Handle errors when requiring gems gracefully

Fixes #3960.

1 files changed, 7 insertions, 1 deletions

diff --git a/lib/bundler/runtime.rb b/lib/bundler/runtime.rb
index 5f340a3e64..5e87ee7cc3 100644
--- a/lib/bundler/runtime.rb
+++ b/lib/bundler/runtime.rb
@@ -73,7 +73,13 @@ module Bundler
             # Allow `require: true` as an alias for `require: <name>`
             file = dep.name if file == true
             required_file = file
-            Kernel.require file
+            begin
+              Kernel.require file
+            rescue => e
+              raise e if e.is_a?(LoadError) # we handle this a little later
+              raise Bundler::GemRequireError.new e,
+                "There was an error while trying to load the gem '#{file}'."
+            end
           end
         rescue LoadError => e
           REQUIRE_ERRORS.find {|r| r =~ e.message }