I am currently following the UPGRADE process in odoo.sh to migrate to Odoo v15. Because some of the templates have been removed or renamed in v15, I got 100 errors similar to:
ValueError: External ID not found in the system: website_sale.header
Most of these errors are caused by the third party template: "Theme Clarico Vega".
How to deal with (Theme-) templates which are not existing in the destination version? I have heard about pre-migrate scripts to disable views during migration process: https://www.youtube.com/watch?v=n0jQQlEnUUQ but i can t figure out how to manage the steps to handle views (see screen shots in attach). Scripts examples (pre-migrate.py, post-migrate.py and end-migrate.py) are welcome :)
I\ have\ also\ tried\ to\ figure\ out\ what\ to\ do\ with\ the\ OpenUpgrade\ informations:\ https://github.com/OCA/OpenUpgrade/blob/15.0/openupgrade_scripts/scripts/website_blog/15.0.1.1/upgrade_analysis.txt For instance:
---Models in module 'website_blog'--- ---Fields in module 'website_blog'--- ---XML records in module 'website_blog'--- NEW ir.asset: website_blog.s_blog_posts_000_js NEW ir.ui.view: website_blog.s_blog_posts DEL ir.ui.view: website_blog.assets_editor DEL ir.ui.view: website_blog.assets_frontend DEL ir.ui.view: website_blog.assets_snippet_s_latest_posts_css_000 DEL ir.ui.view: website_blog.s_latest_posts DEL ir.ui.view: website_blog.s_latest_posts_big_picture_template NEW website.snippet.filter: website_blog.dynamic_filter_latest_blog_posts
