I just installed Macport and when I tried to use it I got the error:

jing-tangs-computer:/developer/cairo-1.4.10 Jing$ sudo port install cairo

Library not loaded: /usr/lib/libcurl.4.dylib

  Referenced from: /opt/local/share/macports/Tcl/pextlib1.0/Pextlib.dylib

  Reason: image not found

    while executing

"load /opt/local/share/macports/Tcl/pextlib1.0/Pextlib.dylib"

    ("package ifneeded" script)

    invoked from within

"package_native require Pextlib 1.0"

    ("eval" body line 1)

    invoked from within

"eval package_native $args"

    (procedure "package" line 14)

    invoked from within

"package require Pextlib 1.0"

    (procedure "mportinit" line 365)

    invoked from within

"mportinit ui_options global_options global_variations"

Error: /opt/local/bin/port: Failed to initialize ports system, Library not loaded: /usr/lib/libcurl.4.dylib

  Referenced from: /opt/local/share/macports/Tcl/pextlib1.0/Pextlib.dylib

  Reason: image not found

Could anyone please give me some idea what's going wrong here? Thanks very much in advance!!!

Jing