SugarCRM Invalid Package
This shows you two different methods for fixing the error Invalid Package in SugarCRM.
I encountered this problem as I was trying to upload JasperReports add-on package to work with Zucker Reports. Hence, you will find the following methods are related to Jasper Reports but the same methods should also work for other add-on packages as well.
You can increase the maximum upload limit of your PHP setting and SugarCRM's setting.
You can manually upload your packages onto your server through FTP and then copy the manifest file from the zipped files to the same folder.
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