I got this message after typing in address bar of my browser: example.com/node/add/article?translation=1&target[]
Warning: Illegal offset type in isset or empty in translation_node_prepare() (line 288 of D:\www\d-test\d8\modules\translation\translation.module).

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chi’s picture

chi commented

To reproduce this error translation module must be enabled.

chi’s picture

chi commented
Status: Active » Closed (duplicate)

So we shall find global solution.
#1242472: Invalid type of $_GET variables causes PHP warnings and notices when treated as strings