When running pw.x (tested on v5.0.2) in vc-relax mode with LDA+U the parser will use the Forces acting on atoms mark to start parsing atomic forces. However, due to the LDA+U switch, directly after this line, output related to Hubbard U is printed instead of the atomic forces, causing the parsing to fail.
This seems to be particular to v5.0.2 and so it might not be worth to fix it as it is such an old version. The problem is verified to be non existent for Quantum ESPRESSO v6.1
When running
pw.x
(tested on v5.0.2) invc-relax
mode withLDA+U
the parser will use theForces acting on atoms
mark to start parsing atomic forces. However, due to theLDA+U
switch, directly after this line, output related to Hubbard U is printed instead of the atomic forces, causing the parsing to fail.This seems to be particular to
v5.0.2
and so it might not be worth to fix it as it is such an old version. The problem is verified to be non existent for Quantum ESPRESSOv6.1