Bad request when updating Appengine with mvn appengine:update

Question

i\'m getting the following error, when I try to update a appengine-application with the appengine-maven-plugin:

400 Bad Request
Error when loading application co         


        

Answer 1

I had the same issue as you described. When I added the "version" element in the configuration element, with value pointing to the version of the app in my appengine-web.xml file, mvn appengine:update completed successfully. (maven v3.1.0, appengine plugin v1.8.3)

in pom.xml:

....

   com.google.appengine
   appengine-maven-plugin
   ${appengine.version}
   
      MY-VERSION
   

...

in appengine-web.xml:

...
MY-VERSION
...