qx serve
show these error.

        async.eachSeries(appInfos,
          (appInfo, cb) => {
            target.set({
              scriptPrefix: appInfo.className + "-"
            });
            // Calculate dependencies and write it out

PS E:\tmp\ootest\msw\test5d\test5\qx_packages\qooxdoo_qxl_demobrowser_master> qx serve
Making applications...

Making the applications...
Cannot find asset alias referenced in qxl.demobrowser:qxl/demobrowser/demo/fonts/fontawesome-webfont.meta
Cannot find asset mapping referenced in qxl.demobrowser:qxl/demobrowser/demo/fonts/fontawesome-webfont.meta
Cannot find asset size referenced in qxl.demobrowser:qxl/demobrowser/demo/fonts/fontawesome-webfont.meta
Writing application demobrowser

DEMO BUILD STARTED
Catch entries in E:/tmp/ootest/msw/test5d/test5/qx_packages/qooxdoo_qxl_demobrowser_master/source/demo/
246 entries (files and directories) catched
compiled/source/demobrowser/script/demodata.json created

get apps
no class found for bom/blank.html
no class found for widget/blank.html
DEMO BUILD START COMPILE
C:\Users\lixm\AppData\Roaming\npm\node_modules@qooxdoo\compiler\node_modules@qooxdoo\framework\lib\qx_server\part-0.js:22282
throw new Error("No such property: " + prop);
^

Error: No such property: scriptPrefix
at wrapper.set (C:\Users\lixm\AppData\Roaming\npm\node_modules@qooxdoo\compiler\node_modules@qooxdoo\framework\lib\qx_server\part-0.js:22282:21)
at async.eachSeries (E:\tmp\ootest\msw\test5d\test5\qx_packages\qooxdoo_qxl_demobrowser_master\compile.js:119:24)
at C:\Users\lixm\AppData\Roaming\npm\node_modules@qooxdoo\compiler\node_modules\async\dist\async.js:3110:16
at replenish (C:\Users\lixm\AppData\Roaming\npm\node_modules@qooxdoo\compiler\node_modules\async\dist\async.js:1011:17)
at C:\Users\lixm\AppData\Roaming\npm\node_modules@qooxdoo\compiler\node_modules\async\dist\async.js:1016:9
at eachLimit$1 (C:\Users\lixm\AppData\Roaming\npm\node_modules@qooxdoo\compiler\node_modules\async\dist\async.js:3196:24)
at Object. (C:\Users\lixm\AppData\Roaming\npm\node_modules@qooxdoo\compiler\node_modules\async\dist\async.js:1046:16)
at async.series (E:\tmp\ootest\msw\test5d\test5\qx_packages\qooxdoo_qxl_demobrowser_master\compile.js:117:19)
at C:\Users\lixm\AppData\Roaming\npm\node_modules@qooxdoo\compiler\node_modules\async\dist\async.js:3880:24
at replenish (C:\Users\lixm\AppData\Roaming\npm\node_modules@qooxdoo\compiler\node_modules\async\dist\async.js:1011:17)
at iterateeCallback (C:\Users\lixm\AppData\Roaming\npm\node_modules@qooxdoo\compiler\node_modules\async\dist\async.js:995:17)
at C:\Users\lixm\AppData\Roaming\npm\node_modules@qooxdoo\compiler\node_modules\async\dist\async.js:969:16
at C:\Users\lixm\AppData\Roaming\npm\node_modules@qooxdoo\compiler\node_modules\async\dist\async.js:3885:13
at E:\tmp\ootest\msw\test5d\test5\qx_packages\qooxdoo_qxl_demobrowser_master\tool\lib\DataGenerator.js:346:19
at WriteStream. (E:\tmp\ootest\msw\test5d\test5\qx_packages\qooxdoo_qxl_demobrowser_master\tool\lib\DataGenerator.js:381:9)
at WriteStream.emit (events.js:198:13)

Google map in the example doesn't work. The next error is observed in the console:
Mixed Content: The page at 'https://qooxdoo.org/qxl.demobrowser/#showcase~Maps.html' was loaded over HTTPS, but requested an insecure script 'http://maps.google.com/maps/api/js?sensor=false&language=en'. This request has been blocked; the content must be served over HTTPS.

There is a 404 error trying to resolve the "loading" icon for the dynamic virtual tree, it is trying to locate the icon at https://qooxdoo.org/qxl.demobrowser/demobrowser/demo/virtual/demobrowser/demo/icons/loading22.gif when it seems it is actually at https://qooxdoo.org/qxl.demobrowser/resource/qxl/demobrowser/demo/icons/loading22.gif

When editing a single app while running qx serve it takes 4 minutes to 'recompile'.
This makes it very hard to edit in tree when one is used to fast compiler turnaround times.

If try to change a theme by pressing the theme button nothing happens.

The files finder.json list.json persons.json tree.json that are used in the examples are not accessible from the application.
Example 1: http://qooxdoo.org/qxl.demobrowser/#data~JsonToList.html

A 404 is observed in the console when trying to load the remote model demo. It's trying to reach https://qooxdoo.org/qxl.demobrowser/demobrowser/demo/table/demobrowser/backend/remote_table.php?method=checkphp

demo/Showcase/IconFont.js: Geht nicht
demo/Widget/Image.js: Iconfonts geht nicht.

The file webworker.js is absent. Error:
GET http://qooxdoo.org/qxl.demobrowser/demobrowser/demo/bom/demobrowser/demo/webworker/webworker.js 404 (Not Found)

In the demo browser, clicking the "Run" button, or double-clicking an item in the tree shows a pane with 404 trying to reach https://qooxdoo.org/qxl.demobrowser/null Double-clicking again, or clicking the "Run" button again displays the demo correctly again.