<html><body><div style="color:#000; background-color:#fff; font-family:HelveticaNeue-Light, Helvetica Neue Light, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:16px"><div id="yui_3_16_0_1_1439584486027_8560"><span id="yui_3_16_0_1_1439584486027_8786">Thanks for the quick reply, Mikhail, but no: the output of "cabal sandbox list-sources" looks fine.</span></div>  <br><div class="qtdSeparateBR" id="yui_3_16_0_1_1439584486027_8588">Any other ideas, anyone?</div><div class="qtdSeparateBR" id="yui_3_16_0_1_1439584486027_8588"><br></div><div class="qtdSeparateBR" id="yui_3_16_0_1_1439584486027_8588">--Eric</div><div class="qtdSeparateBR" id="yui_3_16_0_1_1439584486027_8588"><br></div><div class="yahoo_quoted" id="yui_3_16_0_1_1439584486027_8586" style="display: block;"> <div style="font-family: HelveticaNeue-Light, Helvetica Neue Light, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 16px;" id="yui_3_16_0_1_1439584486027_8585"> <div style="font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 16px;" id="yui_3_16_0_1_1439584486027_8584"> <div dir="ltr" id="yui_3_16_0_1_1439584486027_8587"> <font size="2" face="Arial" id="yui_3_16_0_1_1439584486027_8602"> On Friday, August 14, 2015 2:41 PM, Mikhail Glushenkov wrote:</font></div> <div class="y_msg_container" id="yui_3_16_0_1_1439584486027_8583">Hi,<br clear="none"><div class="yqt6464019546" id="yqtfd11161"><br clear="none">On 14 August 2015 at 21:00, Eric <<a shape="rect" ymailto="mailto:devnull1999@yahoo.com" href="mailto:devnull1999@yahoo.com">devnull1999@yahoo.com</a>> wrote:<br clear="none">> I'm getting a warning<br clear="none">><br clear="none">>> Warning: Could not list sources of the add-source dependency 'xyz'.<br clear="none">>> Skipping the timestamp check.<br clear="none">><br clear="none">> when building a sandboxed project with add-source dependencies.  I tried<br clear="none">> increasing the verbosity of cabal, but it still won't tell me what's going<br clear="none">> wrong so I can fix it.<br clear="none">><br clear="none">> Any suggestions on how to debug or fix this?</div><br clear="none">Check the output of `cabal sandbox list-sources`. A likely cause is<br clear="none">that one of add-source dependencies refers to a non-existent<br clear="none">directory.<div class="yqt6464019546" id="yqtfd45056"><br clear="none"></div><br><br></div>  </div> </div>  </div></div></body></html>