Issue compiling some modules

[suarna]

When i try to compile with the gnu radio compiler some modules show the next output (or similar)...most of them works fine

Validation failed:

Block - mymap - Variable(variable):
    Param - Value(value):
        Value "lte.frame_pilot_value_and_position(N_rb_dl, initial_id, 1, 0)" cannot be evaluated:
        name 'lte' is not defined

Block - mymap1 - Variable(variable):
    Param - Value(value):
        Value "lte.frame_pilot_value_and_position(N_rb_dl, initial_id, 1, 0)" cannot be evaluated:
        name 'lte' is not defined

Block - poss0 - Variable(variable):
    Param - Value(value):
        Value "mymap[0]" cannot be evaluated:
        name 'mymap' is not defined

Block - poss1 - Variable(variable):
    Param - Value(value):
        Value "mymap1[0]" cannot be evaluated:
        name 'mymap1' is not defined

Block - vals - Variable(variable):
    Param - Value(value):
        Value "mymap[1]" cannot be evaluated:
        name 'mymap' is not defined

Block - import_0 - Import(import):
    Param - Import(import):
        Import "import lte" failed.

Block - lte_channel_estimator_vcvc_0 - Channel estimator generic(lte_channel_estimator_vcvc):
    Param - pilot carrier map(pilot_carriers):
        Value "poss0" cannot be evaluated:
        name 'poss0' is not defined

Block - lte_channel_estimator_vcvc_0 - Channel estimator generic(lte_channel_estimator_vcvc):
    Param - pilot symbol values(pilot_symbols):
        Value "vals" cannot be evaluated:
        name 'vals' is not defined

Block - lte_channel_estimator_vcvc_0_0 - Channel estimator generic(lte_channel_estimator_vcvc):
    Param - pilot carrier map(pilot_carriers):
        Value "poss1" cannot be evaluated:
        name 'poss1' is not defined

Block - lte_channel_estimator_vcvc_0_0 - Channel estimator generic(lte_channel_estimator_vcvc):
    Param - pilot symbol values(pilot_symbols):
        Value "vals" cannot be evaluated:
        name 'vals' is not defined
Error during file compilation.
> 

Any idea about solving this? Thanks in advance

[suarna]

Updating my system to Ubuntu 18.04 LTS has solved the problem