diff --git a/r.scripts/sc_CI.TestData.Create.R b/r.scripts/sc_CI.TestData.Create.R
index ed879980d93a71993227baa0b7fcb983291de2e2..280b1bd1c1db3975e56c53889ee871c3f4ee89e6 100644
--- a/r.scripts/sc_CI.TestData.Create.R
+++ b/r.scripts/sc_CI.TestData.Create.R
@@ -1,5 +1,6 @@
 gc()
 .libPaths("/home2/ghenry/R/x86_64-pc-linux-gnu-library/3.4")
+library(methods)
 library(readr)
 library(Matrix)
 library(Seurat)
diff --git a/r.scripts/sc_Cluster.R b/r.scripts/sc_Cluster.R
index 1b4e0ec420a79ffe7eedee9cd1b0afa16379a51e..8daf4e6dd1b0223938ea06a14b3cda210aaf6c92 100755
--- a/r.scripts/sc_Cluster.R
+++ b/r.scripts/sc_Cluster.R
@@ -1,5 +1,6 @@
 gc()
 .libPaths("/home2/ghenry/R/x86_64-pc-linux-gnu-library/3.4")
+library(methods)
 library(optparse)
 library(Seurat)
 library(readr)
diff --git a/r.scripts/sc_D-SampleReorder.R b/r.scripts/sc_D-SampleReorder.R
index bbc6850ac566c7710ecc8c94c484e5012162714e..d731b7e68ea1b30fcb6a29211196b2229a512276 100755
--- a/r.scripts/sc_D-SampleReorder.R
+++ b/r.scripts/sc_D-SampleReorder.R
@@ -1,5 +1,6 @@
 gc()
 .libPaths("/home2/ghenry/R/x86_64-pc-linux-gnu-library/3.4")
+library(methods)
 library(optparse)
 library(Seurat)
 
diff --git a/r.scripts/sc_DEG.R b/r.scripts/sc_DEG.R
index 7e676256aab22a98e374e62efd77003f32367ce2..983329f4664bb35db33f5d06556032940a56d365 100755
--- a/r.scripts/sc_DEG.R
+++ b/r.scripts/sc_DEG.R
@@ -1,5 +1,6 @@
 gc()
 .libPaths("/home2/ghenry/R/x86_64-pc-linux-gnu-library/3.4")
+library(methods)
 library(optparse)
 library(Seurat)
 
diff --git a/r.scripts/sc_Demultiplex.R b/r.scripts/sc_Demultiplex.R
index 446c7fd84462458cc89ca6a797bb6e90f74e9eca..3906f989eba865b3dec77f350211bd14ac699055 100755
--- a/r.scripts/sc_Demultiplex.R
+++ b/r.scripts/sc_Demultiplex.R
@@ -1,5 +1,6 @@
 gc()
 .libPaths("/home2/ghenry/R/x86_64-pc-linux-gnu-library/3.4")
+library(methods)
 library(optparse)
 library(Seurat)
 library(readr)
diff --git a/r.scripts/sc_LineageSubClust.R b/r.scripts/sc_LineageSubClust.R
index 3ab299501be902c10e11ff1966a98c472ce5167f..f579955bf22bc7f8b4e79678f6863188a74e69ae 100755
--- a/r.scripts/sc_LineageSubClust.R
+++ b/r.scripts/sc_LineageSubClust.R
@@ -1,5 +1,6 @@
 gc()
 .libPaths("/home2/ghenry/R/x86_64-pc-linux-gnu-library/3.4")
+library(methods)
 library(optparse)
 library(Seurat)
 
diff --git a/r.scripts/sc_MergeSubClust.R b/r.scripts/sc_MergeSubClust.R
index 1b1ed90e8ccd0ad9ae7f7ab1adf91081cc3d1c76..604ed0f3fc41854a2159172225f9e7d225873e90 100755
--- a/r.scripts/sc_MergeSubClust.R
+++ b/r.scripts/sc_MergeSubClust.R
@@ -1,5 +1,6 @@
 gc()
 .libPaths("/home2/ghenry/R/x86_64-pc-linux-gnu-library/3.4")
+library(methods)
 library(optparse)
 library(Seurat)
 
diff --git a/r.scripts/sc_PC.Score.NE.R b/r.scripts/sc_PC.Score.NE.R
index 9b95a2f30d83977ca2f469732aac5cf796a8eb1f..6f85de25105888e0014d348db76e42f8df2a63a9 100755
--- a/r.scripts/sc_PC.Score.NE.R
+++ b/r.scripts/sc_PC.Score.NE.R
@@ -1,5 +1,6 @@
 gc()
 .libPaths("/home2/ghenry/R/x86_64-pc-linux-gnu-library/3.4")
+library(methods)
 library(optparse)
 library(Seurat)
 library(readr)
diff --git a/r.scripts/sc_PC.Score.Stress.R b/r.scripts/sc_PC.Score.Stress.R
index e6661c43f2b9294e71fcfbadeff19ae7c4446ab8..4a17509ec12aa030e581bbe26ee4d5f776925557 100755
--- a/r.scripts/sc_PC.Score.Stress.R
+++ b/r.scripts/sc_PC.Score.Stress.R
@@ -1,5 +1,6 @@
 gc()
 .libPaths("/home2/ghenry/R/x86_64-pc-linux-gnu-library/3.4")
+library(methods)
 library(optparse)
 library(Seurat)
 library(readr)
diff --git a/r.scripts/sc_QC.R b/r.scripts/sc_QC.R
index 8bfce2936d602d9302cb588798a79c6d344101c5..74c811e56562604becd29c3f7f6432dc1e5d9830 100755
--- a/r.scripts/sc_QC.R
+++ b/r.scripts/sc_QC.R
@@ -1,5 +1,6 @@
 gc()
 .libPaths("/home2/ghenry/R/x86_64-pc-linux-gnu-library/3.4")
+library(methods)
 library(optparse)
 library(Seurat)
 library(readr)
diff --git a/r.scripts/sc_QuSAGE.Lineage.R b/r.scripts/sc_QuSAGE.Lineage.R
index d017fee98b10ed8bdce3c130575057cc4a47b3ba..9c287948776f7ae6fd00dcde854f570c75a94534 100755
--- a/r.scripts/sc_QuSAGE.Lineage.R
+++ b/r.scripts/sc_QuSAGE.Lineage.R
@@ -1,5 +1,6 @@
 gc()
 .libPaths("/home2/ghenry/R/x86_64-pc-linux-gnu-library/3.4")
+library(methods)
 library(optparse)
 library(Seurat)
 library(readr)
diff --git a/r.scripts/sc_QuSAGE_EpiSubClust.R b/r.scripts/sc_QuSAGE_EpiSubClust.R
index 0d93b7754fff10c977b92b3610bf82b8dac93140..91fd7efd7c6b68be08045eada4af58a0643cf923 100755
--- a/r.scripts/sc_QuSAGE_EpiSubClust.R
+++ b/r.scripts/sc_QuSAGE_EpiSubClust.R
@@ -1,5 +1,6 @@
 gc()
 .libPaths("/home2/ghenry/R/x86_64-pc-linux-gnu-library/3.4")
+library(methods)
 library(optparse)
 library(Seurat)
 library(readr)
diff --git a/r.scripts/sc_QuSAGE_StSubClust.R b/r.scripts/sc_QuSAGE_StSubClust.R
index ac51bced90b0f1c98a5264febe142fa47fb038a8..586f2bf79732269365e0dff15be742f1ecbfac4f 100755
--- a/r.scripts/sc_QuSAGE_StSubClust.R
+++ b/r.scripts/sc_QuSAGE_StSubClust.R
@@ -1,5 +1,6 @@
 gc()
 .libPaths("/home2/ghenry/R/x86_64-pc-linux-gnu-library/3.4")
+library(methods)
 library(optparse)
 library(Seurat)
 library(readr)
diff --git a/r.scripts/sc_Seurat.Score.CellCycle.R b/r.scripts/sc_Seurat.Score.CellCycle.R
index f3126ee6a0845ceab00c5c38106dbe4fe028c622..a531ec79d9612fd3a937c49993e807a55f82d3aa 100755
--- a/r.scripts/sc_Seurat.Score.CellCycle.R
+++ b/r.scripts/sc_Seurat.Score.CellCycle.R
@@ -1,5 +1,6 @@
 gc()
 .libPaths("/home2/ghenry/R/x86_64-pc-linux-gnu-library/3.4")
+library(methods)
 library(optparse)
 library(Seurat)
 library(readr)
diff --git a/r.scripts/sc_Tables.R b/r.scripts/sc_Tables.R
index 89f81edaedc13e91e0528243c334fc0c7e18d949..d306ba1e34355deffc1fabf604612395f70451b0 100755
--- a/r.scripts/sc_Tables.R
+++ b/r.scripts/sc_Tables.R
@@ -1,5 +1,6 @@
 gc()
 .libPaths("/home2/ghenry/R/x86_64-pc-linux-gnu-library/3.4")
+library(methods)
 library(optparse)
 library(Seurat)
 
diff --git a/r.scripts/sc_mkGSEA.R b/r.scripts/sc_mkGSEA.R
index 6952e4ecbf1965872d8f863c5c19a1e8ea748d3f..3497a3bfc2945cb4036082276d2005ea39a5608c 100755
--- a/r.scripts/sc_mkGSEA.R
+++ b/r.scripts/sc_mkGSEA.R
@@ -1,4 +1,5 @@
 .libPaths("/home2/ghenry/R/x86_64-pc-linux-gnu-library/3.4")
+library(methods)
 library(optparse)
 library(Seurat)
 library(readr)