Openbravo invalid source path error when installing new modules/updating - openbravo

I´m a beginner using OpenBravo ERP.
I installed the software on a Feroda machine using the custom installation guide.
All went fine and the system started up. I then entered on tha default Openbravo account, choose System Administrator role, went to Application->General Setup->Application->Module Management to install some local packages for Brazil. I saw "21 updates available". Either trying to update the packages, or to install my local packages I´m getting the same error when I click "Install":
ERROR: org.openbravo.base.exception.OBException: invalid source path
Can someone help me to solve that ?
Thanks!

This seems to be a permission issue. Can you check if the tomcat user(or the user which writes to the tomcat directory) has permissions to write to the webapps directory.

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Vaadin Whitelabel Error Page "Failed to install Node"

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I just tried with an english version of Windows 7 installed via Win7_Pro_SP1_English_x64.iso.
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https://github.com/arangodb/arangodb/issues/11041
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Are there any pre-installed virtual machines available for this? (I googled but couldn't find anything.)
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