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ClearAlll error message

• To: mathgroup at smc.vnet.net
• Subject: [mg92347] ClearAlll error message
• From: carlos at Colorado.EDU
• Date: Sun, 28 Sep 2008 07:21:43 -0400 (EDT)

Just out of curiosity.  The following ClearAll works as expected.

  name=Symbol["A"]; ClearAll[name];

But this elicits an error message:

  ClearAll[Symbol["A"]];

Why?  A non-standard argument evaluation?

[The message came deep from the bowels of a complicated code
to find tensor invariants. A module received a string from which to
build related symbol names with that string as root]