diff --git a/Dockerfile b/Dockerfile
index 866f38d..d6c18f7 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -23,15 +23,16 @@ RUN Rscript -e 'remotes::install_version("golem",upgrade="never", version = "0.3
 RUN Rscript -e 'remotes::install_version("shinymanager",upgrade="never", version = "1.0.400")'
 RUN Rscript -e 'remotes::install_version("pROC",upgrade="never", version = "1.18.0")'
 RUN Rscript -e 'remotes::install_version("vroom",upgrade="never", version = "1.5.3")'
-RUN Rscript -e 'remotes::install_version("largeList",upgrade="never", version = "0.3.1")'
 RUN Rscript -e 'remotes::install_version("shinydashboard",upgrade="never", version = "0.7.2")'
 RUN Rscript -e 'remotes::install_github("tpbilton/GUSbase", ref = "92119b9c57faa7abeede8236d24a4a8e85fb3df7")'
 RUN Rscript -e 'remotes::install_github("tpbilton/GUSMap@4d7d4057049819d045750d760a45976c8f30dac6")'
 RUN Rscript -e 'remotes::install_github("Cristianetaniguti/onemap@7f5ac29d65d0bd82d9e46fcc2a26e3fc904a0782")'
-RUN mkdir /build_zone
-ADD . /build_zone
-WORKDIR /build_zone
-RUN R -e 'remotes::install_local(upgrade="never")'
-RUN rm -rf /build_zone
-EXPOSE 3838
-CMD  ["R", "-e", "options('shiny.port'=3838,shiny.host='0.0.0.0');Reads2MapApp::run_app()"]
+RUN Rscript -e 'remotes::install_github("Yuchun-Zhang/R_largeList", ref = "v0.3.1", subdir = "largeList")'
+
+RUN apt-get update && apt-get install -y libtcl libtk
+
+RUN Rscript -e 'remotes::install_github("mmollina/mappoly")'
+RUN Rscript -e 'remotes::install_github("Cristianetaniguti/Reads2MapApp")'
+
+EXPOSE 80
+CMD  ["R", "-e", "options('shiny.port'=80,shiny.host='0.0.0.0');Reads2MapApp::run_app()"]
\ No newline at end of file
diff --git a/R/graphics_poly_emp.R b/R/graphics_poly_emp.R
index e369544..a5740cb 100644
--- a/R/graphics_poly_emp.R
+++ b/R/graphics_poly_emp.R
@@ -57,8 +57,8 @@ prepare_poly_datas_emp <- function(x = NULL, example_emp = NULL){
         temp_item <- list()
         for(i in 1:length(files)){
           if(grepl("map", files[i]) & !grepl("0", files[i])){
-            temp_item[[i]] <- list(readRDS(files[i]))
-          } else temp_item[[i]] <- readRDS(files[i])
+            temp_item[[i]] <- list(readRDS(gsub("/$", "", files[i])))
+          } else temp_item[[i]] <- readRDS(gsub("/$", "", files[i]))
         }
       } else temp_item <- NULL
       names(temp_item) <- sapply(strsplit(basename(files), "_"), function(x) paste0(x[1:3], collapse = "_"))
diff --git a/README.md b/README.md
index 7203a06..1a4e591 100644
--- a/README.md
+++ b/README.md
@@ -9,7 +9,7 @@
 
 ## Reads2Map App
 
-This shiny app plots graphics for descriptive analyses of the datasets generated by the [Reads2Map workflow](https://github.com/Cristianetaniguti/Reads2Map) workflows. Upload your results in the `Upload data` session. 
+This shiny app plots graphics for descriptive analyses of the datasets generated by the [Reads2Map ](https://github.com/Cristianetaniguti/Reads2Map) workflows. Upload your results in the `Upload data` session. 
 
 Each icon at the left corner of this page points to a different dataset and produces interactive plots.