Cannot install pgadmin4-apache2

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Hello,

I am unable to install pgadmin4-apache2 on a new server running Ubuntu
18.04 server.  I am following the instructions on
https://wiki.postgresql.org/wiki/Apt, but "sudo apt install
pgadmin4-apache2" returns the following:

Some packages could not be installed. This may mean that you have
> requested an impossible situation or if you are using the unstable
> distribution that some required packages have not yet been created
> or been moved out of Incoming.
> The following information may help to resolve the situation:
> The following packages have unmet dependencies:
>  pgadmin4-apache2 : Depends: pgadmin4-common (= 4.16-1.pgdg18.04+1) but it
> is not going to be installed
> E: Unable to correct problems, you have held broken packages.


and "sudo apt install pgadmin4-common" returns the following:

Some packages could not be installed. This may mean that you have
> requested an impossible situation or if you are using the unstable
> distribution that some required packages have not yet been created
> or been moved out of Incoming.
> The following information may help to resolve the situation:
> The following packages have unmet dependencies:
>  pgadmin4-common : Depends: python3-werkzeug (>= 0.15) but 0.14.1+dfsg1-1
> is to be installed
>                    Recommends: pgadmin4-doc but it is not going to be
> installed
>                    Recommends: python3-psycopg2 (>= 2.8) but 2.7.4-1 is to
> be installed
> E: Unable to correct problems, you have held broken packages.


I'm not sure how to proceed.  Any help will be appreciated.

Thanks,
Gabriel

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<div dir=3D"ltr">Hello,<div><br></div><div>I am unable to install pgadmin4-=
apache2 on a new server running Ubuntu 18.04 server.=C2=A0 I am following t=
he instructions on=C2=A0<a href=3D"https://wiki.postgresql.org/wiki/Apt">ht=
tps://wiki.postgresql.org/wiki/Apt</a>, but &quot;sudo apt install pgadmin4=
-apache2&quot; returns the following:</div><div><br></div><blockquote class=
=3D"gmail_quote" style=3D"margin:0px 0px 0px 0.8ex;border-left:1px solid rg=
b(204,204,204);padding-left:1ex">Some packages could not be installed. This=
 may mean that you have<br>requested an impossible situation or if you are =
using the unstable<br>distribution that some required packages have not yet=
 been created<br>or been moved out of Incoming.<br>The following informatio=
n may help to resolve the situation:<br>The following packages have unmet d=
ependencies:<br>=C2=A0pgadmin4-apache2 : Depends: pgadmin4-common (=3D 4.16=
-1.pgdg18.04+1) but it is not going to be installed<br>E: Unable to correct=
 problems, you have held broken packages.</blockquote><div><br></div><div>a=
nd &quot;sudo apt install pgadmin4-common&quot; returns the following:</div=
><div><br></div><blockquote class=3D"gmail_quote" style=3D"margin:0px 0px 0=
px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">Some pack=
ages could not be installed. This may mean that you have<br>requested an im=
possible situation or if you are using the unstable<br>distribution that so=
me required packages have not yet been created<br>or been moved out of Inco=
ming.<br>The following information may help to resolve the situation:<br>Th=
e following packages have unmet dependencies:<br>=C2=A0pgadmin4-common : De=
pends: python3-werkzeug (&gt;=3D 0.15) but 0.14.1+dfsg1-1 is to be installe=
d<br>=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0R=
ecommends: pgadmin4-doc but it is not going to be installed<br>=C2=A0 =C2=
=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0Recommends: pyth=
on3-psycopg2 (&gt;=3D 2.8) but 2.7.4-1 is to be installed<br>E: Unable to c=
orrect problems, you have held broken packages.</blockquote><div><br></div>=
<div>I&#39;m not sure how to proceed.=C2=A0 Any help will be appreciated.</=
div><div><br></div><div>Thanks,</div><div>Gabriel</div><div><br></div><div>=
<br></div><div><br></div><div><br></div></div>

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