[Pw_forum] cp.x not existent or not executable

[kada galami]

dear users
when i try to run the example 20, i found this :
/espresso-4.0.5/examples/example20> ./run_example
usr/local/espresso-4.0.5/examples/example20 : starting
This example shows how to use cp.x to perform molecular dynamicssimulation of NH3.
  executables directory: /usr/local/espresso-4.0.5/bin  pseudo directory:      /usr/local/espresso-4.0.5/pseudo  temporary directory:   /usr/local/tmp  checking that needed directories and files exist...ERROR: /usr/local/espresso-4.0.5/bin/cp.x not existent or not executableAborting
what is the probleme




      
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