我一直在嘗試使用imagick部署一個簡單的 Go 應用程序 這需要Imagemagick. 我已經嘗試使用多 buildpack來安裝 Imagemagick 并運行我的應用程序。這是我的.buildpack樣子：https://github.com/mcollina/heroku-buildpack-imagemagickhttps://github.com/kr/heroku-buildpack-go.git這是我在 Heroku 上看到的錯誤：    Fetching repository, done.Counting objects: 170, done.Compressing objects: 100% (154/154), done.Writing objects: 100% (169/169), 170.13 KiB | 0 bytes/s, done.Total 169 (delta 21), reused 0 (delta 0)-----> Fetching custom git buildpack... done-----> Multipack app detected=====> Downloading Buildpack: https://github.com/mcollina/heroku-buildpack-imagemagick=====> Detected Framework:-----> Installing libpng 1.5.14       Download completed       Installation completed-----> Installing imagemagick 6.8.2-3       Download completed       Installation completed-----> Building runtime environment for imagemagick=====> Downloading Buildpack: https://github.com/kr/heroku-buildpack-go.git=====> Detected Framework: Go-----> Installing go1.3... done-----> Running: godep go install -tags heroku ./...# github.com/gographics/imagick/imagickerror: 'RemoveAlphaChannel' undeclared (first use in this function)error: 'FlattenAlphaChannel' undeclared (first use in this function)godep: go exit status 2 !     Push rejected, failed to compile Multipack appTo [email protected]:philosoraptor-me.git ! [remote rejected] master -> master (pre-receive hook declined)error: failed to push some refs to