I managed to trick the flex-sdk apache build server job to work. On consecutive runs, it seems like a recent checkin [1] has broken the build for real. It seems like the "import mx.core.mx_internal" in RichEditableText.as was removed in error.
This is the console output: *spark*: *bundles-clean*: *clean*: *prepare*: [copy] Copying 1 file to f:\hudson\hudson-slave\workspace\flex-sdk\frameworks\projects\spark *swc-compile*: [echo] Compiling frameworks/libs/spark.swc [compc] Loading configuration file F:\hudson\hudson-slave\workspace\flex-sdk\frameworks\projects\spark\compile-config.xml [compc] F:\hudson\hudson-slave\workspace\flex-sdk\frameworks\projects\spark\src\spark\components\RichEditableText.as(96): col: 19 Error: Namespace was not found or is not a compile-time constant. [compc] [compc] use namespace mx_internal; [compc] ^ [compc] Piotrz, please fix this when you get a chance. If you are not around, I will fix it and continue working on the Jenkins builds. Thanks, Om [1] https://git-wip-us.apache.org/repos/asf?p=flex-sdk.git;a=commitdiff;h=eb510bf5bf34481ce9e1ae5db88f6d36546e0ab0