I updated redmine from 1.1.1 to 1.2.0, however, the useful feature 'Export to PDF' suddenly broke, when I look into the change log of redmine, I found this:
Patch #8312: Switch to TCPDF from FPDF for PDF export
I think this change causes the feature broken. Could anyone fix it or I have to wait until the developer team of redmine says that 1.2.0 is stable enough to migrate?