs (>= 3) which cannot be satisfied on armel. Package backbone does not exist on armel.
Package declares a build time dependency on uglifyjs (>= 3) which cannot be satisfied on mips64el. Package backbone does not exist on mips64el.
Package declares a build time dependency on pigz which cannot be satisfied on armel. Package backbone does not exist on armel.
Package declares a build time dependency on pigz which cannot be satisfied on mips64el. Package backbone does not exist on mips64el.
Package declares a build time dependency on libjs-underscore (>= 1.8.3~dfsg) <!nocheck> which cannot be satisfied on armel. Package backbone does not exist on armel.
Package declares a build time dependency on libjs-underscore (>= 1.8.3~dfsg) <!nocheck> which cannot be satisfied on mips64el. Package backbone does not exist on mips64el.
Package declares a build time dependency on debhelper-compat (= 13) which cannot be satisfied on mips64el. Package backbone does not exist on mips64el.
Package declares a build time dependency on debhelper-compat (= 13) which cannot be satisfied on armel. Package backbone does not exist on armel.
Package declares a build time dependency on node-underscore (>= 1.8.3~dfsg) <!nocheck> which cannot be satisfied on mips64el. Package backbone does not exist on mips64el.
Package declares a build time dependency on node-underscore (>= 1.8.3~dfsg) <!nocheck> which cannot be satisfied on armel. Package backbone does not exist on armel.
Package declares a build time dependency on node-source-map which cannot be satisfied on mips64el. Package backbone does not exist on mips64el.
Package declares a build time dependency on node-source-map which cannot be satisfied on armel. Package backbone does not exist on armel.