cvxpy solver error:SolverError: The solver GLPK_MI is not installed.

[sahsoni]

I'm new to cvxpy. Installed cvpxy using following command
conda install -c conda-forge lapack conda install -c cvxgrp cvxpy
But while I'm trying to run the code knapsack_problem.solve(solver=cvxpy.GLPK_MI), I'm getting error message SolverError: The solver GLPK_MI is not installed.

[rileyjmurray]

GLPK is not installed by default. You can access GLPK by installing CVXOPT first.

[h-vetinari]

We ran into the same issue, but with CVXOPT installed and importable, and GLPK_MI showing up in the installed solvers:

> print(cvxpy.installed_solvers())
['CVXOPT', 'ECOS', 'ECOS_BB', 'GLPK', 'GLPK_MI', 'OSQP', 'SCS']

With 1.0.25 (installed through conda on windows), when trying to solve a problem with the solver, we got:

> prob.solve(solver=cvxpy.GLPK_MI)
[...]
SolverError: The solver GLPK_MI is not installed

With 1.0.27, the problem is not there anymore. Not sure if this is the exact cause, just reporting that this solved it for us.