Compiling Error

[veinyyxy]

error: namespace "Eigen" has no member "VectorX"
\DROID-SLAM\src\droid_kernels.cu(1100): error: this declaration has no storage class or type specifier
\DROID-SLAM\src\droid_kernels.cu(1100): error: expected a ";"
\DROID-SLAM\src\droid_kernels.cu(1107): error: namespace "Eigen" has no member "VectorX"
\DROID-SLAM\src\droid_kernels.cu(1107): error: expected a ")"
\DROID-SLAM\src\droid_kernels.cu(1104): error: identifier "b" is undefined
\DROID-SLAM\src\droid_kernels.cu(1108): error: "b" is not a nonstatic data member or base class of class "SparseBlock"
\DROID-SLAM\src\droid_kernels.cu(1148): error: identifier "b" is undefined
\DROID-SLAM\src\droid_kernels.cu(1155): error: identifier "b" is undefined
\DROID-SLAM\src\droid_kernels.cu(1155): error: class "SparseBlock" has no member "b"
error: no instance of constructor "SparseBlock::SparseBlock" matches the argument list
argument types are: (const Eigen::CwiseBinaryOp<Eigen::internal::scalar_difference_op<double, double>, const Eigen::SparseMatrix<double, 0, int>, const Eigen::SparseMatrix<double, 0, int>>, , const int, const int)
\DROID-SLAM\src\droid_kernels.cu(1164): error: identifier "b" is undefined
\DROID-SLAM\src\droid_kernels.cu(1182): error: identifier "b" is undefined
\DROID-SLAM\src\droid_kernels.cu(1182): error: no instance of overloaded function "Eigen::SimplicialLLT<_MatrixType, _UpLo, _Ordering>::solve [with _MatrixType=Eigen::SparseMatrix<double, 0, int>, _UpLo=1, _Ordering=Eigen::AMDOrdering]" matches the argument list
argument types are: ()
object type is: Eigen::SimplicialLLT<Eigen::SparseMatrix<double, 0, int>, 1, Eigen::AMDOrdering>

15 errors detected in the compilation of "/DROID-SLAM/src/droid_kernels.cu".

Thanks a lot.

[hzwer]

I meet the same issue using cuda11.0. Fortunately, I re-used cuda10.2 + cudnn8.0.4 + torch1.7.1 and successfully ran the demo.py provided by the author.

[ZifaZhu]

I meet the same issue using cuda11.0. Fortunately, I re-used cuda10.2 + cudnn8.0.4 + torch1.7.1 and successfully ran the demo.py provided by the author.

Which version of python did you use? Thx.

[hzwer]

I meet the same issue using cuda11.0. Fortunately, I re-used cuda10.2 + cudnn8.0.4 + torch1.7.1 and successfully ran the demo.py provided by the author.

Which version of python did you use? Thx.

3.7

[SongQiPing]

I think there is a problem with the Eigen version. VectorX is not available in Eigen 3.3, but it is available in VectorX 3.4. It is recommended to update the version of Eigen and build it from the source code on the official website

[AwesomePeiweiPan]

I tried upgrading Eigen3.3 to Eigen3.4, but it didn't work

The good news is that I found that I didn't use - recursive when cloning, you can try
use
git submodule update --init --recursive

good luck