1 files changed, 9 insertions, 1 deletions

diff --git a/vendor/github.com/hashicorp/terraform/configs/configload/loader_load.go b/vendor/github.com/hashicorp/terraform/configs/configload/loader_load.go
index 93a9420..0e6cba9 100644
--- a/vendor/github.com/hashicorp/terraform/configs/configload/loader_load.go
+++ b/vendor/github.com/hashicorp/terraform/configs/configload/loader_load.go
@@ -64,7 +64,15 @@ func (l *Loader) moduleWalkerLoad(req *configs.ModuleRequest) (*configs.Module,
                         Subject:  &req.SourceAddrRange,
                 })
         }
-        if !req.VersionConstraint.Required.Check(record.Version) {
+        if len(req.VersionConstraint.Required) > 0 && record.Version == nil {
+                diags = append(diags, &hcl.Diagnostic{
+                        Severity: hcl.DiagError,
+                        Summary:  "Module version requirements have changed",
+                        Detail:   "The version requirements have changed since this module was installed and the installed version is no longer acceptable. Run \"terraform init\" to install all modules required by this configuration.",
+                        Subject:  &req.SourceAddrRange,
+                })
+        }
+        if record.Version != nil && !req.VersionConstraint.Required.Check(record.Version) {
                 diags = append(diags, &hcl.Diagnostic{
                         Severity: hcl.DiagError,
                         Summary:  "Module version requirements have changed",