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.

llvm-svn: 175702

lldb/source/Commands/CommandObjectFrame.cpp

@@ -308,7 +308,8 @@ public:
                              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),