If you say
(lldb) frame variable
without first launching the inferior, you get:
error: invalid frame

this is misleading and should probably hint that there is no process. Adding this flag makes sure that we get:
error: invalid process

The difference between eFlagRequiresProcess and eFlagProcessMustBeLaunched is an open question.

git-svn-id: https://llvm.org/svn/llvm-project/lldb/trunk@175702 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/source/Commands/CommandObjectFrame.cpp b/source/Commands/CommandObjectFrame.cpp
index 1882731..aafdd79 100644
--- a/source/Commands/CommandObjectFrame.cpp
+++ b/source/Commands/CommandObjectFrame.cpp
@@ -308,7 +308,8 @@
                              eFlagRequiresFrame |
                              eFlagTryTargetAPILock |
                              eFlagProcessMustBeLaunched |
-                             eFlagProcessMustBePaused),
+                             eFlagProcessMustBePaused |
+                             eFlagRequiresProcess),
         m_option_group (interpreter),
         m_option_variable(true), // Include the frame specific options by passing "true"
         m_option_format (eFormatDefault),